Continued in bug 1837683.
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https://bugs.launchpad.net/bugs/1821059
Title:
Screen remains black/off when the system is resumed from sleep [(EE)
modeset(0): present
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Ubuntu 18.10 (cosmic) reached end-of-life on July 18, 2019.
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** Summary changed:
- Screen remains black/off when the system is resumed from sleep
+ Screen remains black/off when the system is resumed from sleep [(EE)
modeset(0): present flip failed]
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Thanks. I'll gladly switch back to the modesetting driver to help debug
the problem.
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https://bugs.launchpad.net/bugs/1821059
Title:
Screen remains black/off when
Yes that should work.
For more information run:
man xorg.conf
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https://bugs.launchpad.net/bugs/1821059
Title:
Screen remains black/off when the system is
So that would go into /etc/X11/xorg.conf, and that would be all that's
in it? I don't have an xorg.conf currently, and I haven't edited one in
a very long time.
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You can certainly try using the old non-modesetting driver. To do that
you need to add a xorg.conf file forcing Xorg to use the old 'intel'
driver instead. Something like:
Section "Device"
Identifier "MyGPU"
Driver "intel"
EndSection
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So would it be best in the interim to move to the non-modesetting
driver, disable the present extension, or disable page flipping? I don't
really know what the impact of any of those would be, but the freezes
are getting pretty impactful for me.
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It appears the Xorg modesetting driver is repeatedly trying and failing
to put an image on the screen here:
[ 4207.036] (WW) modeset(0): flip queue failed: Invalid argument
[ 4207.036] (WW) modeset(0): Page flip failed: Invalid argument
[ 4207.036] (EE) modeset(0): present flip failed
[
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