Messages in this thread | | | Date | Mon, 14 Jun 2010 12:00:29 -0400 | Subject | Re: [Regression, post-2.6.34] Hibernation broken on machines with radeon/KMS and r300 | From | Alex Deucher <> |
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On Mon, Jun 14, 2010 at 10:53 AM, Rafael J. Wysocki <rjw@sisk.pl> 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? With the latest changes, pm should not be a factor unless it's explicitly enabled via sysfs.
Alex
> Thanks, > Rafael > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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