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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Display sleep mode causes session crash"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94358#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Display sleep mode causes session crash"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94358">bug 94358</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>(In reply to Andreas Kloeckner from <a href="show_bug.cgi?id=94358#c3">comment #3</a>)
<span class="quote">> I'm not really using Wayland though. I know that the X server said something
> about Wayland events, but I'm not sure where that came from.
>
> Occasionally (but not every time) I get these messages as part of the crash,
> which does implicate the kernel:
>
> Mar 2 08:52:01 bolt kernel: [ 558.921225] [drm:intel_dp_start_link_train
> [i915]] *ERROR* failed to enable link training
> Mar 2 08:52:01 bolt kernel: [ 558.923915]
> [drm:intel_dp_complete_link_train [i915]] *ERROR* failed to start channel
> equalization</span >
That would only result in a black screen. If that is still happening with the
latest kernel, it is worth filing a separate bug for.
<span class="quote">> This only seems to happen with my 4K monitor.
>
> (and then all hell breaks loose:)
> Mar 2 08:52:01 bolt /usr/lib/gdm3/gdm-x-session[1909]: (II) systemd-logind:
> got pause for 13:87
> Mar 2 08:52:01 bolt /usr/lib/gdm3/gdm-x-session[1909]: (II) systemd-logind:
> got pause for 13:75
> Mar 2 08:52:01 bolt /usr/lib/gdm3/gdm-x-session[1909]: (II) systemd-logind:
> got pause for 13:88
> Mar 2 08:52:01 bolt /usr/lib/gdm3/gdm-x-session[1909]: (II) systemd-logind:
> got pause for 13:68
> Mar 2 08:52:01 bolt /usr/lib/gdm3/gdm-x-session[1909]: (II) systemd-logind:
> got pause for 13:67
> Mar 2 08:52:01 bolt gdm3: Child process -1136 was already dead.
> Mar 2 08:52:01 bolt systemd[1]: Stopping User Manager for UID 119...
> Mar 2 08:52:01 bolt systemd[1127]: Reached target Shutdown.</span >
And
är 01 15:21:42 bolt /usr/lib/gdm3/gdm-x-session[1706]: (II) intel(0): switch
to mode <a href="mailto:1920x1080@60.0">1920x1080@60.0</a> on eDP1 using pipe 0, position (0, 0), rotation normal,
reflection none
Mär 01 15:21:42 bolt /usr/lib/gdm3/gdm-x-session[1706]: (EE) intel(0): failed
to set mode: Permission denied [13]
Mär 01 15:21:44 bolt gnome-session-binary[2015]: WARNING: Application
'gnome-shell.desktop' killed by signal 11
Mär 01 15:21:44 bolt gnome-session[2015]: libGL error: failed to authenticate
magic 1
Mär 01 15:21:44 bolt gnome-session[2015]: libGL error: failed to load driver:
i965
tells me that logind tried to revoke the active display fd.</pre>
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