z0ki Posted March 28, 2022 Share Posted March 28, 2022 (edited) I've got my Win10 VM working (finally) with GPU passthrough, but I am finding that on the odd occasion that I will lose HDMI signal and nothing I do will get it back (even a server reboot) For instance when I turned on HDR in Windows the screen went black but then I get shown a No signal message. I got a HDMI cable connected to my LG C9 OLED - and works brilliantly when it does but its just this niggling issue that is hampering my experience. Logs do not show any faults either on the VM/Server side. Is this something that is a common occurrence? Anyone know of a fix? Edited March 29, 2022 by z0ki Quote Link to comment
Solution z0ki Posted March 29, 2022 Author Solution Share Posted March 29, 2022 So this is embarrassing. The issue was the HDMI cable is not a HDMI 2.1 or (2.0 i believe) hence I was losing signal. Tested with a known HDMI 2.1 cable and viola! Picture. I been ripping my hair out over this for days thinking something in my VM or an issue with GPU passthrough has been happening but nope. Just my idiocy lol. 1 Quote Link to comment
ghost82 Posted March 29, 2022 Share Posted March 29, 2022 Don't be so rude with yourself Failures due to cables are difficult to see, especially if they look good from the outside, one should always have spare cables (I don't) to try. Quote Link to comment
z0ki Posted March 29, 2022 Author Share Posted March 29, 2022 2 minutes ago, ghost82 said: Don't be so rude with yourself Failures due to cables are difficult to see, especially if they look good from the outside, one should always have spare cables (I don't) to try. Haha i know right. I didn't even think it could be the HDMI cable and something just clicked to me that said hang on might be the cable that can't output HDR to a 4K res. Simple fix in the end but wish I saw this before i got more grey hair 😋 1 Quote Link to comment
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