This Is What Started AMD's Open-Source Strategy

[yotambien]

I'm curious now, what's broken with low or mid profiles in some cards?

[d2kx]

you claim that i claim that dynpm/low should be the default but in reality this is only in your imagination.
your fight against your own imagination not against my points of view.
because there is also dynpm/mid and this is not buggy but mid isn't default high is default.

and now explain me why mid is not default??

you can't explain?

Okay so the fact that you're mentioning "dynpm/mid" shows that you have no idea whatsoever what dynpm is. Because it has nothing to do with the profiles. Furthermore, a lot of chips, like the E-350, don't even have a mid-profile. And finally, the ones that do (e.g. my HD 6870) still have problems with profile mid, although less than with low. If there is even one user that has problems with non-default (non-high), you can't make it the default.

@bridgman: don't waste your energy in arguing with Q. It's hopeless

[utrrrongeeb]

And I use the Debian package sysfsutils.

In /etc/sysfs.conf I have

module/pcie_aspm/parameters/policy = powersave

class/drm/card0/device/power_method = profile
class/drm/card0/device/power_profile = low

owner class/drm/card0/device/power_method = root:video
owner class/drm/card0/device/power_profile = root:video
mode class/drm/card0/device/power_method = 0660
mode class/drm/card0/device/power_profile = 0660

Specs: Sapphire Vapor-X Radeon HD 5770 1GiB with git r600g on Debian Wheezy [testing]. I have a button in my Xfce Panel to toggle between Low and High. After a little gaming, switching down to Low yields a noticeable difference in fan noise, and the GPU temperature drops to 39 C or so (today it's down to 34 C).

[pingufunkybeat]

You can put the following in your Xsetup or something comparable:

echo profile > /sys/class/drm/card0/device/power_method
echo low > /sys/class/drm/card0/device/power_profile

I put it into kdm's Xsetup, for example.

[utrrrongeeb]

is possible, to "force" system to change to mid/low after system is loaded?
when reboot, go back to default?

Manually? See http://wiki.x.org/wiki/radeonBuildHo...wer-management.

[NomadDemon]

is possible, to "force" system to change to mid/low after system is loaded?
when reboot, go back to default?

[bridgman]

maybe he is trying to say something like this: "we are to stupid to set the mid profile after the startup"

No, he is trying to say "if a user manually sets a profile and something bad happens then they can reboot and not set that profile in the future, but if the driver defaults to the same profile at startup and something bad happens then the user is stuck because the same problem will occur on each subsequent boot".

Feel free to substitute "human input device" for "user" where doing so makes you happy.

If a user manually sets a profile (mid, for example) and finds it works well on their system, they can edit a startup file to have that profile set automatically on their system during each subsequent boot.

[bridgman]

sorry i can't click on this link to the source of the claims. do i have to believe your fairy tale ?

You can believe anything you want.

Perhaps you could start by looking at RadeonFeature (mentions that low causes display problems on some laptops), then look at the various posts here where users find they don't have a working mid setting, and ask yourself "if low and mid aren't options for default, then what is ?".

If you look at agd5f's commits over the last couple of years you'll see various experiments to find default logic that runs with lower power *and* works reliably on all the systems out there, but my impression is that nobody has found a winning combination yet.

[cb88]

@quaridium if you are too lazy to google up the IRC logs why should anyone help you.

[bridgman]

agd5f has mentioned it here a couple of times IIRC, also discussion on #radeon over the last couple of years