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Bug#944350: systemd: screen remains off after waking up from suspend

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  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

#65573 — Bug#944350: systemd: screen remains off after waking up from suspend

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Control: reassign -1 src:linux
Control: found -1 5.3.7-1

Am 08.11.19 um 16:18 schrieb Jiri Kanicky:
> Hi Michael.
> 
> Thanks a lot getting back to me and for your interest in this issue.
> 
> I would like to confirm that when I resume from suspend the machine
> seems to be running fine. I can SSH, if I connect external monitor the
> external monitor comes up and I can login and work as normal, however
> the internal OLED is turned off and I was not able to figure out how to
> turn it on.
> 
> I tried pm-suspend and experience the same issue. The screen stays black
> after resume.

Ok, thanks for the feedback. Given this, I'm reassigning this to the kernel.

> I tried xrandr with brightness 1, i tried display setting in KDE to turn
> it on, etc from the external monitor, but nothing seems to be helping.
> 
> When I reboot, the OLED works as normal.
> 
> Resume from hibernate also does not cause any issue.

If you have access to the system via SSH, it might help to provide a
dmesg output.

Regards,
Michael


-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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#65574 — Processed: Re: Bug#944350: systemd: screen remains off after waking up from suspend

Processing control commands:

> reassign -1 src:linux
Bug #944350 [systemd] systemd: screen remains off after waking up from suspend
Bug reassigned from package 'systemd' to 'src:linux'.
No longer marked as found in versions systemd/242-7.
Ignoring request to alter fixed versions of bug #944350 to the same values previously set
> found -1 5.3.7-1
Bug #944350 [src:linux] systemd: screen remains off after waking up from suspend
Marked as found in versions linux/5.3.7-1.

-- 
944350: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=944350
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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#65714

Further to the issue, when I set BIOS to discrete graphics only, I am 
experiencing the same issue when booting the system from shutdown state. 
The screen stays off, but the OS is booted and working.

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#65717 — Bug#944350: [External] Bug#944350: systemd: screen remains off after waking up from suspend

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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

> -----Original Message-----
> From: Jiri Kanicky <j@ganomi.com>
> Sent: Sunday, November 24, 2019 9:13 PM
> To: 944350@bugs.debian.org
> Subject: [External] Bug#944350: systemd: screen remains off after waking up
> from suspend
> 
> Further to the issue, when I set BIOS to discrete graphics only, I am
> experiencing the same issue when booting the system from shutdown state.
> The screen stays off, but the OS is booted and working.

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#65771 — 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
 >

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#65819 — Bug#944350: RE: [External] Bug#944350: systemd: screen remains off after waking up from suspend

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
>  >

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#65941 — Bug#944350: RE: Bug#944350: RE: [External] Bug#944350: systemd: screen remains off after waking up from suspend

Hi Mark.

I updated kernel to 5.4.0-1 and the issue is resolved. Thank you for 
your help. You were right :). Thx


Jiri

Linux superman 5.4.0-1-amd64 #1 SMP Debian 5.4.6-1 (2019-12-27) x86_64 
GNU/Linux


On Fri, 6 Dec 2019 18:47:05 +0000 Mark Pearson <mpearson@lenovo.com> wrote:

 > 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
 > > >
 >

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#66220 — Bug#944350: RE: Bug#944350: RE: [External] Bug#944350: systemd: screen remains off after waking up from suspend

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FYI Lenovo also pushed a fix into a BIOS.

CHANGES IN THIS RELEASE
   Version 1.28

[Important updates]
   Nothing

[New functions or enhancements]
- Supported BIOS password authentication before entering into MEBx.
- Updated Regulatory Information.

[Problem fixes]
- Fixed an issue where OLED panel might not trun on after resuming from sleep on Linux.

https://download.lenovo.com/pccbbs/mobiles/n2oul07w.txt


Regards, Jiri


On Fri, 6 Dec 2019 18:47:05 +0000 Mark Pearson <mpearson@lenovo.com> wrote:

 > 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
 > > >
 >

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