X.Org X server

Abnormally High CPU Usage (Ubuntu 13.04 + 13.10 + 14.04)

Bug #1250277 reported by Michael Murphy on 2013-11-12

This bug affects 19 people

Affects		Status	Importance	Assigned to	Milestone
	X.Org X server	Confirmed	Undecided	Unassigned
	Ubuntu	Confirmed	Undecided	Unassigned

Bug Description

Problem:
Move a window around, or even simply move the mouse around while top is running and watch CPU usage instantly rise to 100%.

Extra Information:
It may or may not be relevant but my graphics card is a Radeon HD 7950 and it is using the latest open source drivers.

mmstick@mmstick-PC:~$ glxinfo | grep OpenGL
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD TAHITI
OpenGL version string: 2.1 Mesa 10.0.0-devel (git-ab2da98 saucy-oibaf-ppa)
OpenGL shading language version string: 1.30
OpenGL extensions:

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu6
Uname: Linux 3.12.0-031200rc5-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.12.6-0ubuntu1
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,staticswitcher,workarounds,scale,expo,ezoom,dbus]
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Mon Nov 11 19:07:26 2013
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Tahiti PRO [Radeon HD 7950] [1002:679a] (prog-if 00 [VGA controller])
Subsystem: Gigabyte Technology Co., Ltd Device [1458:254c]
MachineType: To be filled by O.E.M. To be filled by O.E.M.
MarkForUpload: True
ProcEnviron:
LANGUAGE=en_US
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.12.0-031200rc5-generic root=UUID=33eaa480-577f-4c3c-9d01-50cb4b95c533 ro splash quiet radeon.dpm=1 radeon.audio=1
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/16/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1604
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: SABERTOOTH 990FX
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1604:bd10/16/2012:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnSABERTOOTH990FX:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To be filled by O.E.M.
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: To be filled by O.E.M.
version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu1
version.ia32-libs: ia32-libs 20090808ubuntu36
version.libdrm2: libdrm2 2.4.47+git1311111623.da738d~gd~s
version.libgl1-mesa-dri: libgl1-mesa-dri 10.0~git1311111625.ab2da9~gd~s
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.0~git1311111625.ab2da9~gd~s
version.xserver-xorg-core: xserver-xorg-core 2:1.14.3-3ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0+git1311050907.e4cd0f~gd~s
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.905+git1311111624.c48993~gd~s
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10+git1311070905.480f09~gd~s
xserver.bootTime: Mon Nov 11 18:50:19 2013
xserver.configfile: /etc/X11/xorg.conf
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.14.3-3ubuntu4
xserver.video_driver: radeon

Tags:

Revision history for this message

Michael Murphy (mmstick) wrote on 2013-11-12:

BootDmesg.txt Edit (83.0 KiB, text/plain; charset="utf-8")
BootLog.txt Edit (4.3 KiB, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (4.7 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (7.6 KiB, text/plain; charset="utf-8")
DpkgLog.txt Edit (2.6 MiB, text/plain; charset="utf-8")
GconfCompiz.txt Edit (45.7 KiB, text/plain; charset="utf-8")
LightdmDisplayLog.txt Edit (2.3 KiB, text/plain; charset="utf-8")
LightdmGreeterLog.txt Edit (7.9 KiB, text/plain; charset="utf-8")
LightdmGreeterLogOld.txt Edit (6.1 KiB, text/plain; charset="utf-8")
LightdmLog.txt Edit (4.5 KiB, text/plain; charset="utf-8")
Lspci.txt Edit (20.9 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (1.0 KiB, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (8.5 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (5.9 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (6.5 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (214.2 KiB, text/plain; charset="utf-8")
UdevLog.txt Edit (441.7 KiB, text/plain; charset="utf-8")
UnitySupportTest.txt Edit (608 bytes, text/plain; charset="utf-8")
XorgConf.txt Edit (265 bytes, text/plain; charset="utf-8")
XorgLog.txt Edit (116.9 KiB, text/plain; charset="utf-8")
XorgLogOld.txt Edit (132.3 KiB, text/plain; charset="utf-8")
Xrandr.txt Edit (10.6 KiB, text/plain; charset="utf-8")
drirc.txt Edit (2.9 KiB, text/plain; charset="utf-8")
xdpyinfo.txt Edit (25.0 KiB, text/plain; charset="utf-8")
xserver.devices.txt Edit (454 bytes, text/plain; charset="utf-8")
xserver.outputs.txt Edit (960 bytes, text/plain; charset="utf-8")

summary:

- Abnormally High CPU Usage
+ Abnormally High CPU Usage (Ubuntu 14.04)

Revision history for this message

Michael Murphy (mmstick) wrote on 2013-11-12: Re: Abnormally High CPU Usage (Ubuntu 13.10 + 14.04)

This also seems to affect a fresh install of 13.10.

summary:

- Abnormally High CPU Usage (Ubuntu 14.04)
+ Abnormally High CPU Usage (Ubuntu 13.10 + 14.04)

