Kernel 5.14-rc4 and -rc5 give the following message on boot:
[ 2.533418] i915 0000:00:02.0: Device initialization failed (-19)
[ 2.533472] i915 0000:00:02.0: Please file a bug on drm/i915; see
https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs
for details.
And when I suspend the machine, the screen stays dark when resuming.
Bisected to the following commit:
commit 69de4421bb4c103ef42a32bafc596e23918c106f
Author: Jason Ekstrand <[email protected]>
Date: Wed Jul 21 10:23:57 2021 -0500
drm/ttm: Initialize debugfs from ttm_global_init()
And reverting this fixes the problem.
This is on a Thinkpad T520, and "lspci" tells me the following about the
graphics card:
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller (rev 09)
.config is attached
--
Hilsen Harald
Harald Arnesen [13.08.2021 13:10]:
> Kernel 5.14-rc4 and -rc5 give the following message on boot:
>
> [ 2.533418] i915 0000:00:02.0: Device initialization failed (-19)
> [ 2.533472] i915 0000:00:02.0: Please file a bug on drm/i915; see
> https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs
> for details.
>
> And when I suspend the machine, the screen stays dark when resuming.
Seems to have been fixed in HEAD - a bit strange, since the commit still
reverts cleanly.
--
Hilsen Harald