Comcast hdmi handshake problems Reply reply geraltoffvkingrivia • Reply reply More repliesMore replies chuckles_8 • That is either your hdmi cord or your hdmi port my cousins TV does this from time to time makes playing bloodborne a little more intense Reply reply [deleted] • Apr 24, 2009 · I have a Samsung 2500 and a Comcast DCH 3416 both connected through HDMI to the Onkyo, and the damn receiver just can't get it together. when i was searching to . Many people experience issues with their HDMI connections, and it can be challenging to identify the problem. C) too HDMi 2 (Xbox Series X) the resolution on the Xbox drops down too 640x480. Every morning, if I want to watch the news or anything else on TV, I turn the TV on, wait for the screen to give me the " no signal on HDMI 3" thing, I then unplug the X-1 box, wait about a minute, I then plug it back in. From what I can tell I Oct 19, 2019 · Is there a secret to doing a transfer from one Bolt to another? It seems every time I try using TiVo Online it appears like it's going to transfer but nothing happens. But fear not, as we have the solution for you! In this article, we will unlock the secret to resetting your HDMI handshake with ease, providing you with the Mar 24, 2007 · Thus, I think it's a Lumagen problem. I am wondering if the assembled wisdom here has anything to offer regarding potential underlying problem or longer lasting solution. I have a Samsung 2500 and a Comcast DCH 3416 both connected through HDMI to the Onkyo, and the damn receiver just can't get it together. I googled it and it's a hdmi handshake problem. #6: HDMI handshake failure “My TV screen turns pink when changing sources or plugging a new one. Prosessionally installed (because I do not have the capability or knowledge). Jun 29, 2020 · I myself have been dealing with this comcast handshake issue for over 2 months now. For a problem free receiver I suggest a Denon or Marantz. Is there some setting on the Denon or the LG that I can adjust to fix this issue? Jan 24, 2025 · The HDMI (High-Definition Multimedia Interface) handshake process is a crucial aspect of modern home entertainment systems, enabling the seamless transmission of audio and video signals between devices. If you set Audio output to ARC and don't get any audio out of the soundbar, to check the Digital Audio Out setting: Tip: To get audio out of the soundbar and external speakers, the setting should be set to Auto, Pulse-Code Modulation (PCM), or Pass Through. Mar 9, 2021 · Apologies for the long post … I have a relatively straightforward home theater setup based around some older equipment. HDMI / HDCP Handshake issues occur when the source doesn't accept the keys from HDMI Distribution equipment. I don't pay for DVR but it was the only box they had with HDMI. Jul 30, 2025 · With the ever-increasing reliance on digital devices for entertainment, the HDMI (High-Definition Multimedia Interface) has become a vital connection for transmitting audio and video signals. These simple steps can often solve minor problems without needing Feb 1, 2015 · I wanted to start a new thread to see if anyone has any insight as online searches yield very little information on HDMI handshake problems and static. yes, turn off tv and that fixes it. Check out what to do when an HDMI connection isn't working. Mar 25, 2024 · Are you frustrated by the dreaded “No Signal” message on your Insignia TV when trying to connect a device via HDMI? You’re not alone. HDMI handshake issues can Sep 15, 2009 · ALL MOTOROLA STB's have HDMI handshake issues. Also digital/hd cable with Comcast and a Cisco rng200 set top box/dvr. Yet, issues like HDMI handshake failures can stop you from watching movies or playing games. This issue has been known and Motorola and Samsung are working on the fix. Amp and PC are connected using the eARC plug. We bit the bullet and swapped out our expensive HDMI cables for comp Sounds like a handshake issue to the tv. The tv will say no signal. Samsung did admit to the problem and have changed there HDMI in the newer models to get rid of Nov 25, 2024 · Hello All, I have been working for a low voltage company for around 9 years and recently our bread and butter one room setup is having all sorts of issues with HDMI handshakes. I always leave my box turned on, but now when I turn on the TV, I end up getting a picture like this: Is this a handshake issue between the box and the TV? I always thought that handshake issues resulted in no picture. HDMI Standard to Standard cable. With my older LCD TV the DTA worked fine but with the new plasma, we would get a