ubuntu-x-swat team mailing list archive

[Laurent Bonnaud <Laurent.Bonnaud@xxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg-video-ati

I am using a laptop with a radeon X1600 graphic card.  To reduce heat
and increase battery life, I would like to reduce the frequency of the
GPU and graphic RAM.

With Ubuntu up to intrepid I was using the fglrx driver and could do
what I want.

Since jaunty I am using the xserver-xorg-video-radeon driver.  In karmic
a new driver option appeared:

       Option "DynamicPM" "boolean"
              Enable  dynamic  power  mode  switching.   This  can help reduce heat and increase battery life by
              reducing power usage when the system is idle (DPMS active). The default is off.

Unfortunately, when I activate it, the X server uses 100% CPU (but seems to work well otherwise).
I tried "strace -p PID_OF_THE_X_SERVER" to know what the X server is doing with the CPU, but the X server locked up.

ProblemType: Bug
Architecture: i386
Date: Mon Oct 12 10:49:47 2009
DistroRelease: Ubuntu 9.10
MachineType: Acer, inc. TravelMate 8200
Package: xserver-xorg-video-radeon 1:6.12.99+git20090825.fc74e119-0ubuntu3
PccardctlIdent:
 Socket 0:
   no product info available
 Socket 1:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
 Socket 1:
   5.0V 16-bit PC Card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-13-generic-pae root=UUID=aba4a907-9dc5-4a69-8f75-c6e39bdb2c56 ro quiet splash
ProcVersionSignature: Ubuntu 2.6.31-13.44-generic-pae
RelatedPackageVersions:
 xserver-xorg 1:7.4+3ubuntu5
 libgl1-mesa-glx 7.6.0-1ubuntu2
 libdrm2 2.4.14-1ubuntu1
 xserver-xorg-video-intel 2:2.9.0-1ubuntu1
 xserver-xorg-video-ati 1:6.12.99+git20090825.fc74e119-0ubuntu3
SourcePackage: xserver-xorg-video-ati
Uname: Linux 2.6.31-13-generic-pae i686
XsessionErrors:
 (polkit-gnome-authentication-agent-1:3501): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (gnome-settings-daemon:3528): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
dmi.bios.date: 02/08/07
dmi.bios.vendor: Acer
dmi.bios.version: v1.3521
dmi.board.name: Como
dmi.board.vendor: Acer, Inc.
dmi.board.version: Not Applicable
dmi.chassis.type: 1
dmi.chassis.vendor: , Inc.
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAcer:bvrv1.3521:bd02/08/07:svnAcer,inc.:pnTravelMate8200:pvrNotApplicable:rvnAcer,Inc.:rnComo:rvrNotApplicable:cvn,Inc.:ct1:cvrN/A:
dmi.product.name: TravelMate 8200
dmi.product.version: Not Applicable
dmi.sys.vendor: Acer, inc.
fglrx: Not loaded
system:
 distro:             Ubuntu
 architecture:       i686kernel:             2.6.31-13-generic-pae

** Affects: xserver-xorg-video-ati (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386

-- 
The DynamicPM option makes the X server use 100% CPU
https://bugs.launchpad.net/bugs/449350
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