linux-kernel - Re: [REGRESSION] Re: 6.13-rc1 graphics fail -> resolved

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Message-ID: <1c418b7b67b1e75bed5068a86165939648bd1952.camel@sapience.com>
Date: Mon, 13 Jan 2025 11:48:28 -0500
From: Genes Lists <lists@...ience.com>
To: Ville Syrjälä <ville.syrjala@...ux.intel.com>
Cc: regressions@...ts.linux.dev, linux-kernel@...r.kernel.org, 
	lucas.demarchi@...el.com, thomas.hellstrom@...ux.intel.com, 
	rodrigo.vivi@...el.com, airlied@...il.com, tzimmermann@...e.de, 
	dri-devel@...ts.freedesktop.org, intel-xe@...ts.freedesktop.org
Subject: Re: [REGRESSION] Re: 6.13-rc1 graphics fail -> resolved

On Sat, 2025-01-04 at 06:06 -0500, Genes Lists wrote:
> On Fri, 2024-12-13 at 07:14 -0500, Genes Lists wrote:
> > On Tue, 2024-12-03 at 06:34 -0500, Genes Lists wrote:
> > > On Tue, 2024-12-03 at 11:16 +0200, Ville Syrjälä wrote:
> > > > > ...
> > > 
> > > > Probably https://gitlab.freedesktop.org/drm/i915/kernel/-
> > > > /issues/13057
> > > > 
> > > Very helpful.
> > > 
> > > I tested your patch set on Linus' tree commit
> > > cdd30ebb1b9f36159d66f088b61aee264e649d7a :
> > > 
> > >     https://patchwork.freedesktop.org/series/141911/
> > > 
> > > and confirm that this fixes the problem 
> > > 
> > > Thank you.
> > > 
> > > 
> > 
> > Just a CC to regressions list for tracking.
> > 
> > First report here: 
> > https://lore.kernel.org/lkml/3b097dddd7095bccabe6791b90899c689f271a
> > 35.c
> > amel@...ience.com/
> > 
> > Fixed by patch set as noted above, but not yet in mainline or
> > linux-
> > next.
> > 
> > Thank you again Ville for quickly coming up with a fix.
> > 
> 
> Follow up to check on where things stand with getting the fix into
> mainline? 
> 
> Obviously it would be really good to get this fixed before 6.13 gets
> released.
> 
> Thanks and happy 2025!
> 
> 

Update - I no longer see this problem.

Quick test (meaning I booted machine once) using:

   linux 6.13-rc7  (previously 6.13-rc1 
   mesa 24.3.3     (previously 24.3.0)

Works fine.

I note that the patches
(https://patchwork.freedesktop.org/series/141911/) are not in the this
kernel. i.e. the file drivers/gpu/drm/i915/display/intel_fb.c still has
around line 1694 or so:

  if (IS_ALIGNED(fb->base.offsets[i], PAGE_SIZE))

whereas the patch changes PAGE_SIZE to 64.

I have not yet tracked down what has changed but wanted to report back,
since 6.13 is not far off.

Could it be other kernel patches or perhaps changes in mesa itself?
Thanks for resolving it. 

I will continue to test and report back if I see anything different.

gene

-- 
Gene


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