On Thu, Aug 11, 2022, 3:10 PM Martin Holst Swende <[email protected]> wrote:
> > On 8/11/22 11:38, Demi Marie Obenour wrote: > > 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 > (https://www.qubes-os.org/doc/guivm-configuration/) 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 > interact. > > > I have tested this now. When I boot, the problem remains. Opening the Qube > Manager shows that the sys-gui-gpu qube is not running. I tried starting it > from the manager, > and it led to immediate black screen, requiring a hard shutdown. The logs > for that qube are here: > > dom0 will kernel panic if the GPU is removed from it while in use. I > recommend preventing the i915 kernel module from being loaded in dom0 > via the dom0 kernel command line. > > > I've tried some variants now. Disabling i915 (by moving the driver flie) > doesn't do much. It boots up as usual, same problems, and if I try to boot > the sys-gui-gpu qube, it blackscreens and requires hard shutdown. > New development: I used the boot param: module_blacklist=i915 (and the drivers were also removed from the filesystem). This time, there were no graphics glitches. However, the sys-gui-gpu did not come up. I started a work -qube Firefox, thinking it maybe would kickstart the gui vm, but no. So maybe those gui-vm config steps do not fully enable it? I eventually (again) tried manually starting it, with the result of immediate blackscreen freeze. Not sure where that leaves me? I don't even know what the whole i915 thing is all about, what is it supposed to improve? -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/CANC2dUco%2BHrHq69a8_uKJCj-18D%2Ba_NbkQ54y5DQRsez9c4PUw%40mail.gmail.com.
