Submitted: https://bugs.freedesktop.org/show_bug.cgi?id=106529
** Bug watch added: freedesktop.org Bugzilla #106529
https://bugs.freedesktop.org/show_bug.cgi?id=106529
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Please file an upstream bug at https://bugs.freedesktop.org/
Product: DRI
Component: DRM/amdgpu
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https://bugs.launchpad.net/bugs/1770836
Title:
amdgpu+xorg possibly marks displays as
Just checked and nothing changes – monitors in standby get treated as
hotplugged. So unless someone can get upstream interested, multi monitor
on amd stays kind of broken for who knows how long.
I really should've bought an nvidia card. :/
** Tags added: kernel-bug-exists-upstream
** Changed
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.17 kernel[0].
If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.
If the mainline kernel does not fix
Looks like I'm not the only one:
https://bugs.freedesktop.org/show_bug.cgi?id=104300.
And, interestingly enough, running 4.15 with amdgpu.dc=0 makes this
issue happen, but not 100% of the time (had it work correctly when
waking computer from sleep, but have a problem when only the monitors
went
** Description changed:
Ubuntu 18.04, all the x, libdrm, kernel, etc. packages up to date. KDE.
When waking the displays from sleep with 4.15 any display not yet fully
woken up seem to be reported as disconnected. This happens both when
waking the whole computer from sleep (systemctl
** Description changed:
Ubuntu 18.04, all the x, libdrm, kernel, etc. packages up to date. KDE.
When waking the displays from sleep with 4.15 any display not yet fully
woken up seem to be reported as disconnected. This happens both when
waking the whole computer from sleep (systemctl
** Description changed:
Ubuntu 18.04, all the x, libdrm, kernel, etc. packages up to date. KDE.
- When waking the displays from sleep with 4.15 (amdgpu.dc=1) any display
- not yet fully woken up seem to be reported as disconnected. This happens
- both when waking the whole computer from
Went with amdgpu.dc_log=1 to make the kernel more chatty.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1770836
Title:
Oh, and I did a single sleep/wake, so if there's gonna be anything in
the logs regarding the displays coming back up, it'll be after 15:48:32.
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https://bugs.launchpad.net/bugs/1770836
apport information
** Tags added: apport-collected bionic
** Description changed:
Ubuntu 18.04, all the x, libdrm, kernel, etc. packages up to date. KDE.
When waking the displays from sleep with 4.15 (amdgpu.dc=1) any display
not yet fully woken up seem to be reported as disconnected.
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