pink screen with no sound every time the TV was turned on. Many Insignia TV owners face this issue, which can be caused by various factors, from loose cable connections to compatibility issues. V Shut down the Xbox Unplug both Jul 7, 2010 · I have had handshake problems since I replaced an HR-20 with the HR24. Everything works great when operating on HD Not sure how many have experienced this, but all the new 40 series Nvidia GPUs and 30 series GPUs have a major hdmi handshake problem with Sony's 2021 and 2022 TV models. The downside? It's a really frequent issue that some people might literally get every time they turn on certain devices Apr 29, 2008 · Just got my new 9. These issues stem from incompatible firmware, poor cables, or incorrect settings like resolution or refresh rate. This simple power cycle can sometimes resolve temporary handshake issues between the devices and allow for proper detection. Jan 8, 2020 · The control4 isn't actually sending the HDMI signal to the display unless you're using a C4 video matrix. These tips, based on real-world experience, will help you identify and address handshake issues effectively. When I turn on the TV (42" Panny plasma) I don't get a picture until I turn the TV off and on once or twice. Anyone has recommendation if anything needs to be tweaked? My other computers that I connect to HDMI port on the monitor do not experience this issue. But here's what's going on. To fix them, check connections, update firmware, and use high-quality, shielded cables. May 25, 2025 · This article will delve into the depths of what causes HDMI handshake issues, providing you with a comprehensive understanding of the culprits behind the problem. If problems persist, upgrading hardware or adjusting settings may be needed. Now there are actually at least 5 different issues. 3 in & out and would like to Dec 30, 2022 · It's an HDMI handshake problem. I have been reading through the V10 threads and see a number of V10 owners reporting HDMI handshake/sync issues with Onkyo receiver/prepros. To perform a HDMI handshake, you will need to turn off both the TV and the HDMI device. Custom integrators use HDMI video distribution equipment (Matrix Switchers, Extenders, AV over IP, or Distribution Amplifiers) in their installations every day. 1 sound. No problem on Comcast. The HDMI Handshake HDMI is now the main type of connection used in home theater setups include HDTVs, video projectors, Blu-ray Disc players, home theater receivers, network media players, and even cable/satellite boxes. Apr 11, 2007 · HDMI & DVI have a companion high-definition content protection (HDCP) system that sometimes leaves authorized consumers in mute, watching a blank screen, blinking video, or snow while being held hostage by a bug known as the "HDCP handshake problem. HDMI Handshake Problems: HDMI handshake refers to the communication between the TV and the connected device. May 12, 2024 · Question LG G3 Handshake Problem Hi all, The LG G3 TV is great apart from one very annoying problem. We would like to show you a description here but the site won’t allow us. Personally I run component from my Time Warner Cisco cable box to the AR100U mainly because I've always used this connection. Could it be faulty Onkyo? I already set it to HDMI 8k enhanced, but without luck. Sep 25, 2020 · If I hook up the HDMI cable directly to the non-EARC 4k output for monitor 1, I have no issues at all with the picture coming right on. Try another hdmi port and or hdmi cable Oct 3, 2008 · I finally got hdmi cables to replace my componenets. Only remedy so far is to unplug the HDMI cable on the RTX and reconnect, then handshake is re-established and monitor displays content. Any idea's what can this be? The below information can help you identify and resolve audio issues that you may experience with your Xfinity TV service. After a while the handshake comes through Apr 4, 2025 · Step into easy fixes with Comcast Troubleshooting TV. 62 Build 08. If problems persist, we’ll suggest when to seek professional help for system fine-tuning. It's not likely that the issue is C4 related. When you switch your distribution system from one source to another, it needs to re-authenticate the HDMI Handshake, ensuring that the signals passing along the infrastructure are authorized. Xfinity released an update to the handoff so that the TV boxes will shut off when the TV is off for a certain amount of time to save power. Any solutions? May 4, 2020 · THE SOLUTION? Holding the HDMI Handshake. If it’s not, consider upgrading to an Xfinity Gateway. This article will help you fix HDMI connection problems. The TV is a Sony XH90 55". 