[Bug 40024] New: Power management does not work on ATI Mobility Radeon 9700

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Aug 11 12:01:59 PDT 2011


https://bugs.freedesktop.org/show_bug.cgi?id=40024

           Summary: Power management does not work on ATI Mobility Radeon
                    9700
           Product: Mesa
           Version: 7.10
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r300
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: robegrassi at gmail.com


Created an attachment (id=50139)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=50139)
output of dmesg

Hi,

I have an old Asus laptop with a Mobility Radeon 9700 card:

$ lspci -nn | grep VGA
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV350 [Mobility
Radeon 9600 M10] [1002:4e50]

I am using Xubuntu 11.04 with KMS and Gallium driver.

I would like to set the card to a lower power state because the fan goes often
high and the laptop gets hot. The problem is that these three files are
missing:

cat: /sys/class/drm/card0/device/power_method: No such file or directory
cat: /sys/class/drm/card0/device/power_profile: No such file or directory
cat: /sys/kernel/debug/dri/0/radeon_pm_info: No such file or directory

Does it mean that my card does not support power management?

Thank you very much for your help,

Roberto

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