[Intel-gfx] BUG in i915/i915_pci.c, commit fe0f1e3

[Imre Deak]

On Thu, Apr 29, 2021 at 06:48:39PM +0300, Ville Syrjälä wrote:
> On Thu, Apr 29, 2021 at 11:13:53AM +0300, Jani Nikula wrote:
> > On Wed, 28 Apr 2021, Mario Hüttel <mario.huettel at gmx.net> wrote:
> > > Hi,
> > >
> > > yes. The bug is still present with a recent kernel.
> > > I got the tip from Imre Deak to try out
> > >
> > > 7962893ecb853 ("drm/i915: Disable runtime power management during
> > > shutdown")
> > >
> > > This fixes the issue for me. Do I still have to file a bug report or
> > > will this patch eventually find its way upstream?
> > 
> > That's in Linus' upstream now, but not in any release yet.
> > 
> > Imre, Ville, should we ask for a Cc: stable?
> 
> I would say yes, unless Imre has a good reason against it.

It fixed a BIOS issue on TGL, but yes I suppose other platforms can be
also affected.

> commit fe0f1e3bfdfe ("drm/i915: Shut down displays gracefully on
> reboot") seems to be in 5.11, so that's as far back it needs to
> go.

Ok, can send it for 5.11.

> > BR,
> > Jani.
> > 
> > 
> > >
> > > Thanks
> > > Mario
> > >
> > > On Mon, 2021-04-26 at 17:47 +0300, Jani Nikula wrote:
> > >> On Sat, 13 Mar 2021, Mario Hüttel <mario.huettel at gmx.net> wrote:
> > >> > Hello,
> > >> >
> > >> > I want to report a bug. I have a PC with Intel i7-6700K processor
> > >> > (with
> > >> > integrated graphics) and an AsRock Fatal1ty Z170 Gaming K6
> > >> > mainboard. I
> > >> > use the CPU's integrated graphics.
> > >> > My system is Archlinux with Kernel v5.11.6.
> > >> >
> > >> > Using this setup, my PC works normally. However, when I shut it
> > >> > down,
> > >> > the power is not cut. Fans and LEDs keep spinning. I couldn't
> > >> > detect
> > >> > any other problem when shutting down. Drives etc. stop as expected
> > >> > and
> > >> > the video is blank. Even after waiting several hours, the system
> > >> > doesn't power down.
> > >> > I haven't yet found any other people on the internet that have the
> > >> > same
> > >> > bug.
> > >> >
> > >> > I used git bisect to find the commit that causes this behavior on
> > >> > my
> > >> > machine. The result is: fe0f1e3bfdfeb53e18f1206aea4f40b9bd1f291c is
> > >> > the
> > >> > first bad commit.
> > >> >
> > >> > I hope this is the correct mailing list for this issue.
> > >> >
> > >> > Let me know if you need more information or someone to test it.
> > >>
> > >> This seems to have fallen between the cracks, apologies. Is this
> > >> still
> > >> an issue with newer kernels? If yes, please file a bug at [1].
> > >>
> > >> BR,
> > >> Jani.
> > >>
> > >>
> > >> [1]
> > >> https://gitlab.freedesktop.org/drm/intel/wikis/How-to-file-i915-bugs
> > >>
> > >
> > >
> > 
> > -- 
> > Jani Nikula, Intel Open Source Graphics Center
> 
> -- 
> Ville Syrjälä
> Intel