[Nouveau] [Bug 54700] Distorted graphics (double cursor) with GeForce 4200Go (NV28)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=54700

--- Comment #48 from Emil Velikov <emil.l.velikov at gmail.com> ---
Thanks this is enough on the image side.

So link2 (directfb) exhibits the same issue, although in X not everything is
affected. Same dimension image can be rendered with and without corruption,
next to each other :P Seems like on some instances nouveau_bo_new() is not
given the correct params (and/or the kernel does not like them :)

A couple of tests

1. Startup X with SWCursor, by adding "Option "HWCursor" "O"" in your
xorg.conf(see $man nouveau for more information)
Does the cursor render properly ?

2. Make sure nouveau_vieux_dri.so is available and confirm that you have 3d
acceleration $ glxinfo | grep render
The above command should give you
* direct rendering: Yes
* OpenGL renderer string: Mesa DRI nv28 *****
Startup glxgears and adjust the window size and note when corruption does and
does not occur

Example: @ 200x500 graphics are corrupted, at other sizes everything is fine
(or vice-versa)

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