On Sun, May 2, 2010 at 3:13 PM, Klaus Doblmann B.A. <klaus.doblmann@xxxxxxxxx> wrote: > On Tue, 27 Apr 2010 14:06:41 -0400 > Alex Deucher <alexdeucher@xxxxxxxxx> wrote: > >> >> > I've been testing radeon KMS PM with 2.6.34-rc* for a few days now and >> >> > I wanted to send you my testcase. Even though PM is enabled, the >> >> > defaults of my card are somewhat insane so no real powermanagement >> >> > takes place - i.e. the card doesn't get clocked down. is there any way >> >> > to force the card to use a different setting where less power is being >> >> > consumed? >> >> >> >> The current code doesn't handle a lot of cases properly. Please try >> >> my latest patch set against Dave's drm-next tree: >> >> http://people.freedesktop.org/~agd5f/pm3/ >> >> It allows you to enable dynamic pm or force a static power mode via sysfs. >> >> >> >> Alex >> > >> > Will do so at the end of the week when (hopefully) 2.6.34-rc6 is out >> > and I have mor etime on my hands. >> > Could you a bit more explicit on how I could set a static power mode >> > via sysfs? I've never worked with sysfs before so some hints would be >> > greatly appreciated. >> >> enable/disable dynpm: >> echo 1 > /sys/class/drm/card0/device/dynpm >> >> force a static power state: >> echo 1.0 > /sys/class/drm/card0/device/power_state >> >> Alex >> > > Hi Alex, > > I just built drm-radeon-testing as I saw the patches have already > been merged there. > It built fine, I updated the firmware files as the Xor-Wiki suggests, > but when I boot into the resulting kernel with dynpem on my screen goes > all wonky, a portion on the right side is missing and I've got vertical > lines running down the screen. Somehow I managed to look at dmesg and > saw that the speed was being set correctly (it even set the lowest one > available). Thing should work better with the patches here: http://people.freedesktop.org/~agd5f/pm-drt/ on top of d-r-t. > > When I tried "sudo echo 0 > /sys/class/drm/card0/device/dynpm" to see > whether switching off dynpm would fix the "drunken" screen the system > told me I was not permitted to access the file... You need to be root to access the file. sudo can't handle redirects, so you need something like: sudo bash -c "echo 0 > /sys/class/drm/card0/device/dynpm" > > I am attaching the syslog from the faulty boot in case it's of any > help... > > Klaus > > > -- > Klaus Doblmann B.A. - http://straightrazorguy.net - FSF member #7570 > PGP-Key: http://www.doblmann.de/pgp_key.asc > http://twitter.com/klausdoblmann > > A: Because it messes up the order in which people normally read text. > See http://en.wikipedia.org/wiki/Posting_style > Q: Why is top-posting such a bad thing? > A: Top-posting. > Q: What is the most annoying thing in e-mail? > _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel