https://bugs.freedesktop.org/show_bug.cgi?id=46796

--- Comment #11 from jonathan jonathan.voss@gmail.com 2012-03-12 16:41:14 PDT --- I think this patch works as intended. Well actually, it's hard for me to say it actually fixed the problem due to its random nature, but I haven't had the mouse corruption issue on this patched driver, and the message appears in dmesg:

[ 524.112945] [drm] Fixing large cursor offset 0x0d1e0000 >= 0x00000000 [ 537.020931] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id [ 537.308976] [drm] Fixing large cursor offset 0x0cf80000 >= 0x00000000 [ 607.000940] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id

I have to say that the log confuses me since 1 << 27 is not 0.