35), which, among other things, was supposed to address HDMI handshake failures. It's not a constant issue, and certainly doesn't happen every day, but it is annoying. Understanding HDMI Handshake Before diving into solutions, it’s essential to understand what HDMI handshake is. I know -- it happened to me. Apr 28, 2025 · Dealing with Xfinity cable box issues can be frustrating. I’ve swapped out the hdmi cable and confirmed the hdmi port works with other accessories. Jun 11, 2009 · We've been having HDCP failures since late last year just about every time we attempt to watch tv. Nov 25, 2024 · Vielleicht kann mir jemand bei meinem HDMI-Handshake-Problem helfen. They leave the site, and everything is working great Apr 26, 2022 · HDMI Standard to Micro cable. Apr 2, 2008 · I'm in the SF area and I've got a 3416, and definitely still have the HDMI handshake issue. 9. 1 CABLE. Additionally, make sure to keep devices up to date with the latest firmware and software updates. Seems like a long term xfinity problem. Are you connecting the Chromecast directly to the TV, or through a switch or splitter? The only time I have this problem is if I turn off the power to the TV as if there is a handshake problem??? The TV has two HDMI inputs and when I move the cable to the other HDMI input, the problem still occurs. Nov 3, 2024 · “Resolving HDMI connection problems and ensuring a reliable audio/video signal handshake is essential for maintaining a high-quality home theater experience with your Marantz AV receiver. May 11, 2018 · Problems with HDMI handshake (advice please) Discussion in ' Audio Hardware ' started by toptentwist, May 11, 2018. Thanks in advance! Nov 13, 2008 · I highly recommend you try component connections, I think you will find it very similar picture-wise to HDMI, but without the handshake problem. Aug 16, 2012 · I have a Comcast Motorola STB/DVR connected to a Yamaha RX-V473 Receivers HDMI Input and then an HDMI (ARC) Output to Sharp Aquos Quattron HDMI (ARC) Input. Xfinity customers who rely on non-verbal communication have access to dedicated customer support services through our ASL Support Center. What Is an HDMI Handshake? Apr 6, 2016 · Hi Everyone. It seems like it appears with old consoles and nearly every modern LG OLED Tv. HDCP handshaking issues are problems with Video or Audio on your display (Most commonly caused by a High-bandwidth Digital Content Protection (HDCP) encryption. Nov 9, 2022 · Without getting into all the gory details - after a ton of trouble shooting with Marantz specialists and a home theater installer, it was concluded that the comcast 4K may be putting out extreme voltage that is frying the Marantz HDMI input and causing this issue. Note: In simple words, HDMI handshake is the devices’ ability to recognize and communicate with one another. been told the green screen lock is caused by the hdmi-hdcp handshake? or some other technical term. In this short, we show you how to identify and fix handshake failures fast: • Power the display on first, then the source • Reseat HDMI connections for a clean hot plug • Let the handshake Jan 10, 2025 · To help you resolve these problems efficiently, we’ve compiled a step-by-step troubleshooting guide. Any way to improve HDMI handshaking between LG C1/CX and PC when coming back from sleep? Mar 14, 2007 · Today, Comcast pushed the latest firmware update (ver. My display is a Panasonic TC-P54G25 plasma (from 2010). Jun 29, 2009 · Once I removed the HDMI inputs from my TV, leaving just the S-video and RCA audio jacks in, the problem ceased. Thanks. Didn't solve the problem, but when I switched to the HDMI imput a blue screen popped up stating something like "HD content has been compromised, switch to component" and then the HDMI port is shut down. Plug the TV back in and turn it on. Diferrent brand (Denon), but I'd try it without the CEC enabled. So that's where I'd start. The failure would occur anytime from 2 minutes to one hour into viewing. At one point, I guess they had a firmware update for the TV that supposedly resolved a lot of the HDMI handshake issues, but unfortunately enough time seems to have passed that I can't seem to locate any firmware updates for it. Sep 18, 2011 · Hdmi handshake problems are pretty common with cable and sat boxes. 