[Bug 60523] Lockup with radeon DPM on Radeon HD5770 (Juniper)

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=60523

Christian Birchinger <joker at netswarm.net> changed:

           What    |Removed                     |Added
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                 CC|                            |joker at netswarm.net

--- Comment #15 from Christian Birchinger <joker at netswarm.net> ---
I think i have the same problem using the kernel version 3.11-rc3+ (git version
incl. latest drm-fixes)

I'm also using a 5770 (MSI Radeon HD 5770 Hawk) graphics card.

I get the same error messages (write error: Invalid argument)
when echoing the values into power_dpm_force_performance_level.

During idle (XFCE with or without composite), it remains on power level 2:

# cat /sys/kernel/debug/dri/0/radeon_pm_info
uvd    vclk: 0 dclk: 0
power level 2    sclk: 87500 mclk: 120000 vddc: 1200 vddci: 1100
(Temperature is around 48C)


When playing a video, the states change (card gets cooler):

# cat /sys/kernel/debug/dri/64/radeon_pm_info
uvd    vclk: 50000 dclk: 40000
power level 1    sclk: 40000 mclk: 90000 vddc: 950 vddci: 1100
# cat /sys/kernel/debug/dri/64/radeon_pm_info
uvd    vclk: 50000 dclk: 40000
power level 2    sclk: 40000 mclk: 90000 vddc: 950 vddci: 1100
# cat /sys/kernel/debug/dri/64/radeon_pm_info
uvd    vclk: 50000 dclk: 40000
power level 0    sclk: 40000 mclk: 90000 vddc: 950 vddci: 1100
(Temperature is around 44C)


The Windows driver brings the temperature down to 37C in idle.

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