> > Happy to try out any suggestion/experiment.
> 1. Does i915.enable_psr2_sel_fetch=0 help?
No, no change that I can see.
Okay, so that is not the problem.
> 2. What X11 driver is Xorg using? If it is using Intel, does
> modesetting help? If it is using modesetting, does Intel help?
More full logs/notes can be found at Qubes-HCL-LENOVO-21CBCTO1WW-20220809-103412.yml · GitHub
I'm not sure how to interpret the logs, it looks to me like "intel no,
modesetting yes". Not sure how/what to change here, given a nudge in the
right direction I can try to explore it more.
That is what it looks like to me also.
> 3. Does HVM sys-gui-gpu work? What about PV (not PVH!) sys-gui-gpu?
I don't have a sys-gui-gpu at the moment, but will test that. This page
(GuiVM Configuration | Qubes OS) is still the most
relevant/recent description, right?
I think so? I don’t use sys-gui-gpu myself, and I will admit that there
are quite a few bugs when using it. Still, if it works, then the
possible parts of the code that could be to blame is much lower. If
sys-gui-gpu in PV mode works, then the problem is almost certainly the
userspace drivers (Mesa). If sys-gui-gpu in HVM mode works, but it
fails in PV mode, then the problem is likely in the way i915 and Xen
> If PV sys-gui-gpu with a dom0-provided kernel works, then the problem is
> almost certainly old dom0 userspace: either an old X server, old Mesa,
> or both. If you could build modern Mesa and/or X11 for dom0 and try
> again, that would be awesome.
Left for future reference, I'm taking baby steps here
Demi Marie Obenour (she/her/hers)
Invisible Things Lab