Question HDMI Splitter has stopped working ?

[gamerryu]

Hello everyone,
I have a problem with my current display setup.

PC (Geforce 3080FE) is connected to main monitor using display port. On the HDMI port of the GPU a very short HDMI cable is connected to an HDMI splitter. One part goes to the second PC monitor, the other part connects to a 5m HDMI cable, which connects to a repeater which connects to another 5m cable which connects to a receiver which connects to my TV.

This setup is new. Before that the HDMI cable from the CPU connected to a splitter which connected to a 10m HDMI cable which connected to the receiver.

On my PC monitors I use a solution of 2560x1440, since I usually prefer performance over graphic anyway (also the monitors do not support more).

This exact setup was working for ~3 years just fine. I used my primary monitor and had it extended on the second HDMI monitor which was mirrored to the TV.

However, suddenly it stopped working. From all I know this was after updating my BIOS (ROG STRIX X570-E Gaming Mainboard), but I'm not 100% it was really the same day and it doesn't really seem connected.

I started to randomly lose the connection between the TV and the PC. One moment it worked fine, next moment TV stopped detecting the HDMI signal completely OR downscaled my resolution to 720p on both monitors with no option to change it again without physically disconnecting the cables first.

In the beginning I assumed some hardware malfunction which I did all the changes but the issue still persists.

I then checked the receiver and the HDMI input-ports, but every single one of them was working fine as well with every other piece of hardware I used (Playstation, Switch...)

I'll be honest, I'm losing my mind over this. The GPU seems to be working fine as well and I don't think it's a resolution issue either, because 1) it was working fine for years 2) I manage to get the connection working and can see the mirrored screen, until it loses connection again seemingly randomly.

Can anyone help me out here?

 

[JohnBonhamsGhost]

many splitters, adapters, etc have these types of issue.
even if they seem to work fine for any certain amount of time they will often fail due to lower quality materials.
many times they will even just have trouble keeping up a higher bandwidth signal so higher resolutions, HDR, etc will begin to stop working properly.

if all displays work fine on a single connection without the splitter than you know it is the problem.
same with any "signal repeater".

 

[dwd999]

Hello everyone,
I have a problem with my current display setup.

PC (Geforce 3080FE) is connected to main monitor using display port. On the HDMI port of the GPU a very short HDMI cable is connected to an HDMI splitter. One part goes to the second PC monitor, the other part connects to a 5m HDMI cable, which connects to a repeater which connects to another 5m cable which connects to a receiver which connects to my TV.

This setup is new. Before that the HDMI cable from the CPU connected to a splitter which connected to a 10m HDMI cable which connected to the receiver.

On my PC monitors I use a solution of 2560x1440, since I usually prefer performance over graphic anyway (also the monitors do not support more).

This exact setup was working for ~3 years just fine. I used my primary monitor and had it extended on the second HDMI monitor which was mirrored to the TV.

However, suddenly it stopped working. From all I know this was after updating my BIOS (ROG STRIX X570-E Gaming Mainboard), but I'm not 100% it was really the same day and it doesn't really seem connected.

I started to randomly lose the connection between the TV and the PC. One moment it worked fine, next moment TV stopped detecting the HDMI signal completely OR downscaled my resolution to 720p on both monitors with no option to change it again without physically disconnecting the cables first.

In the beginning I assumed some hardware malfunction which I did all the changes but the issue still persists.

I then checked the receiver and the HDMI input-ports, but every single one of them was working fine as well with every other piece of hardware I used (Playstation, Switch...)

I'll be honest, I'm losing my mind over this. The GPU seems to be working fine as well and I don't think it's a resolution issue either, because 1) it was working fine for years 2) I manage to get the connection working and can see the mirrored screen, until it loses connection again seemingly randomly.

Can anyone help me out here?

Are you using a splitter which drives both monitor and TV at the same time? Or would it be better if you used a KVM type of switch to change between one and the other? You also might want to consider a fiber optic cable for the longer run:

https://www.amazon.com/Cable-Matter...electronics&sprefix=kvm+switch,aps,131&sr=1-2

https://www.amazon.com/Cable-Matters-Certified-Fiber-Active/dp/B08GMC7C91/ref=sr_1_11?c=ts&dib=eyJ2IjoiMSJ9.PGM9GtroG-I4uIzXOjZlwvTr6fUw92ZNbCMGgWawIwy9nB9bnEcuJnqekXNbWD6pt4MAMvr9VeuhXt5TzNiHa6n0gc8_CiqSTLlobbfvK7ELeLgENbC76daFV3na8xkInDm7ylFuce0xD4cvd5DpRTLsZhvFagpUaDk_rZTaPaY9GkSAp04aQa9ZKdGK_j-kgrqp7fKImI8I6CX1NzHx-nJfjGg4fhk9km6pmQG5S8hn-rqYX20fkydG7AsG77E4.2yRGkowg4qoV3k4OXCVyhFvjr42F1W4rBs5CcGnnuo0&dib_tag=se&keywords=HDMI+Cables&qid=1718396181&refinements=p_123:6973,p_n_feature_sixteen_browse-bin:119746485011&rnid=119746477011&s=tv&sr=1-11&ts_id=202505011&th=1