radeon_cursor

[Keith Packard]

Around 11 o'clock on Jan 13, Thomas Winischhofer wrote:

> Using the HW cursor, I get lockups quite frequently (because the kernel
> device blocks concurrent read/writes). Using the SW cursor works just fine.
> 
> My suspiction is that the HW cursor's position setting gets hung in the
> wait queue, producing a "classic" race.

You can disable asynchronous mouse motion for such devices; it's really 
only suitable for devices where you can poke the sprite location registers 
at any time.

In a perfect world, the mouse location would be handled by the kernel 
driver for the card and probably be updated at vrefresh time when the card 
was in a suitable state.

-keith


-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 228 bytes
Desc: not available
URL: <http://lists.x.org/archives/xorg/attachments/20050113/0589ed6a/attachment.pgp>