Problem: drm/gma500_gfx on fit-pc2 shows only half of the screen
Alan Cox
alan at linux.intel.com
Sat Jan 28 12:37:50 PST 2012
> top half of the screen after booting on my fit-pc2 [1]. The bottom
> half keeps the last output of the console. During booting the console
> is shown on the complete screen in the correct monitor resolution.
I have an idea what that is actually and I've seen similar on Fedora I
think
Can you do the following. In gma500/framebuffer.c find the code that
reads
info->flags = FBINFO_DEFAULT;
if (dev_priv->ops->accel_2d && pitch_lines > 8) /* 2D engine */
info->fbops = &psbfb_ops;
else if (gtt_roll) { /* GTT rolling seems best */
info->fbops = &psbfb_roll_ops;
info->flags |= FBINFO_HWACCEL_YPAN;
} else /* Software */
info->fbops = &psbfb_unaccel_ops;
and change it to read
info->flags = FBINFO_DEFAULT;
info->fbops = &psbfb_unaccel_ops;
and see if that fixes it.
If so I know what is going on.
Alan
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