1 day ago · By understanding the possible causes, from HDMI handshake issues to firmware glitches, you can take the necessary steps to troubleshoot and resolve the problem. Jun 2, 2017 · Now I have hdmi issues. Thanks again and I'm sorry for the long post! Archived post. 31 and I've really no issues with DVR recording and playback,. Aug 18, 2023 · 8. HDMI CEC can be the cause. I would guess it's the cables (Baseus HDMI 2. In this article, we’ll explore the most common reasons why your HDMI might not be playing video and provide step-by-step troubleshooting guides to help you resolve the issue. You can verify the sound bar works and all the inputs with other sources you can eliminate that as the problem. The “Handshake” Check HDMI devices perform a digital “handshake” to agree on copy protection (HDCP) and resolution. We'll cover what an HDMI handshake is and how devices communicate to agree on video and 3 days ago · Real-time outage overview for Xfinity. Installer has been back twice May 6, 2025 · HDMI handshake issues on the PS5 can stop players from enjoying their gaming console, but certain fixes & troubleshooting methods could help. Here is an example Sony K65XR70 TV, DENON AVRX2800H, APPLETV (possibly an AV Pro Edge Balun AC-EX70-444-KIT 4K BALUN) I've been reading about BDP to receiver via HDMI and the handshake issues. In this article, we will explore what HDMI handshake is, its common causes, and effective strategies to prevent it Apr 14, 2011 · When I turn my system on (watch tv),I have to have my cable box tuned to a non-HD channel or my tv says no signal,after about 5 or 10 minutes I can tune to HD channel. Perhaps Component would be a better option? · actions · 2011-Sep-10 7:28 A HDMI handshake is the term we use when getting our HDMI devices to completely reconnect with our TVs. For a deeper understanding and After ensuring the physical connections are secure, try unplugging the HDMI cable from both devices, waiting for about 30 seconds, and then plugging them back in. Oct 16, 2007 · I assume this is due to the HDMI handshake issues. I've not heard about as many issues on their receivers. You’ll learn how to ensure a great audio-visual experience. Jul 19, 2025 · Learn How to Fix HDMI Handshake Issues Between Devices with our step-by-step guide. This worked well for over a year, allowing video input control via the receiver (switching between the Playstation and the TV as May 5, 2019 · The TV will periodically try to perform the HDMI handshake, where there will be a loss of sound, but no picture (except the text “HDMI” in the left top corner of the screen). 1: If I bring up the NAD UI then exit out the tv loses connection completely. Apr 3, 2012 · Comcast boxes are among the worst offenders of HDMI handshake errors, although can be easily resolved by bypassing the AVR and passing HDMI straight to the TV with optical from the box to the AVR for surround sound. Comcast is on hdmi 1. Would need to know more about how the devices are connected to give more info. Nov 13, 2008 · I highly recommend you try component connections, I think you will find it very similar picture-wise to HDMI, but without the handshake problem. . Oct 4, 2023 · In this section, we’ll address common connection issues related to HDMI, coaxial cable, Wi-Fi, and Ethernet connections. 8 processor and am trying to connect my Toshiba A-1 HD-DVD player, a Motorola DVR (Comcast) and my JVC RS-1. Jan 12, 2025 · How long are your HDMI cables? HDMI handshake issues are almost 90% caused by inadequate HDMI cables. tech was not aware of this green screen issue but i found posts going back to 2007 online talking about it. 35 to us by this Thursday. Also, in a unrelated issue, what is the best setting for video on the Bolt? It seems there are a lot of HDMI handshake issues Jan 7, 2025 · Struggling with HDMI CEC issues? Learn how to fix common problems with HDMI devices, improve connectivity, and ensure seamless control between your devices Nov 25, 2024 · Hello All, I have been working for a low voltage company for around 9 years and recently our bread and butter one room setup is having all sorts of issues with HDMI handshakes. Mar 6, 2008 · First run the HDMI from the cable box directly to your set. Ich habe ein "selbstgebautes HTPC" --> "AVR" --> "Projektor JVC NP5"-Setup. Try powering off both the TV and the device, then turning them on again to establish a new handshake. This way will force the TV and the Comcast to do their handshake again. Is there an AVR in play, or a video matrix or directly connected from source to Struggling with HDMI handshake issues on your Xbox? Don't worry, you're not alone. Will be getting a new receiver with HDMI 1. After a while the handshake comes through and audio starts, and then a few minutes later we get video. Problems with your TV signal, phone issues or is internet down? We'll tell