From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 198243] New: nouveau: X11 server hangs while DPMS active
Date: Sun, 24 Dec 2017 01:47:44 +0000 [thread overview]
Message-ID: <bug-198243-2300@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=198243
Bug ID: 198243
Summary: nouveau: X11 server hangs while DPMS active
Product: Drivers
Version: 2.5
Kernel Version: 4.12.12
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Video(DRI - non Intel)
Assignee: drivers_video-dri@kernel-bugs.osdl.org
Reporter: kernelbugs@edsantiago.com
Regression: No
Created attachment 261315
--> https://bugzilla.kernel.org/attachment.cgi?id=261315&action=edit
Xorg.0.log
Symptom: DPMS is engaged, monitors off. Pressing keys has no effect.
System is alive. ssh'ing in, trying xdpyinfo (or any X command) on :0.0 results
in a hung client. Problem appeared between 4.9.34 and 4.12.12, sorry I can't
narrow it down further. It happens within a few hours of boot, and has never
hung while I'm actually doing something - only when I leave the keyboard and
come back to DPMS-blanked system.
Xorg server 1.19.5; hang has never happened on 4.9.34. It has happened twice in
the last 24 hours on 4.14.8.
strace on the X process yields rapid infinite loop of:
ioctl(12, DRM_IOCTL_NOUVEAU_GEM_CPU_PREP, 0x7ffee9b26240) = ? ERESTARTSYS
(To be restarted if SA_RESTART is set)
--- SIGALRM {si_signo=SIGALRM, si_code=SI_KERNEL} ---
There is absolutely nothing in /var/log/messages.
lspci reports the card as: 01:00.0 VGA compatible controller: NVIDIA
Corporation G96 [GeForce 9500 GT] (rev a1) (prog-if 00 [VGA controller])
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