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Radeon Driver Power Management Has Room For Improvement

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  • #41
    Originally posted by darkbasic View Post
    except a bit of flickering
    Are you, by any chance, running a multihead config?

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    • #42
      No I don't and I am aware that dynpm doesn't work on multi-head configurations.
      I had lots of problems with dynpm in the past, but now it just works (except of the flickering of course). When idling the temperature goes down by 10?C (60?C instead of 70?C+), while when running a game the gpu frequency goes up again (checked ssh-ing while still running the game). Also, doing a nexuiz or openarena timedemo with dynpm gives the same fps of "high" profile, while using the "low" profile I get a lower score.
      ## VGA ##
      AMD: X1950XTX, HD3870, HD5870
      Intel: GMA45, HD3000 (Core i5 2500K)

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      • #43
        By the way, I'm searching a "Watts up? Pro" UO version (100v-250v, 15 amp, 50/60 Hz). Unfortunately from the official site shipping to Italy does cost more than 100$
        Where can I buy it? Is there anyone else in Europe interest to buy it?
        ## VGA ##
        AMD: X1950XTX, HD3870, HD5870
        Intel: GMA45, HD3000 (Core i5 2500K)

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        • #44
          Originally posted by whitecat View Post
          What's the vendor of your card?
          Maybe the level of support is due to the BIOS provided by the vendors.
          I finally checked it: it's a Shappire.
          ## VGA ##
          AMD: X1950XTX, HD3870, HD5870
          Intel: GMA45, HD3000 (Core i5 2500K)

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          • #45
            With the HD5870 dynpm doesn't work, it keeps using the high profile
            Fortunately the low profile does work VERY well, it's 20?C colder
            ## VGA ##
            AMD: X1950XTX, HD3870, HD5870
            Intel: GMA45, HD3000 (Core i5 2500K)

            Comment


            • #46
              Originally posted by darkbasic View Post
              With the HD5870 dynpm doesn't work, it keeps using the high profile
              Fortunately the low profile does work VERY well, it's 20?C colder
              Thanks for reporting, dynpm is hard flawed according to Michael tests as well.
              Perhaps open a bug on freedesktop?

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              • #47
                Originally posted by darkbasic View Post
                By the way, I'm searching a "Watts up? Pro" UO version (100v-250v, 15 amp, 50/60 Hz). Unfortunately from the official site shipping to Italy does cost more than 100$
                Where can I buy it? Is there anyone else in Europe interest to buy it?
                Why not use a generic energy measurement device for eurosocket? Costs around 9?, fairly efficient.

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                • #48
                  On opensource drivers power managment dont work at all on my Sapphire HD 2600 XT. I tried every state - nothing happens, even dynpm doesnt works Tested on Ubuntu 11.04 amd64 and gentoo amd64-2.6.38. /sys/kernel/debug/dri/0/radeon_pm_info always same:

                  Code:
                  default engine clock: 800000 kHz
                  current engine clock: 796500 kHz
                  default memory clock: 700000 kHz
                  current memory clock: 693000 kHz
                  voltage: 1200 mV
                  PCIE lanes: 16
                  Code:
                  sensors:
                  
                  radeon-pci-0200
                  Adapter: PCI adapter
                  temp1:       +82.0 C
                  On fglrx everything works.

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                  • #49
                    Originally posted by crazycheese View Post
                    Perhaps open a bug on freedesktop?
                    Yes, I will. Unfortunately I have a long week ahead, hopefully I will be able to report it next week end.
                    ## VGA ##
                    AMD: X1950XTX, HD3870, HD5870
                    Intel: GMA45, HD3000 (Core i5 2500K)

                    Comment


                    • #50
                      Originally posted by crazycheese View Post
                      Why not use a generic energy measurement device for eurosocket? Costs around 9?, fairly efficient.
                      9?? I didn't see any so cheap, anyway I can even keep using the ups, the watts up pro was more interesting because you can connect it to the pc and it has linux drivers.
                      ## VGA ##
                      AMD: X1950XTX, HD3870, HD5870
                      Intel: GMA45, HD3000 (Core i5 2500K)

                      Comment

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