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

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On Tue, May 12, 2020 at 11:13:52AM +0200, Yves-Alexis Perez wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
> 
> On Mon, 2020-05-11 at 19:34 -0400, David Farrier wrote:
> > I see I am coming to this thread a bit late, but for what it is worth, 
> > here is some additional information.
> > 
> > But first, thanks to Udo Richter for suggesting the workaround of 
> > installing linux-image-5.4.0-0.bpo.2-amd64, in other words backporting the 
> > testing/bullseye kernel into buster. On my laptop, this fixed the 
> > intermittent problem restoring blanked screen. It also seems to have 
> > introduced a new problem where the computer occasionally does not blank 
> > or lock when it should, but that is far better than occasionally losing 
> > work-in-progress due to inability to restore the screen.
> 
> 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.

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.

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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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