Hi, On 30-09-16 16:51, Laszlo Ersek wrote: > On 09/30/16 12:35, Hans de Goede wrote: > >> Attached are 2 patches against the xserver which should fix this, >> please give them a try. > > Sorry about the delay. > > The patches don't seem to fix the issue for me. Please see the Xorg log > attached. > > I tested the patches as follows. Given that my bisection had been done > in a Fedora 24 guest, using > > xorg-x11-server-1.18.4-4.fc24 > http://koji.fedoraproject.org/koji/buildinfo?buildID=794494 > > I now rebuilt the guest kernel exactly at the failing commit (a325725 > "drm: Lobotomize set_busid nonsense for !pci drivers"), and first > reproduced the issue with the above X server. > > Then, I ported your patches to "xorg-server-1.18.4" (using the upstream > xserver tree), and rebuilt the Fedora package with the backport. For the > backport, I had to cherry-pick the following two patches from master first: > > 1 ca8d88e50310 xfree86: recognize primary BUS_PCI device in > xf86IsPrimaryPlatform() > 2 ea91db4b8331 config: fix GPUDevice fail when AutoAddGPU off + BusID > > This way your patches applied cleanly. (Cherry pick #1 above is actually > necessary for semantics, while cherry pick #2 is needed for a clean > context only, and has no impact for this test.) > > That is, in total, I added the following four patches to the Fedora 24 > package: > > 1 xfree86: recognize primary BUS_PCI device in xf86IsPrimaryPlatform() > 2 config: fix GPUDevice fail when AutoAddGPU off + BusID > 3 xfree86: Make adding unclaimed devices as GPU devices a separate step > 4 xfree86: Try harder to find atleast 1 non GPU Screen > > You can find the scratch build that I used for testing here: > > xorg-x11-server-1.18.4-4.hans_bz1366842_2.fc24 > http://koji.fedoraproject.org/koji/taskinfo?taskID=15875087 > > Another reason I used F24's X server as basis, rather than upstream > HEAD, is that Fedora 24 is pretty young, and it's already on kernel > 4.7.4, and I believe it will soon move to kernel 4.8, without > (necessarily) rebasing its X server package to upstream. IOW the kernel > upgrade to 4.8 will break X in Fedora 24 too, and then I expect the > Fedora X maintainers would have to cherry pick those two patches as > dependencies just the same. > > To summarize, the patches don't seem to help. I shall nonetheless thank > you for spending your Friday on this!
Hmm, do you have a xorg.conf file lying around somewhere, the message about the xserver not being able to find an entry for screen 0 does not make sense ... Anyways, Monday is another day we can look at this ... Regards, Hans
