Bug 94251

Summary:	Warning and trace when X awakes from Blank/Standby/Suspend/Off
Product:	Drivers	Reporter:	William (wjfgb)
Component:	Video(DRI - Intel)	Assignee:	intel-gfx-bugs (intel-gfx-bugs)
Status:	RESOLVED OBSOLETE
Severity:	normal	CC:	intel-gfx-bugs
Priority:	P1
Hardware:	x86-64
OS:	Linux
Kernel Version:	3.15-rc1	Subsystem:
Regression:	Yes	Bisected commit-id:
Attachments:	dmesg output produced by wake up after "xset dpms 5 0 0" (kernel 4.0-rc2).

Description William 2015-03-04 12:02:36 UTC

Created attachment 168911 [details]
dmesg output produced by wake up after "xset dpms 5 0 0" (kernel 4.0-rc2).

Under kernel 3.15-rc1 onwards get a warning and trace in syslog when X
awakes from Blank/Standby/Suspend/Off. No other adverse effects are
apparent.

Was last OK under kernel 3.14.34.

This bug is raised in response to BUG ID 91241 comment 10.

------------------------------------
Hardware:
  Asus P7H55-M SI with Intel Core i5 processor
  and Integrated Graphics [i915 driver].
  The board has 3 physical graphics connectors :-
    VGA    = VGA1
    DVI-D  = HDMI1 in use.
    HDMI   = HDMI2

Distro: Slackware-14.1, but with latest kernel.

X: xorg-server-1.14.3-x86_64-3_slack14.1
   xorg-server-xvfb-1.14.3-x86_64-3_slack14.1

Window manager: icewm-1.3.8 (also get similar results with twm, wmaker)
------------------------------------

See attached dmesg output produced by wake up after "xset dpms 5 0 0",
running kernel 4.0-rc2.

Comment 1 Jani Nikula 2015-10-07 10:05:10 UTC

We seem to have neglected this bug. Apologies.

If the problem persists with latest kernels, please file a new bug at the freedesktop.org bugzilla [1], referencing this bug. Thank you.

[1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel