Hey everyone, I recently got my hands on an RTX 5080 and I've been enjoying gaming on my AW3225QF monitor via DisplayPort (4K 240Hz, HDR, and VRR). However, I decided to test it out on my LG C4 TV, so I bought a 3m HDMI 2.1 cable that was certified for high-quality use. But I'm facing a major issue: the HDMI connection is flickering with strange colors and even going completely black for several seconds, making it practically unusable. The only resolution that seems to work without issues is 4K at 60Hz.
To troubleshoot, I've set the GPU to PCIE 4.0, tried using the internal GPU of my 9800x3d which handled 4K 120Hz just fine, and updated all drivers, BIOS, etc. I'm starting to wonder if I should RMA my card, since DisplayPort works perfectly and I haven't had luck with HDMI. Has anyone experienced something similar? Also, I found that using the HDMI on my monitor gives the same problem — I can't even get past 4K 60Hz with the included HDMI cable. Any advice?
2 Answers
Have you considered using DDU to completely uninstall and then reinstall your GPU drivers? That might clear up the issues you're facing. Check this video for a guide: [link].
Honestly, I don't think it's just the cables causing the issue since both integrated graphics and my laptop can handle 4K 120Hz. It seems like something's up specifically with the GPU's HDMI functionality, which is odd. Definitely concerns about the RTX 5080 there!
Yeah, I’ve already tried both the studio and game-ready drivers. No luck there.