Mailinglist Archive: radeonhd (308 mails)

[Jochen Heuer <jogi-radeonhd@xxxxxxxxxxxxxxxxxx>]

Hello,

I have bought a Radeon 3870 because I have read in several tests that the
current AMD 38x0 cards use very little power if idle. And since AMD has started
to help make OpenSource drivers for those cards a reality there was no show
stopper anymore.

So now I have the card but obviously POWERplay is not used in Linux (at the
moment I hope) because the whole system is using 50W more compared to when
running Windows.

I tried all 3 drivers (fglrx, radeon and radeonhd) with no differences in this
regard. Found some hints that POWERplay can be enabled via aticonfig but not on
my hardware:

planetzork ~ # aticonfig --lsp
Error: POWERplay is not supported on your hardware.

I am running the following card:

01:00.0 VGA compatible controller: ATI Technologies Inc Radeon HD 3870 (prog-if
00 [VGA controller])
        Subsystem: Hightech Information System Ltd. Unknown device 2244
        Flags: bus master, fast devsel, latency 0, IRQ 18
        Memory at d0000000 (64-bit, prefetchable) [size=256M]
        Memory at fdee0000 (64-bit, non-prefetchable) [size=64K]
        I/O ports at de00 [size=256]
        [virtual] Expansion ROM at fde00000 [disabled] [size=128K]
        Capabilities: [50] Power Management version 3
        Capabilities: [58] Express Legacy Endpoint, MSI 00
        Capabilities: [a0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 
Enable-
        Capabilities: [100] Vendor Specific Information

I hope it's planned to support POWERplay on Linux too. Are there any timeframes
yet?

Many thanks in advance!

Best regards,

   Jogi
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