Michael Murphy (mmstick) on 2013-11-12

tags:

added: saucy

Michael Murphy (mmstick) on 2013-11-19

affects:	xf86-video-ati → xserver-xorg-video-ati (Ubuntu)
Changed in xorg (Ubuntu):
status:	New → Confirmed

Revision history for this message

Launchpad Janitor (janitor) wrote on 2013-11-19:

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in xserver-xorg-video-ati (Ubuntu):
status:	New → Confirmed

Michael Murphy (mmstick) on 2013-11-19

summary:

- Abnormally High CPU Usage (Ubuntu 13.10 + 14.04)
+ Abnormally High CPU Usage (Ubuntu 13.04 + 13.10 + 14.04)

Maarten Lankhorst (mlankhorst) on 2013-12-02

no longer affects:

xorg (Ubuntu)

Revision history for this message

Michael Murphy (mmstick) wrote on 2013-12-05:

I can cofirm that the issues with high CPU usage in a lot of programs, and primarily Xorg, is solved with Ubuntu 14.04. However, it still occurs in Ubuntu 13.10 and prior, though does not occur in Ubuntu 12.04. Furthermore, other than simply having a lot of my programs now using much lower CPU usage, the desktop is more more responsive.

Changed in xserver-xorg-video-ati (Ubuntu):
status:	Confirmed → Fix Released

Michael Murphy (mmstick) on 2013-12-05

no longer affects:	xserver-xorg-video-ati (Ubuntu)
Changed in xorg-server:
status:	New → Fix Committed

Revision history for this message

caine (cainethanatos) wrote on 2013-12-07:

I have the same issue but with an nvidia card ( GTX 560 ti )
Intel q6600
P45 chipset

Ubuntu 13.10

Using compiz with gnome-flashback

Kernel : Linux version 3.11.0-14-generic (buildd@allspice) (gcc version 4.8.1 (Ubuntu/Linaro 4.8.1-10ubuntu8) ) #21-Ubuntu SMP Tue Nov 12 17:04:55 UTC 2013

Revision history for this message

Raman Katwal (katwal-raman) wrote on 2014-02-04:

I have the same issue with my machine Sony VAIO S-series (VPCSA35GG).
CPU utilization is too high and my cpu fan running like anything which I never had in any of the Windows versions.

Updates are running will see if this got fixed...

Revision history for this message

Pranjal Barua (pranjal-barua) wrote on 2014-02-04:

I had the same problem which I think was caused by xorg defaulting to Software Rendering(due to faulty graphics driver) , hence high CPU Usage.

I solved my problem by installing intel graphics driver first and then reinstalling xserver-xorg

My Solution:

Step 1:
Install latest intel grphics driver
goto https://01.org/linuxgraphics/downloads/2013/intelr-graphics-installer-1.0.3-linux

Step 2: Reinstall xserver-xorg
sudo apt-get remove --purge xserver-xorg
sudo apt-get install xserver-xorg
sudo dpkg-reconfigure xserver-xorg

Revision history for this message

Michael Murphy (mmstick) wrote on 2014-02-04:

Nope, it's not software rendering. In fact, you can cause it simply by moving the mouse around quickly or by dragging a window.

Changed in xorg-server:
status:	Fix Committed → Confirmed

Revision history for this message

Christian S. (christian-stein2) wrote on 2014-03-21:

Same here on 14.04 Intel 945GM

Revision history for this message

Ludek (lusmo) wrote on 2014-04-03:

#10

Same here on 14.04 64 bit with Mobile 945GM

Revision history for this message

Mark Edgington (edgimar) wrote on 2014-05-17:

#11

I also am experiencing this on 14.04 32 bit, Intel 945GM. Using Gnome-flashback + compiz. The interesting thing is that when moving a window (e.g. grabbing title-bar and moving the window around on the screen), the CPU usage is "normal" not too much, and the motion is very fluid. When resizing a window (e.g. via Alt-Middle-mouse-button) the resizing is very choppy and the CPU usage is very high. So there must be some difference in what is used to perform resizing vs. what is used to move windows. I tried what was suggested in comment #7 (installing Intel's driver), with the same results.

Revision history for this message

cxp (cxp) wrote on 2014-08-20:

#12

xorg_high-cpu-usage.png Edit (157.3 KiB, image/png)

Same here on 14.04 amd64 Xubuntu with AMD ATI Mobility Radeon HD 5730. (wether I use the proprietary fglrx driver or the radeon driver)

Moving window or holding button in text editor, the cpu usage (from xorg) rises until I stop the action.
I also tested this behaviour under multiple virtual machines (Xubuntu 14.04 i386, Debian 7 i386) and could reproduce it (VMware Tools and driver installed).

Revision history for this message

Launchpad Janitor (janitor) wrote on 2015-02-27:

#13

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in ubuntu:
status:	New → Confirmed

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