[3.11-rc4] [HD2400] - radeon.dpm

[Alex Deucher]

On Thu, Aug 8, 2013 at 11:34 AM, miaou sami <miaousami at hotmail.com> wrote:
> Hi,
>
> thanks for the explanation.
> Do you know if this is a hardware limitation, or if an updated version of
> the driver will come some day?

It's not a hardware limitation.  The driver relies on what the OEM put
in the power tables as that is what was validated with the OEM.  You
might check to see if your OEM offers an updated bios for your system.

Alex

>
> Regards,
> Sam
>
>> Date: Wed, 7 Aug 2013 18:06:05 -0400
>> Subject: Re: [3.11-rc4] [HD2400] - radeon.dpm
>> From: alexdeucher at gmail.com
>> To: miaousami at hotmail.com
>> CC: dri-devel at lists.freedesktop.org
>>
>> On Wed, Aug 7, 2013 at 5:53 PM, miaou sami <miaousami at hotmail.com> wrote:
>> > Hi,
>> >
>> > thanks for your reply.
>> > Here is the dmesg.
>> >
>> > Let me know if you need further testing.
>>
>> As I suspected, on your system all the performance levels are the same:
>>
>> [ 8.961675] == power state 0 ==
>> [ 8.961677] ui class: none
>> [ 8.961679] internal class: boot
>> [ 8.961682] caps: video
>> [ 8.961684] uvd vclk: 0 dclk: 0
>> [ 8.961686] power level 0 sclk: 45000 mclk: 50000 vddc: 950
>> [ 8.961688] power level 1 sclk: 45000 mclk: 50000 vddc: 950
>> [ 8.961690] power level 2 sclk: 45000 mclk: 50000 vddc: 950
>> [ 8.961691] status: c r b
>> [ 8.961695] == power state 1 ==
>> [ 8.961696] ui class: performance
>> [ 8.961698] internal class: none
>> [ 8.961700] caps: video
>> [ 8.961703] uvd vclk: 0 dclk: 0
>> [ 8.961704] power level 0 sclk: 45000 mclk: 50000 vddc: 950
>> [ 8.961706] power level 1 sclk: 45000 mclk: 50000 vddc: 950
>> [ 8.961708] power level 2 sclk: 45000 mclk: 50000 vddc: 950
>> [ 8.961709] status:
>>
>> So there is no dynamic switching supported on your system.
>>
>> Alex
>>
>> >
>> > Regards
>> > Sam
>> >
>> >> Date: Wed, 7 Aug 2013 09:13:20 -0400
>> >> Subject: Re: [3.11-rc4] [HD2400] - radeon.dpm
>> >> From: alexdeucher at gmail.com
>> >> To: miaousami at hotmail.com
>> >> CC: dri-devel at lists.freedesktop.org
>> >
>> >>
>> >> On Tue, Aug 6, 2013 at 4:03 PM, * SAMÍ * <miaousami at hotmail.com> wrote:
>> >> > Hi,
>> >> >
>> >> > I was testing 3.11-rc4 with and without radeon.dpm=1 and I expected
>> >> > some
>> >> > results, either in performance or in power consumption, but I do not
>> >> > notice
>> >> > any change...
>> >> > Should I worry?
>> >> > Or do you want me to do any specific test?
>> >>
>> >> Please attach your dmesg output. Some early rv6xx cards had identical
>> >> performance levels in all power states so they didn't actually support
>> >> dynamic clock switching.
>> >>
>> >> Alex
>> >>
>> >> >
>> >> > I have an ATI Mobility HD2400 (RV610).
>> >> >
>> >> > cat /sys/class/drm/card0/device/power_dpm_state
>> >> > balanced
>> >> >
>> >> > dmesg: radeon: dpm initialized
>> >> >
>> >> > No specific error in dmesg...
>> >> >
>> >> > Regards
>> >> > Sam
>> >> >
>> >> > _______________________________________________
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>> >> > dri-devel at lists.freedesktop.org
>> >> > http://lists.freedesktop.org/mailman/listinfo/dri-devel
>> >> >