[Bug 49794] New: HD5850 clocks are always limited to 400/900

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri May 11 05:31:25 PDT 2012


             Bug #: 49794
           Summary: HD5850 clocks are always limited to 400/900
    Classification: Unclassified
           Product: xorg
           Version: git
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: s.demakov at gmail.com
         QAContact: xorg-team at lists.x.org

cat /sys/kernel/debug/dri/0/radeon_pm_info is reporting default clocks at
400/900 mhz.
Changing power profile to high (which is actually 725/1000 according to bios)
only increases the voltage, but clocks are still limited at 400/900.
Also, these values 400/900 match only UVD mode in the graphics card bios.
I suspect the driver uses incorrect bios readings, because the default "boot"
value is 725/1000 for my HD5850.

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