Bug 1545550

Summary:	Screen is occasional turned of when xrandr is executed (ThinkPad W541)
Product:	Red Hat Enterprise Linux 7	Reporter:	Oliver Ilian <oliver>
Component:	xorg-x11-drv-intel	Assignee:	Adam Jackson <ajax>
Status:	CLOSED WORKSFORME	QA Contact:	Desktop QE <desktop-qa-list>
Severity:	medium	Docs Contact:	Jana Heves <jsvarova>
Priority:	unspecified
Version:	7.4	CC:	ajax, harald, oliver, rclark, tpelka
Target Milestone:	rc	Keywords:	Regression
Target Release:	---	Flags:	ajax: needinfo? (oliver)
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Known Issue
Doc Text:	Screen occasionally turns off when "xrandr" is executed With the "Nouveau" driver, RANDR operations combined with heavy 3D load, such as querying the screen resolution, may cause screen flickering. Flickering can be avoided by minimizing concurrent 3D and RANDR operations. Hence, query or resize the screen while 3D usage is minimal.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-03-05 18:36:45 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description Oliver Ilian 2018-02-15 09:35:36 UTC

Description of problem:
On a W541 (with Nvidia graphic card) the screen turns occasionally off during execution of xrandr -q. This happens for example when gnome-control-center is started.

Version-Release number of selected component (if applicable):
kernel-3.10.0-693.17.1.el7.x86_64
xorg-x11-server-Xorg-1.19.3-11.el7_4.1.x86_64
Model: W541
Graphic: Nvidia Quadro K1100M

How reproducible:
often

Steps to Reproduce:
1. log in to gnome as user
2. make sure the nouveau driver is not loaded
2. start 50 x glxgear (to get some load on the system)
3. in a second terminal repeat several times: xrandr -q

Actual results:
System flickers occasionally (screen turns completely off for 1 second)

Expected results:
System does not flicker

Additional info:
We have blacklisted the nouveau driver on this model due to https://bugzilla.redhat.com/show_bug.cgi?id=1545546


# log file /var/log/gdm/:0.log when system crashed
(II) modeset(0): EDID vendor "CMN", prod id 5571
(II) modeset(0): Printing DDC gathered Modelines:
(II) modeset(0): Modeline "1920x1080"x0.0  136.62  1920 1964 1992 2070  1080 1082 1086 1100 -hsync -vsync (66.0 kHz eP)
AUDIT: Thu Feb 15 09:06:18 2018: 4640: client 17 disconnected
AUDIT: Thu Feb 15 09:06:21 2018: 4640: client 17 connected from local host ( uid=14685 gid=14685 pid=11496 )
  Auth name: MIT-MAGIC-COOKIE-1 ID: 233
AUDIT: Thu Feb 15 09:06:21 2018: 4640: client 68 connected from local host ( uid=14685 gid=14685 pid=11496 )
  Auth name: MIT-MAGIC-COOKIE-1 ID: 233
AUDIT: Thu Feb 15 09:06:21 2018: 4640: client 68 disconnected
(II) modeset(0): EDID vendor "CMN", prod id 5571
(II) modeset(0): Printing DDC gathered Modelines:
(II) modeset(0): Modeline "1920x1080"x0.0  136.62  1920 1964 1992 2070  1080 1082 1086 1100 -hsync -vsync (66.0 kHz eP)
(WW) modeset(0): flip queue failed: Cannot allocate memory
(WW) modeset(0): Page flip failed: Cannot allocate memory
(EE) modeset(0): present flip failed
(WW) modeset(0): flip queue failed: Cannot allocate memory
(WW) modeset(0): Page flip failed: Cannot allocate memory

--------------

xrand -q
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
   1920x1080     60.00*+
   1400x1050     59.98
   1280x1024     60.02
   1280x960      60.00
   1024x768      60.04    60.00
   960x720       60.00
   928x696       60.05
   896x672       60.01
   800x600       60.00    60.32    56.25
   700x525       59.98
   640x512       60.02
   640x480       60.00    59.94
   512x384       60.00
   400x300       60.32    56.34
   320x240       60.05
VGA-1 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)

Comment 3 Oliver Ilian 2018-02-15 14:07:25 UTC

to add: The NVidia card is not used in this scenario, as the nouveau driver is not loaded. The Intel graphic card is: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)

Comment 5 Adam Jackson 2018-08-09 16:13:00 UTC

Do we still see this with 7.6?