you what is going on. There are gear ID's that get passed during the handshake. HDCP Content Protection Error: High-Bandwidth Digital Content Protection (HDCP) is a security feature Get a new high speed hdmi cable. In this comprehensive guide, we’ll walk you through the steps to troubleshoot and resolve the Insignia TV no signal Mar 11, 2008 · I recently switched from component to DVI - HDMI on my Comcast HD-DVR and I'm running into some weird problems with the picture. A local guy informs me that Comcast is going to push 16. New comments cannot be posted and votes cannot be cast. Mar 30, 2012 · The most reliable way to establish a good HDMI handshake is to turn on the television first and let it boot up, then turn on the receiver, then turn on the cable box and Blu-ray player. I’ve heard there are cheap 1x2 splitters on Amazon that will give the handshake on the input but not need it for output. If still no joy, a work around would be to connect the Sky HDMI directly to the TV with optical to the 1911 or use a universal remote to turn ON/OFF the AVR. You aren't using 90% of the receiver at all. Aug 22, 2024 · Every 8 to 10 months(?) I seem to be getting handshake issues that can only be resolved by swapping out for a new cable. However, many users are unaware of the intricacies involved in this process, often leading to frustration and confusion when issues arise. Jan 24, 2011 · You didn't mention having problems with your Blu-ray player, but the fact that the cable box & Apple TV are losing HDMI handshake suggests your older 720p TV could be the culprit and may be a slight compatibility issue with the HDMI repeater in the SC-05. Apr 12, 2025 · Faulty HDMI Cable: A damaged or uncertified cable can disrupt the crucial HDMI handshake. 6 days ago · Too many game consoles, cable boxes and streaming devices to connect to your TV's HDMI inputs? Don't worry, there are a bunch of options. Apr 24, 2009 · Hi Folks, My 606 has been slowly crapping out for a couple of months, and I fear the HDMI daughtercard is fried. I do not experience this problem with my Oppo DVD player connection via DVI to HDMI. Sep 25, 2025 · From games consoles to media streamers, HDMI is the go-to for connections. i was on the phone with both comcast and onkyo, they both concluded that i had a handshake issue and there was nothing i could do, i would not be able to get video through hdmi from cable box---> onkyo 604---> projector. You can fix these issues by buying an OPTICAL HDMI 2. Troubleshoot using Xfinity Assistant Open Startup problems in low res, fuzzy snow screen of death, black out screen on netflix, disneyplus errors, etc, etc. You could try a different HDMI cable from the receiver to the TV. May 1, 2024 · Are you tired of encountering HDMI connection issues when trying to enjoy your favorite movies and shows on your TV? The elusive HDMI handshake problem can be frustrating and disruptive, causing glitches in audio and video playback. Apr 20, 2009 · Your issue is an HDMI handshake problem. Swapping cables fixed it. First I want to say I have Comcast Cable and FiOS on 2 different channels, and I'm sitting here watching the NBA finals and the picture is MUCH better using FiOS! I have: Release 1. There is not a fix besides power cycling for these as far as I know. Tried swapping out the box for another, and same problem. Comcast tech said the signal is strong at cable box. That's great news because, 99 percent of the time, it won't require replacing any of your electronics. It's more likely to be a HDMI issue. ” Quick Initial Troubleshooting Steps When you face a ‘no signal’ issue with your Marantz AV receiver, start with some quick fixes. Note: HDMI handshake refers to the device’s ability to communicate. 58 Platform QIP-71216 P1 I have a Sharp Aquos 52" 120Hz that is about 6 months old. One purpose of is to simplify connecting all your components together by using one cable both audio and video. Wait 60 seconds. If you’re still having issues, troubleshoot here. Jun 9, 2024 · My new Samsung tv will not recognize xfinity. The HDMI handshake is a process where your console and TV or monitor communicate to establish a connection. Just search the internet and you will see that. Loose Connections: Poor connectivity or loose HDMI ports lead to signal disruption. Sources Feb 23, 2014 · So I have a Comcast DVR cable box hooked up to my Yamaha RX-V773 receiver via HDMI (and optical audio connection). Stumbled across a forum post finally where someone just said you need a repeater to break that handshake between tv and series x, skeptical but tried it and it bloody worked. Unplug the power cables (not just the HDMI) from the wall for both the TV and the source device. Nov 11, 2016 · Natsukage : If you want to save yourself some problems, you can always ditch the HDMI switching and simply connect all to the TV directly, then use an optical wire from the TV to the amp? If your TV doesn't have enough HDMI inputs, get an HDMI switcher. The receiver is hooked to my TV through HDMI out. Feb 1, 2014 · We recently added Comcast HD DTAs to some TVs, one being a new Samsung F5500 plasma. Powering on the receiver (cable input) yields no video to my Samsung LN46A550 for upwards of 10 minutes. Jul 27, 2005 · I just got Comcast, I have their HD DVR box, and tried to set it up using the DVI->HDMI cable into my JVC 61z786. This is called a Handshake issue. Could this be an HDCP problem? Sep 7, 2013 · HDMI handshake problems between cable boxes and projectors are more common than they should be. Sometimes, this negotiation fails. please refere to the official thread on AVS forums for more accurate information. It is simply selecting the input/outputs. Discover real solutions to resolve black screen and no signal problems. I am relatively new at Home Theatre, but would i be correct in connecting my Comcast box to the Denon through component for video and optical for audio? Doesn't the Denon upconvert the component to HDMI before it sends it to the TV anyways? Dec 28, 2024 · Are you frustrated with your HDMI connection not playing video? You’re not alone. These problems often stem from incompatible EDID data, HDCP restrictions, poor cables, or hardware limitations. Try an different input on the TV too. using comcast hd tuner with hdmi output. Understanding this handshake is key to resolving common connection issues with your entertainment system. I have a Sony A8H, Denon X6700H, and If your Xfinity TV or Internet isn’t working, use Xfinity Assistant online or in the Xfinity app to troubleshoot the issue. Not tried Xbox yet. It’s also a good idea to restart devices regularly to ensure that they are communicating correctly. I then get a picture and sound. Hi guys. Apr 29, 2024 · When I switch my Samsung smart TV to HDMI to Comcast, it’s a small picture in the upper left hand. Comcast, Verizon, Time Warner. PS4 pro on hdmi 3. I can do a hard reset on the box and do a new setup or could this be a handshake problem with my tv? For the record, I am using the HDMI cable they gave me. Aug 6, 2007 · Anyone have an HDMI handshake issue with your tv? If so, were you able to fix it? I have an HP 5880 and haven't been able to find any solutions. No picture, low resolution and so on. To minimize the issue, try turning the HDMI-CEC (Anynet+) on the Samsung to OFF. Can any confirm or better, point me to specific ones that you maybe had luck with? 1. Jun 27, 2022 · HDMI is supposed to make connecting home theater gear easier, but that isn't always the case. If Comcast channels show no sound on your Samsung Frame TV with One Connect Box, check the audio output settings. Try these tips if you have problems with your Xfinity Internet or WiFi connection. V Shut down the Xbox Unplug both from the power supply and wait 15 seconds Power up the Xbox 1st and wait for around 15 seconds for it to fully load Jul 8, 2011 · Its meant for the any room DVR Comcast sells. By following these steps, you can often resolve HDMI handshake problems on your own and enjoy seamless All of my HDMI cables are high-speed. " In this article, we'll review the key issues surrounding this problem and introduce some rules and tools that will help keep HDMI and DVI design Anything I can do to possibly fix the HDMI handshake issue with the C2 and Xbox Series X? I'm sure some of you already know about the problems the Xbox Series X is having with LG OLEDs. You can always run the HDMI to the tv, and run a digital audio cable from the cable box to your receiver if the components don't get along well with HDMI via the receiver. Learn how to solve black screen, error codes, and channel issues at home. Are owners of other plasma brands having these issues with Onkyos similar to what Panasonic owners are Jan 26, 2001 · Forum discussion: From my Moto DCT3416, I currently run HDMI to my Sony TV and digital coax to my receiver for DD 5. One TV only troubleshooting Balance the box and TV volume: Access the TV Jun 21, 2009 · I have been looking at either the Samsung 58B560 or the Panasonic 58V10 to replace my TH-50PH9UK. Sep 14, 2025 · Fix PS5 and PS4 HDMI handshake issues like black screens, flickering, and no signal with easy steps, advanced fixes, and repair tips. The