[Nouveau] [Bug 62914] New: ZaphodHeads doesn't work after upgrading to xorg 1.14

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=62914

          Priority: medium
            Bug ID: 62914
          Assignee: nouveau at lists.freedesktop.org
           Summary: ZaphodHeads doesn't work after upgrading to xorg 1.14
        QA Contact: xorg-team at lists.x.org
          Severity: critical
    Classification: Unclassified
                OS: Linux (All)
          Reporter: nowaker at geozone.pl
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: Driver/nouveau
           Product: xorg

CASE 1 (MAIN):

My 2 GPUs, 3 monitors setup stopped working after upgrading xorg to 1.14. I
guess we should blame xorg as the same happened with 1.13 version.
https://bugs.freedesktop.org/show_bug.cgi?id=56347
I tried using upstream nouveau as well.

[2013-03-29 16:43] upgraded xf86-video-nouveau (1.0.6-1 -> 1.0.7-1)
[2013-03-29 16:43] upgraded xorg-server (1.13.2.901-1 -> 1.14.0-2)

Backtrace from upstream nouveau, commit
6771424d79e541d2fa7253a582db3dc9108fd97d.

[  2312.187] (EE) 0: /usr/bin/X (xorg_backtrace+0x36) [0x58a846]
[  2312.187] (EE) 1: /usr/bin/X (0x400000+0x18e669) [0x58e669]
[  2312.187] (EE) 2: /usr/lib/libpthread.so.0 (0x7f1738fa2000+0xf1e0)
[0x7f1738fb11e0]
[  2312.187] (EE) 3: /usr/local/lib/xorg/modules/drivers/nouveau_drv.so
(0x7f1733dc0000+0x25e30) [0x7f1733de5e30]
[  2312.187] (EE) 4: /usr/bin/X (xf86CrtcSetModeTransform+0x14d) [0x4ae31d]
[  2312.187] (EE) 5: /usr/bin/X (xf86SetDesiredModes+0x1b8) [0x4aeb58]
[  2312.187] (EE) 6: /usr/local/lib/xorg/modules/drivers/nouveau_drv.so
(0x7f1733dc0000+0xe7d1) [0x7f1733dce7d1]
[  2312.188] (EE) 7: /usr/local/lib/xorg/modules/drivers/nouveau_drv.so
(0x7f1733dc0000+0xf126) [0x7f1733dcf126]
[  2312.188] (EE) 8: /usr/bin/X (0x400000+0xabbae) [0x4abbae]
[  2312.188] (EE) 9: /usr/bin/X (0x400000+0x2674d) [0x42674d]
[  2312.188] (EE) 10: /usr/lib/libc.so.6 (__libc_start_main+0xf5)
[0x7f1737e2ea15]
[  2312.188] (EE) 11: /usr/bin/X (0x400000+0x26bdd) [0x426bdd]

Can you please investigate what could cause the error?

I took a look at other projects reporting xorg 1.14 fails, maybe this has
something to do with my nouveau problem? Just a guess.
- https://bugs.freedesktop.org/show_bug.cgi?id=62112
- https://bugs.freedesktop.org/show_bug.cgi?id=62773

Files:
- full log:
  http://upload.nowaker.net/nwkr/1364581970_Xorg.0.log-HEAD
- my xorg.conf.3monitors - the same for two years:
  http://wklej.org/id/555276/txt/ 


CASE 2 (AUX):

When falling back to my 1 GPUs, 2 monitors setup with ZaphodHeads, I get only
one monitor working. That may be interesting:

[  2345.932] (EE) NOUVEAU(1): [drm] failed to set drm interface version.
[  2345.932] (EE) NOUVEAU(1): [drm] error opening the drm
[  2345.932] (EE) NOUVEAU(1): 820: 

Files:
- full log:
  http://upload.nowaker.net/nwkr/1364582818_Xorg.0.log-2monitors
- my xorg.conf.2monitors:
  http://upload.nowaker.net/nwkr/1364582578_xorg.conf.2monitory


As usual, patches will be appreciated - I will test.
My environment: Arch Linux, kernel 3.8.4-1-ARCH.

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