On Tue, Nov 26, 2013 at 8:35 PM, Stefan Lippers-Hollmann <s.L-H@xxxxxx> wrote: > Hi > > On Wednesday 27 November 2013, Ilia Mirkin wrote: >> On Tue, Nov 26, 2013 at 7:18 PM, Stefan Lippers-Hollmann <s.L-H@xxxxxx> wrote: >> > Hi >> > >> > On Tuesday 26 November 2013, Ilia Mirkin wrote: >> >> On Tue, Nov 26, 2013 at 6:03 PM, Stefan Lippers-Hollmann <s.L-H@xxxxxx> wrote: >> >> > v3.11 is fine, with and without monitor attached. >> >> > v3.12 is fine as long as X.org isn't started (but may fail to reboot >> >> > cleanly). If a monitor is connected I don't observe any problems, >> >> > it freezes without a monitor connected. >> >> > v3.13-rc1-95-gb975dc3 appears not to freeze without a monitor anymore >> >> > (I didn't confirm that it's fine with a monitor attached), but I >> >> > end up with the following Oops (this is before X.org is started). >> >> One more idea -- try it with nouveau.runpm=0 -- I've had some odd >> results with it on my older cards (but I don't remember hangs, but I >> also didn't spend a lot of time on it, just plopped the option in and >> moved on). This is a feature that got in in 3.12, and is really the >> only major nouveau-affecting change in that kernel for your card >> revision. > > You're spot on, that does the trick. Great to hear! > > # cat /sys/module/nouveau/parameters/agpmode > -1 > # cat /sys/module/nouveau/parameters/runpm > 0 > > v3.13-rc1-95-gb975dc3 > + http://cgit.freedesktop.org/~darktama/nouveau/commit/?id=0397aaaa009092427dc60aea8b3c21c00526d8ba > + nouveau.runpm=0 > is now stable, with and without a monitor attached; as is > > 3.12.1 || v3.12.1-62-g4615252 (stable-queue.git) > + nouveau.runpm=0 > Dave, looking at the code, it seems like runtime pm should only be getting activated by default for optimus systems. Stefan's is clearly not one of those, neither is mine. Unfortunately I have no clue how the runtime pm subsystem works, but it seems like runtime_suspend() may be getting called directly, e.g. if there are no monitors attached to nouveau, perhaps as a result of nouveau_crtc_set_config in dispnv04/crtc.c. Does the same if (runpm == -1 && !optimus) return -EBUSY check belong in the runtime_suspend callback? -ilia _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
