On Wednesday 16 June 2010, Rafael J. Wysocki wrote: > On Tuesday, June 15, 2010, Rafael J. Wysocki wrote: > > On Monday, June 14, 2010, Alex Deucher wrote: > > > On Mon, Jun 14, 2010 at 3:03 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote: > > > > On Monday, June 14, 2010, Alex Deucher wrote: > > > >> On Mon, Jun 14, 2010 at 10:53 AM, Rafael J. Wysocki <rjw@xxxxxxx> wrote: > > > >> > Alex, Dave, > > > >> > > > > >> > I'm afraid hibernation is broken on all machines using radeon/KMS > > > >> > with r300 after commit ce8f53709bf440100cb9d31b1303291551cf517f > > > >> > (drm/radeon/kms/pm: rework power management). At least, I'm able > > > >> > to reproduce the symptom, which is that the machine hangs hard > > > >> > around the point where an image is created (probably during the > > > >> > device thaw phase), on two different boxes with r300 (the output > > > >> > of lspci from one of them is attached for reference, the other one > > > >> > is HP nx6325). > > > >> > > > > >> > Suspend to RAM appears to work fine at least on one of the > > > >> > affected boxes. > > > >> > > > > >> > Unfortunately, the commit above changes a lot of code and it's not > > > >> > too easy to figure out what's wrong with it and I didn't have the > > > >> > time to look more into details of this failure. However, it looks > > > >> > like you use .suspend() and .resume() callbacks as .freeze() and > > > >> > .thaw() which may not be 100% correct (in fact it looks like the > > > >> > "legacy" PCI suspend/resume is used, which is not recommended any > > > >> > more). > > > >> > > > >> Does it work any better after Dave's last drm pull request? > > > > > > > > Nope. The symptom is slightly different, though, because now it > > > > hangs after turning off the screen. > > > > > > > >> With the latest changes, pm should not be a factor unless it's > > > >> explicitly enabled via sysfs. > > > > > > > > Well, I guess the first pm patch changed more than just pm, then. > > > > > > Does this patch help? > > > http://lists.freedesktop.org/archives/dri-devel/2010-June/001314.html > > > > No, it doesn't. I try to hibernate, everything works to the point where > > the screen goes off and the box hangs (solid). Normally, it would turn > > the screen back on and continue with saving the image. > > > > But, since that happens with the patch above applied, I think it doesn't > > really pass the suspend phase (IOW, it probably hangs somewhere in the > > radeon's suspend routine). > > I've just verified that in fact hibernation works on HP nx6325 with > 2.6.35-rc3, but it takes about 55 sec. to suspend the graphics adapter in > the "freeze" phase. Surprisingly enough, during suspend to RAM it works > normally (as well as in the "poweroff" phase of hibernation). It takes 2 minutes on RV530: https://bugzilla.redhat.com/show_bug.cgi?id=586522 -- Ondrej Zary _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
