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From: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
To: Thorsten Leemhuis <regressions@leemhuis.info>
Cc: stable@vger.kernel.org, regressions@lists.linux.dev,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Slade Watkins <srw@sladewatkins.net>, Jerry Ling <jiling@cern.ch>
Subject: Re: Regression on 5.19.12, display flickering on Framework laptop
Date: Mon, 3 Oct 2022 20:45:18 +0300	[thread overview]
Message-ID: <YzsfrkJcwqKOO+E/@intel.com> (raw)
In-Reply-To: <e3e2915d-1411-a758-3991-48d6c2688a1e@leemhuis.info>

On Sat, Oct 01, 2022 at 12:07:39PM +0200, Thorsten Leemhuis wrote:
> On 30.09.22 14:26, Jerry Ling wrote:
> > 
> > looks like someone has done it:
> > https://bbs.archlinux.org/viewtopic.php?pid=2059823#p2059823
> > 
> > and the bisect points to:
> > 
> > |# first bad commit: [fc6aff984b1c63d6b9e54f5eff9cc5ac5840bc8c]
> > drm/i915/bios: Split VBT data into per-panel vs. global parts Best, Jerry |
> 
> FWIW, that's 3cf050762534 in mainline. Adding Ville, its author to the
> list of recipients.

I definitely had no plans to backport any of that stuff,
but I guess the automagics did it anyway.

Looks like stable is at least missing this pile of stuff:
50759c13735d drm/i915/pps: Keep VDD enabled during eDP probe
67090801489d drm/i915/pps: Reinit PPS delays after VBT has been fully parsed
8e75e8f573e1 drm/i915/pps: Split PPS init+sanitize in two
586294c3c186 drm/i915/pps: Stash away original BIOS programmed PPS delays
89fcdf430599 drm/i915/pps: Don't apply quirks/etc. to the VBT PPS delays if they haven't been initialized
60b02a09598f drm/i915/pps: Introduce pps_delays_valid()

But dunno if even that is enough.

This bug report is probably the same thing:
https://gitlab.freedesktop.org/drm/intel/-/issues/7013

> 
> Did anyone check if a revert on top of 5.19.12 works easily and solves
> the problem?
> 
> And does anybody known if mainline affected, too?
> 
> Ciao, Thorsten
> 
> 
> > On 9/30/22 07:11, Slade Watkins wrote:
> >> Hey Greg,
> >>
> >>> On Sep 30, 2022, at 1:59 AM, Greg KH <gregkh@linuxfoundation.org> wrote:
> >>>
> >>> On Fri, Sep 30, 2022 at 06:37:48AM +0200, Greg KH wrote:
> >>>> On Thu, Sep 29, 2022 at 10:26:25PM -0400, Jerry Ling wrote:
> >>>>> Hi,
> >>>>>
> >>>>> It has been reported by multiple users across a handful of distros
> >>>>> that
> >>>>> there seems to be regression on Framework laptop (which presumably
> >>>>> is not
> >>>>> that special in terms of mobo and display)
> >>>>>
> >>>>> Ref:
> >>>>> https://community.frame.work/t/psa-dont-upgrade-to-linux-kernel-5-19-12-arch1-1-on-arch-linux-gen-11-model/23171
> >>>> Can anyone do a 'git bisect' to find the offending commit?
> >>> Also, this works for me on a gen 12 framework laptop:
> >>>     $ uname -a
> >>>     Linux frame 5.19.12 #68 SMP PREEMPT_DYNAMIC Fri Sep 30 07:02:33
> >>> CEST 2022 x86_64 GNU/Linux
> >>>
> >>> so there's something odd with the older hardware?
> >>>
> >>> greg k-h
> >> Could be. Running git bisect for 5.19.11 and 5.19.12 (as suggested by
> >> the linked forum thread) returned nothing on gen 11 for me.
> >>
> >> This is very odd,
> >> -srw
> > 
> > 

-- 
Ville Syrjälä
Intel

  parent reply	other threads:[~2022-10-03 17:45 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-30  2:26 Regression on 5.19.12, display flickering on Framework laptop Jerry Ling
2022-09-30  4:37 ` Greg KH
2022-09-30  5:59   ` Greg KH
2022-09-30 11:11     ` Slade Watkins
2022-09-30 11:22       ` Greg Kroah-Hartman
2022-09-30 11:56         ` Slade Watkins
2022-09-30 12:26       ` Jerry Ling
2022-09-30 12:49         ` Slade Watkins
2022-10-01 10:07         ` Thorsten Leemhuis
2022-10-01 12:34           ` Hans de Goede
2022-10-03 17:45           ` Ville Syrjälä [this message]
2022-10-03 17:48             ` Ville Syrjälä
2022-10-03 17:48               ` [Intel-gfx] " Ville Syrjälä
2022-10-03 18:28               ` Thorsten Leemhuis
2022-10-03 18:28                 ` [Intel-gfx] " Thorsten Leemhuis
2022-10-04 12:35                 ` Ville Syrjälä
2022-10-04 12:35                   ` [Intel-gfx] " Ville Syrjälä
2022-10-04 12:57                   ` Greg Kroah-Hartman
2022-10-04 12:57                     ` [Intel-gfx] " Greg Kroah-Hartman
     [not found]                 ` <9aae6b15-265a-4ef9-87c1-83dfe5094378@smtp-relay.sendinblue.com>
2022-10-04 13:40                   ` Greg Kroah-Hartman
2022-10-04 13:40                     ` Greg Kroah-Hartman
2022-10-04 13:44                     ` Ville Syrjälä
2022-10-04 13:44                       ` [Intel-gfx] " Ville Syrjälä
2022-10-04 14:28                       ` Greg Kroah-Hartman
2022-10-04 14:28                         ` [Intel-gfx] " Greg Kroah-Hartman
2022-09-30  5:10 ` Thorsten Leemhuis
2022-09-30 13:05   ` Jerry Ling
2022-09-30 15:02     ` Greg KH
2022-10-03 16:42       ` David Matthew Mattli

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