[Nouveau] [Bug 31676] New: garbled text after loading nouveau module on EFI boot; X driver thinks there are no connected outputs

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=31676

           Summary: garbled text after loading nouveau module on EFI boot;
                    X driver thinks there are no connected outputs
           Product: xorg
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: bjt23 at cornell.edu
         QAContact: xorg-team at lists.x.org


Created an attachment (id=40329)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=40329)
dmesg output as I modprobe nouveau

Hopefully this isn't too similar or the same as #29171.  I have one of he new
11" MacBook Air machines (MacBookAir3,1) with the 320M chipset (PCI id 0x08a2,
NVAF I believe).

I'm booting in EFI mode using grub2, as this machine appears to have issues
setting up the SATA controller in BIOS emulation mode.  I've booted in BIOS
mode and done a dump of the video BIOS and int10 vector, which I'm loading via
grub2's "loadbios" command.

I'm running 2.6.37-rc2 with a bunch of hw-specific patches applied (as well as
a patch to boot in EFI physical rather than virtual mode, which unbreaks PCI),
the 16 Nov nouveau-drm snapshot from pq's webdir on people.fd.o, and
xf86-video-nouveau git rev 1143e7a.

First I modprobe nouveau.  Screen flashes, and it looks kinda garbled and
messed up.  I can vaguely see the cursor flashing, and I can ssh in.  I'll
attach dmesg output.  From that it looks like it's not finding connected
outputs, and it's using a fallback 1024x768 res (the LCD panel's native res is
1366x768).