Flickering/depth problems on HD4350 and Ubuntu Maverick alpha's

[Michel Dänzer]

On Mon, 2010-08-30 at 01:15 +0100, Dr. David Alan Gilbert wrote: 
> Hi,
>   I'm running an HD4350 (RV710) on an Intel i7, and I'm running the current
> ubuntu maverick alpha series and I'm seeing what to me appears to
> be a depth/layering problem.  This worked on the Ubuntu Lucid version
> with the xorg-edgers set - I haven't tried Maverick with edgers or
> lucid without yet.
> 
> The simplest example is on the game Assault Cube; it's a pretty
> standard quake clone like thing with a 3d landscape which you wonder
> around pointing the normal assortment of weapons.  However
> on these newer versions I'm seeing the weapon and some of the menus
> and stuff only be visible some of the time - so the weapon sometimes
> flickers in and out of view and some of the landscape appears and
> disapears as well.
> 
> I've also noticed on Google Earth that during startup I can see
> what appears to be throught he planet and the back of it; this settles
> down once I zoom in, but even then I see all of the overlay data
> (roads, pointers to photos etc) flicker on and off to be replaced by
> just the underlying satellite view.
> 
> How many other people are seeing this - is there any useful
> diagnostics I can try?
> 
> It's using KMS; the only warning seems to be about Color tiling
> not being support on R600/R700.
> 
> 2d seems fine.

I think this should be fixed by Mesa Git commit
646d2e9fbc41bf49075013009e9583bec4a51168 ('radeon: Add DRI2 flush
extension support, so we synchronize properly.').


-- 
Earthling Michel Dänzer           |                http://www.vmware.com
Libre software enthusiast         |          Debian, X and DRI developer