Nouveau - Sep 2008 - [Bug 17699] New: Xorg crashes when trying to share a VT

http://bugs.freedesktop.org/show_bug.cgi?id=17699

           Summary: Xorg crashes when trying to share a VT
           Product: xorg
           Version: 7.3
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: me at nikosapi.org
         QAContact: xorg-team at lists.x.org


I'm using Kubuntu 8.04.1 (with all the latest updates) and the nouveau
driver
from https://launchpad.net/~raof/+archive

I have two video cards, a PCIEx16 nvidia 6600GT (pci:0000:01:00.0) and a PCI
ATI Radeon Mobility M7 LW (pci:0000:07:02.0). The nvidia card is connected to
two monitors (used in a dualhead configuration) and the ati card is connected
to a television via it's s-video output.

Using the proprietary nvidia driver I was able to start a second X server for
the ati card on a shared VT (using the -novtswitch and -sharevts options). Now
when I try that with the nouveau driver the X server of the nvidia card
crashes, here's an excerpt from the Xorg.0.log:

(II) NOUVEAU(0): Fifo dump (lockup 0x3fffffff,0x02d2):
(II) NOUVEAU(0): End of fifo dump

Fatal server error:
DMA queue hang: dmaPut=2d2, current=3fffffff, status=ffffffff

(II) NOUVEAU(0): NVLeaveVT is called.


What does work is if I start the second X server without the -novtswitch and
-sharevts options on it's own VT, but then I can't use both outputs at
the same
time.

Here are some various files that might be of use:

nvidia card's Xorg.0.log: http://slexy.org/raw/s23sDw5Xzq
nvidia card's xorg.conf: http://slexy.org/raw/s21cWkoQiK
ati card's Xorg.1.log: http://slexy.org/raw/s2ld9etfR1
ati card's xorg.conf: http://slexy.org/raw/s2dCF4Rf0B


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http://bugs.freedesktop.org/show_bug.cgi?id=17699





--- Comment #1 from Stuart Bennett <sb476 at cam.ac.uk>  2009-01-13
16:37:02 PST ---
Nouveau currently rather expects to be driving the only card being used in the
system, and only having one xserver running at once.  Bugs 17699 and 19223 may
be relevant here.  You may (if you haven't tried it already) be able to get
the
above setup working running the ati card without drm (no kernel module), but I
wouldn't guarantee it.


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Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #2 from Ilia Mirkin <imirkin at alum.mit.edu> ---
It appears that this bug report has laid dormant for quite a while. Sorry we
haven't gotten to it. Since we fix bugs all the time, chances are pretty
good
that your issue has been fixed with the latest software. Please give it a shot.
(Linux kernel 3.10.7, xf86-video-nouveau 1.0.9, mesa 9.1.6, or their git
versions.) If upgrading to the latest isn't an option for you, your
distro's
bugzilla is probably the right destination for your bug report.

In an effort to clean up our bug list, we're pre-emptively closing all bugs
that haven't seen updates since 2011. If the original issue remains, please
make sure to provide fresh info, see http://nouveau.freedesktop.org/wiki/Bugs/
for what we need to see, and re-open this one.

Thanks,

The Nouveau Team

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