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<body><span class="vcard"><a class="email" href="mailto:pierre.morrow@free.fr" title="Pierre Moreau <pierre.morrow@free.fr>"> <span class="fn">Pierre Moreau</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - MacBook Pro 5,1 with nVidia 9400m and 9600m, scrambled screen"
href="https://bugs.freedesktop.org/show_bug.cgi?id=58556">bug 58556</a>
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<td>pierre.morrow@free.fr
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - MacBook Pro 5,1 with nVidia 9400m and 9600m, scrambled screen"
href="https://bugs.freedesktop.org/show_bug.cgi?id=58556#c12">Comment # 12</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - MacBook Pro 5,1 with nVidia 9400m and 9600m, scrambled screen"
href="https://bugs.freedesktop.org/show_bug.cgi?id=58556">bug 58556</a>
from <span class="vcard"><a class="email" href="mailto:pierre.morrow@free.fr" title="Pierre Moreau <pierre.morrow@free.fr>"> <span class="fn">Pierre Moreau</span></a>
</span></b>
<pre>Hi Joanand,
(In reply to <a href="show_bug.cgi?id=58556#c6">comment #6</a>)
<span class="quote">> Is there any config which would activate accel for 9400 but no accel for
> 9600? This would be very helpful for me.</span >
You might also try, in nouveau_accel_init:
if (device->chipset == 0x96)
return;
It works without nouveau.noaccel=1 and has no scrambled screen (at least for
the GUI and the console, except for a tiny moment of full garbage (boot logo?)
but it gets cleared away after), but it is unstable (hanged up some times at
boot) and it spams a lot (more than 1600 lines) of
nouveau E[PFB][0000:03:00:0] trapped write at 0x0000546000 on channel
0x0000fee0 [unknown] BAR/PFIFO_WRITE/FB reason: PAGE_NOT_PRESENT
Strangely, when connecting an external monitor to the laptop (MacBook Pro mid
2009, same cards), the GUI isn't scrambled any more and the console still is,
but in a "better way".
I'll try to find why with an external monitor or with acceleration on the 9400,
the handover goes well.</pre>
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