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Bug#870641: light-locker: screen stays black after closing and opening laptop lid

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On Mon, Jul 13, 2020 at 08:26:14PM +0200, Yves-Alexis Perez wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
> 
> On Mon, 2020-07-13 at 10:33 +0800, Aaron Lu wrote:
> > On Tue, May 12, 2020 at 11:13:52AM +0200, Yves-Alexis Perez wrote:
> > > I've also re-pinged upstream Linux and the patch should be included in the
> > > next Linux point release (hopefully 4.19.123), and which will then be
> > > included
> > > in Debian buster for the next Debian point release (hopefully 10.5). It's
> > > not
> > > tomorrow but still it should help at one point.
> > 
> > Just want to report that I have installed 5.6.0-0.bpo.2-amd64 from
> > buster-backport and now the display can be powered back on when I
> > pressed my keyboard or moved my mouse.
> 
> Could you try linux-image-4.19.0-10-amd64 from testing-proposed-updates and
> report back? It should include the fix.

It doesn't seem easy to install packages from testing-proposed-updates.
https://wiki.debian.org/TestingProposedUpdates doesn't tell me how to do
that and after adding:
deb http://some_debian_mirror/debian/ testing-proposed-updates main
'apt-cache search linux-image' doesn't show me linux-image-4.19.0-10-amd64..

Anyway, I downloaded this package directly from the mirror's pool:
linux-image-4.19.0-10-amd64-unsigned_4.19.131-2_amd64.deb
Is the above package correct?

And the good news is, this kernel also works fine :-)

> > I do not see any other problems right now, everything seems to work
> > fine, except one error message in dmesg everytime the display goes the
> > off-on cycle:
> > broken atomic modeset userspace detected, disabling atomic
> > But I guess it's a different problem and it doesn't seem to cause any
> > problem.
> 
> Actually the problem lies in the way Xorg uses atomic, and that's why the fix
> is to disable them. So if you see the message that means the fix is correctly
> applied.

I see, thanks for the explanation.

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Bug#870641: light-locker: screen stays black after closing and opening laptop lid Aaron Lu <aaron.lwe@gmail.com> - 2020-07-13 04:40 +0200
  Bug#870641: light-locker: screen stays black after closing and opening laptop lid Yves-Alexis Perez <corsac@debian.org> - 2020-07-13 20:40 +0200
    Bug#870641: light-locker: screen stays black after closing and opening laptop lid Aaron Lu <aaron.lwe@gmail.com> - 2020-07-14 05:00 +0200
      Bug#870641: light-locker: screen stays black after closing and opening laptop lid Yves-Alexis Perez <corsac@debian.org> - 2020-07-14 10:10 +0200
      Bug#870641: light-locker: screen stays black after closing and opening laptop lid David Farrier <farrier@iglou.com> - 2020-07-15 02:10 +0200
        Bug#870641: light-locker: screen stays black after closing and opening laptop lid Aaron Lu <aaron.lwe@gmail.com> - 2020-07-15 04:40 +0200
          Bug#870641: light-locker: screen stays black after closing and opening laptop lid Aaron Lu <aaron.lwe@gmail.com> - 2020-07-15 06:50 +0200

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