[Bug 38657] New: Redwood: power state #4 not used

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=38657

           Summary: Redwood: power state #4 not used
           Product: DRI
           Version: unspecified
          Platform: All
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: mkgmafbt at gmail.com


Created an attachment (id=48390)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=48390)
Part of dmesg with power states

It's a Sapphire Radeon HD5670 512MB GDDR5. DRM reports 5 power states, but low
profile won't use #4, wich is the 2D profile, nor does dynpm. All kernels with
Evergreen pm support are affected by this (possible) bug, including 3.0-rc4.

cat /sys/class/drm/card0/device/power_profile 
low

cat /sys/kernel/debug/dri/0/radeon_pm_info
default engine clock: 775000 kHz
current engine clock: 399990 kHz
default memory clock: 950000 kHz
current memory clock: 950000 kHz
voltage: 1100 mV
PCIE lanes: 16

(should be 150/300 MHz 0.9V)

lspci -nn | grep  VGA
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Redwood [Radeon
HD 5670] [1002:68d8]

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