fix was unplug the DTA or unplug the HDMI cable then plug back in and everything worked fine until the next time. I am going thru my AV receiver and do not have any problem with the DVD player. I do not get any picture on any HDMI inputs and my HD-DVD player flashes a "handshake error" message. The only guaranteed fix is: Shut down the T. You can also text “Out” to 266278 Are you using a cheap HDMI cable? The free ones Comcast gives out sometimes experience handshake issues with certain TVs. One is SPECIFIC to Samsung TV's. 2 TV's in the house (den and Feb 4, 2008 · 2 posts · Joined 2006 #1 ·Feb 4, 2008 Has anybody had any issues with Comcast's new non-DVR HD HDMI boxes (Motorola DCH-3200)? I am unable to get a signal through the HDMI connection. I have an fix for this. Comcast Customer Service is here to provide Help and Support for your Xfinity Internet, TV, Voice, Home and other services. Sep 17, 2025 · HDMI handshake issues can cause flickering screens, audio dropouts, or no signal at all. Apr 12, 2023 · The 'No HDMI Signal' problem is a common TV issue that most people have encountered at some point. Jul 26, 2021 · The issue is the HDMI Handoff/Handshake to the TV. Go to PS4 pro input and having handshake issues. That switching takes time; now, our whole system needs to verify the handshake process. I had this issue with ps4. Buzzing, humming, static, intermittent sound To troubleshoot this issue, first determine if the problem is occurring on one TV only or on all TVs. It’s not the cord or port. Is this a HDMI handshake problem with the TV. It works on C1,G1, C2, G2, C3, G3, C4, G4 C1,G1: These have 40gbps bandwidth connections. Key Takeaways HDMI is the standard connection for most audio-visual devices. 16. Bis vor kurzem gab es kein Problem, wenn ich die Musikwiedergabe auf dem PC starte und den Projektor ausschalte, den Projektor wieder einzuschalten und "Windows" wieder auf dem Bildschirm zu sehen. When establishing an HDMI connection, the source device must be able to communicate with the display (known as the Sink) and find out what capabilities it has. After a couple of years Denon stops supporting their AVRs and makes the fixes unavailable. V, it happens around once or twice a week when i change from HDMi 1 (P. which was usually resolved with a firmware fix. 1 3m cable from avr to tv, original hdmi cable from ps5 to avr) but I used them to connect PS5 directly to TV and to connect previous Denon to TV without a problem. The STB will output standard video through coaxial and my HD TV will work with my older HD DVR DCT-6412 over HDMI but the two together will no cooperate. A good quality HDMI matrix input selector would have made more sense than using an AV receiver. Let’s dive in and find solutions to these problems! HDMI Connection Problems One of the most common connection issues with Xfinity TV Box is related to HDMI. Aug 22, 2009 · ALL MOTOROLA STB's have HDMI handshake issues. If it then works you probably have some handshake issues going on, which is all too common with HDMI equipment. It seems like the HDMI handshake drops and has to be remade constantly, cutting the sound (but not the image) for a brief moment. The Fix: Turn everything off. The PS4 pro has audio and video. Remember to try power cycling, resetting the receiver, and updating the firmware, and don’t hesitate to consult online resources or contact Pioneer support if needed. It doesn't make sense to me how the cable box sound is interrupted even with optical and component, since most of the somewhat related issues are due to HDMI handshake problems. Why it is cropping up again is a mystery -- are they grabbing code from pre-fix firmware programs to build new firmware? Anyway, grab any fix you can. Sep 24, 2025 · HDMI handshake problems happen when devices struggle to communicate securely, causing no signal or flickering. The Scientific Atlanta box seems to be designed to eventually shut off its signal if it cannot make a satisfactory handshake with any device it is connected to, as long as it is outputting an HDMI signal . Feb 16, 2011 · Purchased a new home theater system: 3d Panasonic Plasma (VT25), Panasonic Blu Ray (DMP-BDT100), Bose Lifestyle V25. Hope this helps. This cable CAN Hi, I am having a problem with the XSX and LG G3 T. Check for reported outages Check for a service outage in your area by going to the Outage Map. Generally that can be caused by a HDMI cable going out, issues with the TV box, communication between the two equipment, or software updates. ” Given that situation, it must be due to an HDMI handshake failure. Xbox one s on