[Nouveau] [Bug 42384] X fails on NV11 with Error allocating scanout buffer: 0

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=42384

--- Comment #5 from Chris Paulson-Ellis <chris at edesix.com> 2011-10-30 09:06:24 PDT ---
You're absolutely right. The VRAM is 16Mb. I was misled by the GART aperture
being 64Mb.

No need for the hack. I managed to get it working by setting the framebuffer to
8bpp at the lowest resolution listed in the modelines from the Xorg log
(640x350). I can then get X working at full resolution as long as I use 16bpp.
These together account for <4Mb, so something is being profligate with the
VRAM, but it works, so I'm happy. Thankyou for your help.

For the record, I put the following on the end of the kernel line in grub.conf:
    video=LVDS-1:640x350-8

and my xorg.conf looks like this:

Section "Device"
        Identifier      "n"
        Driver          "nouveau"
EndSection

Section "Screen"
        Identifier      "n"
        Device          "n"
        DefaultDepth    16

        SubSection "Display"
                Depth   16
                Modes   "1600x1200"
        EndSubSection
EndSection

I'll attach new logs.

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