glxinfo unable to open display

[merc]

glxinfo can't give any useful info because DISPLAY env variable is not set on proxmox host, even when logged in to actual console with a monitor and keyboard attached.

Forcing export $DISPLAY=:0 or whatever else doesn't help either.

Any ideas why is that?

 

[dcsapak]

Any ideas why is that?

did you start an x server?
the DISPLAY variable only references the running X instance

what information do you want to extract from 'glxinfo' ?

 

[merc]

did you start an x server?
the DISPLAY variable only references the running X instance

what information do you want to extract from 'glxinfo' ?

No, I hadn't started an x server. Good point, wasn't aware of that requirement, so that explains it.

As for what I need from glxinfo, it's troubleshooting amd driver's abysmal performance in lxc containers. ffmpeg doing simple h264 vaapi transcodes at literally 1.8 fps.

But I doubt that's got anything to do with proxmox specifically, so considering this question solved, thanks.