- Jan 25, 2024
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Hi there!
I've recently purchased an RTX 3080 Ti and started using it. But when connecting it to my TV I get really weird problems.
Basically, if I use the HDMI port, the TV displays an "invalid signal" message 1 out of 2 times. When it works, it sometimes crash and makes the PC reboot or make the fans go loud even though no graphical program is running.
When I use the DisplayPort output using a DP to HDMI converted, I get this mess:
https://s3.amazonaws.com/i.snag.gy/wHTFnf.jpg
(Note: I'm using one of the default Windows backgrounds which is a pretty blue flower on a darker background, here we can show it's in grayscale, strangely shifted to the right, and with some green and red lines).
But when I plug the graphics card to my PC monitor, no problem. Weither I use the HDMI port with an HDMI cable, the DP port with a DP cable or with a DP to HDMI converter, it works fine. No problem at all, clean image, everything works fine.
It's only when I plug it into the TV that it becomes weird and crashes a lot. I tried disabling VRR (which was causing weird red and green artifacts), HDR and lowering the resolution, but nothing works.
Note that changing the resolution and enabling/disabling HDR when using DP to HDMI (which gives the weird mostly-grayscale picture) any change to the resolution or enabling/disabling HDR has no effect at all - the TV indicates it's receiving a 2160p signal no matter what.
The GPU seems to work correctly on Ubuntu, although the display is slightly cropped even with the correct resolution set (2160p). No idea if it comes from the OS.
Any idea what's causing this? I bought the card to someone who used it on a PC monitor and it also worked flawlessly (like on mine). I ensured the GPU was seated properly, I tried to remove it / add it again, the TV works perfectly fine with another GPU, the PSU is fine too (Corsair RM850x with a Ryzen 7900 non-X and no other PCIe device). I tried reinstalling the drivers, tried DDU, etc.
I'm using Windows 11, with latest Nvidia drivers, MSI A620M-E motherboard, DDR5 RAM, NVMe SSD. I'm using the latest BIOS for this GPU. I also updated my TV (LG C1) to get the latest update.
The HDMI & DP ports as well as the DP to HDMI adapter and the HDMI cable itself seem to work fine since they work without any problem on my monitor, it's only on the TV that it messes up. PSU is strong enough as I was able to run games both on my TV (when it works sometimes) and on my monitor flawlessly.
Thanks for your help!
I've recently purchased an RTX 3080 Ti and started using it. But when connecting it to my TV I get really weird problems.
Basically, if I use the HDMI port, the TV displays an "invalid signal" message 1 out of 2 times. When it works, it sometimes crash and makes the PC reboot or make the fans go loud even though no graphical program is running.
When I use the DisplayPort output using a DP to HDMI converted, I get this mess:
https://s3.amazonaws.com/i.snag.gy/wHTFnf.jpg
(Note: I'm using one of the default Windows backgrounds which is a pretty blue flower on a darker background, here we can show it's in grayscale, strangely shifted to the right, and with some green and red lines).
But when I plug the graphics card to my PC monitor, no problem. Weither I use the HDMI port with an HDMI cable, the DP port with a DP cable or with a DP to HDMI converter, it works fine. No problem at all, clean image, everything works fine.
It's only when I plug it into the TV that it becomes weird and crashes a lot. I tried disabling VRR (which was causing weird red and green artifacts), HDR and lowering the resolution, but nothing works.
Note that changing the resolution and enabling/disabling HDR when using DP to HDMI (which gives the weird mostly-grayscale picture) any change to the resolution or enabling/disabling HDR has no effect at all - the TV indicates it's receiving a 2160p signal no matter what.
The GPU seems to work correctly on Ubuntu, although the display is slightly cropped even with the correct resolution set (2160p). No idea if it comes from the OS.
Any idea what's causing this? I bought the card to someone who used it on a PC monitor and it also worked flawlessly (like on mine). I ensured the GPU was seated properly, I tried to remove it / add it again, the TV works perfectly fine with another GPU, the PSU is fine too (Corsair RM850x with a Ryzen 7900 non-X and no other PCIe device). I tried reinstalling the drivers, tried DDU, etc.
I'm using Windows 11, with latest Nvidia drivers, MSI A620M-E motherboard, DDR5 RAM, NVMe SSD. I'm using the latest BIOS for this GPU. I also updated my TV (LG C1) to get the latest update.
The HDMI & DP ports as well as the DP to HDMI adapter and the HDMI cable itself seem to work fine since they work without any problem on my monitor, it's only on the TV that it messes up. PSU is strong enough as I was able to run games both on my TV (when it works sometimes) and on my monitor flawlessly.
Thanks for your help!
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