Modesetting can't switch back from a software to a hardware cursor (patch to follow)

[Michael Thayer]

On 02.03.2016 18:43, Michael Thayer wrote:
> At present if modesetting ever fails to set a hardware cursor it
> switches back to a software one and stays that way until it is unloaded.
>   The following patch should fix that.  I say "should" because I had
> difficulties testing it - the cursor simply disappeared when it should
> have been rendering in software, though the debugger showed that
> pixman_image_composite() was getting called whenever the cursor moved,
> and my kernel driver was getting dirty rectangle information.  My
> feeling is that the patch is correct and something else is broken.  I
> have not investigated in depth in case some one else immediately has an
> idea.

My apologies for the noise.  Without going into detail, the failure to 
show the software cursor was due to the unclean way in which we 
(VirtualBox) handle 3D acceleration, and nothing to do with the X server 
or modesetting.  I tested my patch again, taking this into account, and 
it worked as expected.

Regards,

Michael
-- 
Michael Thayer | VirtualBox engineer
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