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Bug#792778: nouveau: screen sometimes remains blank after "xset dpms force off"

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  Bug#792778: nouveau: screen sometimes remains blank after "xset dpms force off" Salvatore Bonaccorso <carnil@debian.org> - 2021-05-08 21:40 +0200
    Processed: Re: Bug#792778: nouveau: screen sometimes remains  blank after "xset dpms force off" "Debian Bug Tracking System" <owner@bugs.debian.org> - 2021-05-08 21:40 +0200
    Bug#792778: nouveau: screen sometimes remains blank after "xset dpms force off" Vincent Lefevre <vincent@vinc17.net> - 2021-05-09 08:00 +0200
      Bug#792778: nouveau: screen sometimes remains blank after "xset dpms force off" Salvatore Bonaccorso <carnil@debian.org> - 2021-05-09 08:50 +0200

#71339 — Bug#792778: nouveau: screen sometimes remains blank after "xset dpms force off"

Control: tags -1 + moreinfo

Hi Vincent,

Sorry for continiously pestering you on older bugreports ;-)

On Wed, Sep 04, 2019 at 10:26:07PM +0200, Vincent Lefevre wrote:
> Control: reopen -1
> Control: found -1 5.2.9-2
> 
> On 2019-09-01 10:41:15 +0200, Vincent Lefevre wrote:
> > On 2015-07-18 14:52:03 +0200, Vincent Lefevre wrote:
> > > After I blank the screen of my laptop with "xset dpms force off", it
> > > is usually unblanked as expected when I type a key or move the mouse,
> > > but not always. When this occurs, the screen is no longer off, in the
> > > sense I can see some light on it, but nothing is displayed.
> > 
> > This is old, and with a few tests on the same machine after using
> > again nouveau since last night, I could not reproduce the problem
> > with a 5.2.0-2-amd64 kernel. Closing.
> 
> I could reproduce it again. Exactly the same issue.

So this was more recent. I guess still present as well on a recent
kernel? Did you got a chance to report it upstream and got some
feedback?

Regards,
Salvatore

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#71341 — Processed: Re: Bug#792778: nouveau: screen sometimes remains blank after "xset dpms force off"

Processing control commands:

> tags -1 + moreinfo
Bug #792778 [src:linux] nouveau: screen sometimes remains blank after "xset dpms force off"
Added tag(s) moreinfo.

-- 
792778: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=792778
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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#71351

On 2021-05-08 21:30:11 +0200, Salvatore Bonaccorso wrote:
> So this was more recent. I guess still present as well on a recent
> kernel?

I don't know, as nouveau became completely unusable for me and
I'm currently using the NVIDIA driver:

  https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/-/issues/534

> Did you got a chance to report it upstream and got some feedback?

No, but in general, there is no useful feedback from upstream
(no attempt to fix bugs).

-- 
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)

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#71356

Hi Vincent,

On Sun, May 09, 2021 at 07:49:55AM +0200, Vincent Lefevre wrote:
> On 2021-05-08 21:30:11 +0200, Salvatore Bonaccorso wrote:
> > So this was more recent. I guess still present as well on a recent
> > kernel?
> 
> I don't know, as nouveau became completely unusable for me and
> I'm currently using the NVIDIA driver:
> 
>   https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/-/issues/534
> 
> > Did you got a chance to report it upstream and got some feedback?
> 
> No, but in general, there is no useful feedback from upstream
> (no attempt to fix bugs).

Thanks for reporting back as well on this one. So I'm still a bit lost
what to do here and in similar cases.

Salvatore

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