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). […] > > BUG: unable to handle kernel NULL pointer dereference at (null) > > IP: [<e0ecaa4e>] _nouveau_clock_init+0x2a/0xaf [nouveau] […] > The oops in 3.13-rc1 should be fixed by applying the equivalent of > http://cgit.freedesktop.org/~darktama/nouveau/commit/?id=0397aaaa009092427dc60aea8b3c21c00526d8ba As you expected, the Oops is gone after applying the afforementioned patch, 3.13~ now behaves as 3.12 (it freezes, if X.org is started without a monitor attached). > . Also note that libdrm had a bug when compiled with gcc-4.8 for > pre-nv50 cards, not sure if the fixes have made it to Debian/unstable, > but you need libdrm-2.4.48+ (or compile it with gcc-4.7/clang). The libdrm2 version is 2.4.49-2, which -although it has been compiled with gcc 4.8.2-5[1]- should be unaffected by this issue. According to the ChangeLog the version is at 7ddc98f92f92560e2b52287ae8cf816ca4a057de and no significant patches[2] have been applied. > Lastly, another thing to try if you're getting random hangs is booting > with nouveau.agpmode=0 (and if that helps, seeing if =1 or =2 still > work ok). If that helps, it can be added to the quirks list. Unfortunately this doesn't appear to have an effect, with 3.13~ and the previous patch applied: # cat /sys/module/nouveau/parameters/agpmode 0 # init 5 [ 73.708490] nouveau W[ PTIMER][0000:01:00.0] unknown input clock freq system frozen. Regards Stefan Lippers-Hollmann [1] https://buildd.debian.org/status/fetch.php?pkg=libdrm&arch=i386&ver=2.4.49-2&stamp=1385480211 [2] http://anonscm.debian.org/gitweb/?p=pkg-xorg/lib/libdrm.git;a=blob;f=debian/patches/01_default_perms.diff;h=cdba93e19edf40b2b0b56d951a6416c68a0af6f0;hb=HEAD http://anonscm.debian.org/gitweb/?p=pkg-xorg/lib/libdrm.git;a=blob;f=debian/patches/02_kbsd_modeset.diff;h=260260925fc692c71d955d6490dabf87905abb51;hb=HEAD _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