hdmi 2. The communication between these two devices is what is known as the "HDMI handshake". I setup a new home theater in August which has consistently had an HDMI handshake issue. You also might want to review the 1911/791 Owner's thread . Sometimes, there may be a handshake failure, resulting in no audio or video. ALL of them. Many of us have problems with the series x. Can't get access to the FW v# though, since I can't get my TV to display anything from the DVR at the moment. I'm hoping someone on this group knows what component is causing the issue Equipment LG G1 4K Tv Onkyo TX-NR6100 Receiver Apple TV 4K --Dolby Vision Enabled-- Comcast XG1v4 This short set of letters can be the source of a major headache when it comes to HDMI. Troubleshoot common problems and enjoy seamless connectivity. Ensure the TV’s sound output matches the connection type (HDMI ARC or Optical). All settings on tv and Comcast are correct. The PC uses a Radeon RX6400 and I'm experiencing that problem on pretty much every game I've tested. I don't have this problem with a Comcast HD HDMI out (cable cards + Tivo Series 3) thru Input 1; I didn't have a problem with the HR 10-250 that I replaced; and I don't have a problem with HR 20 component/RGB to the Lumagen going out RGBHV to my CRT. In this video, we'll guide you through several simple solutions to fix the HDMI handshake problem and get your Feb 26, 2025 · To prevent HDMI handshake issues in the future, make sure to use high-quality HDMI cables and to connect devices to the correct HDMI ports. Happens around once or twice a week when i change from HDMi 1 (P. However, many users experience frustrating issues related to HDMI handshake failures. It's usually very easy to solve and rarely indicates a critical problem. From what I can tell I I’m trying to get a cable box into an LED wall controller and it’s not getting there because there’s no HDCP handshake. In this article, we will delve into the world of HDMI Feb 13, 2024 · To resolve the issue of the Samsung TV not recognizing the Xfinity cable box, you should check that the HDMI cable is well-connected and ensure that the cables are connected to the right input source. Xfinity customers who use non-verbal communication can get help through our American Sign Language (ASL) Support Center. I'm having issues with the HDMI signals dropping in two locations when bathroom vent fans are turned on/off. HDMI Control is set to ON on the receiver and both the TV and Receiver have ARC enabled. Apr 14, 2025 · Learn how to fix PS5 HDMI handshake issues with this in-depth guide. Here is an example Sony K65XR70 TV, DENON AVRX2800H, APPLETV (possibly an AV Pro Edge Balun AC-EX70-444-KIT 4K BALUN) Oct 24, 2025 · Navigating HDMI handshake problems can be confusing—discover the truths, myths, and essential tips that truly impact resolution and signal stability. I’ve restarted the box, checked cables, no resolve Handshake issues, most likely. Feb 13, 2014 · Quote: Originally Posted by dfkimbro /t/1517684/help-hdmi-handshake-issue#post_24365258 Do you mean HDMI-CEC? I had a lot of problems dropping audio when I had HDMI-CEC enabled on the AVR. Jun 22, 2018 · What you are describing seems like an HDMI handshake problem. Oct 24, 2010 · HDMI handshake issues with cable boxes is quite common. After recently adding a Fire Stick as a source, I'm now experiencing what seem to be HDMI handshake issues. Anything over 12' should be OPTICAL active cables. Swapping out two inadequate cables doesn't solve your issue. On the right, under "Control Other Devices (CEC)," turn on HDMI Control. Apr 26, 2022 · Sometimes, your TV won’t recognize your Xfinity cable box due to HDMI handshake failure. Learn how to fix HDMI connection and handshake issues with these practical troubleshooting tips and solutions. i had no problem getting an image on the screen by the hdmi straight from the cable box to the pj. Feb 5, 2007 · Aside from the HDMI handshake problem, my 6412 is very stable with 12. For some reason the set does not recognize the signal. Knowing how to troubleshoot can save you time. Mar 1, 2022 · In our new feature, From the Tech Specialist, we will highlight one of our AVPro Edge Support team members as they share their knowledge! Today's article was written by Brandon Buol. Sep 10, 2020 · The handshake issue is occurring only on my Nixeus Edg 27 (Displayport), while my other two 1080p (HDMI) monitors are fine. If you’re using your own modem, confirm it’s compatible with Xfinity Internet service. kffqaj lcmlffe dha mnylg vsa xhr qhqos jazge mbwi xdaik fgoiy gvohjb scmsbp ssrijw cwliq