[Bug 53391] New: nouveau: wrong display output order

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=53391

           Summary: nouveau: wrong display output order
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.8-rc6
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
        AssignedTo: drivers_video-dri at kernel-bugs.osdl.org
        ReportedBy: stijn+bugs at linux-ipv6.be
        Regression: No


My graphics card is a Gainward GTX480
(http://www.gainward.com/main/vgapro.php?id=238). It has 2 DVI outputs, and 1
mini HDMI output. The DVI outputs are numbered on the card, with DVI 1 being
the closest to the PCIe slot, then DVI 2, and finally the mini HDMI.

My primary (left) monitor, is connected to DVI 1, my secondary (right) monitor
to DVI 2. When I boot the computer, the BIOS initializes and uses the monitor
on DVI 1. Grub is displayed on the primary monitor, and the kernel initially
outputs to the primary monitor as well.

However, as soon as the nouveau module is loaded, the primary monitor goes to
standby and the kernel now uses the secondary monitor (on DVI 2) as primary.
When X starts (no Xorg.conf file), it is also displayed on the secondary
monitor.

When using either efifb, vesafb or uvesafb, the monitor on DVI 1 is always the
primary monitor. X with nvidia.ko also uses DVI 1 as the primary display.
Finally, when booting Windows, the startup screen is also displayed on the
monitor connected to DVI 1.

Here comes the weird part: when I am in X, and run xrandr, it does show 3
connected devices: DVI-I-1, DVI-I-2, and HDMI-1, with DVI-I-2 being the only
active one. So it seems that in X, the output order is correct, but with
nouveaufb the DVI connectors are swapped.

I will attach the output of dmesg here. If anything else is needed, please let
me know and I'll be happy to add it.

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