Bug#944350: RE: [External] Bug#944350: systemd: screen remains off after waking up from suspend

From	Mark Pearson <mpearson@lenovo.com>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#944350: RE: [External] Bug#944350: systemd: screen remains off after waking up from suspend
Date	2019-12-06 20:00 +0100
Message-ID	<zaqZz-1kJ-7@gated-at.bofh.it> (permalink)
References	(8 earlier) <z6pIK-336-13@gated-at.bofh.it> <z0cXT-6Os-5@gated-at.bofh.it> <z89Jw-5sL-3@gated-at.bofh.it> <z0cXT-6Os-5@gated-at.bofh.it> <z89Jw-5sL-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

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Hi Jiri,

I'm pretty sure it's not in 5.3.0-2. Are you sure? I can look again but I recently did put in a merge request to get it pulled into sid: https://salsa.debian.org/kernel-team/linux/merge_requests/188

Not sure if/when it will be accepted (it's only my 2nd attempt at doing this) but hopefully someone looks at it and thinks it's useful)

Mark

> -----Original Message-----
> From: Jiri Kanicky <j@ganomi.com>
> Sent: Saturday, November 30, 2019 6:56 AM
> To: 944350@bugs.debian.org
> Subject: Bug#944350: RE: [External] Bug#944350: systemd: screen remains
> off after waking up from suspend
> 
> Hi.
> 
> It seems that Debian 5.3.0-2-amd64 includes the code in the patch
> already and I still have the issue.
> 
> Jiri
> 
> On Mon, 25 Nov 2019 16:45:55 +0000 Mark Pearson
> <mpearson@lenovo.com> wrote:
> 
>  > Hi,
>  >
>  > I don't know if this is helpful but I recently debugged a similar
> issue on the Lenovo P1Gen2. There the problem is only with the
> integrated graphics and an OLED screen - we tracked it down to an issue
> in the i915 driver where it wasn't giving enough time for eDP link
> training. It turned out this was due to the driver using the wrong
> clocks after a suspend and resume .
>  >
>  > Intel recently up-streamed a fix (commit 2f216a85 - it went into
> 5.4-rc8)
>  >
>  > I'm working on doing a patch that I'm hoping to get into Debian to
> backport - just not done yet :) The patch is pretty small (I've attached
> it) so you might want to give it a go and see if it helps.
>  >
>  > Note - we did also test X1 extreme with OLED panel and didn't see a
> problem there....but it's a really subtle timing issue so some units
> might be more susceptible than others. Maybe worth a go?
>  >
>  > If it does make a difference let me know.
>  > Mark
>  >

Thread

Bug#944350: systemd: screen remains off after waking up from suspend Michael Biebl <biebl@debian.org> - 2019-11-08 16:30 +0100
  Processed: Re: Bug#944350: systemd: screen remains off after  waking up from suspend "Debian Bug Tracking System" <owner@bugs.debian.org> - 2019-11-08 16:50 +0100
  Bug#944350: systemd: screen remains off after waking up from suspend Jiri Kanicky <j@ganomi.com> - 2019-11-25 03:20 +0100
    Bug#944350: [External]  Bug#944350: systemd: screen remains off after waking up from suspend Mark Pearson <mpearson@lenovo.com> - 2019-11-25 17:50 +0100
      Bug#944350: RE: [External] Bug#944350: systemd: screen remains off after waking up from suspend Jiri Kanicky <j@ganomi.com> - 2019-11-30 13:10 +0100
        Bug#944350: RE: [External] Bug#944350: systemd: screen remains off after waking up from suspend Mark Pearson <mpearson@lenovo.com> - 2019-12-06 20:00 +0100
          Bug#944350: RE: Bug#944350: RE: [External] Bug#944350: systemd: screen remains off after waking up from suspend Jiri Kanicky <j@ganomi.com> - 2019-12-30 03:20 +0100
          Bug#944350: RE: Bug#944350: RE: [External] Bug#944350: systemd: screen remains off after waking up from suspend Jiri Kanicky <j@ganomi.com> - 2020-01-27 06:00 +0100

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