Buffer related input event bug? -- 1.4.1~git20080131

[Rohan Lean]

On Fri, 2008-07-25 at 10:50 +0200, Rohan Lean wrote:
> On Fri, 2008-07-25 at 08:59 +0930, Peter Hutterer wrote:
> > On Thu, Jul 24, 2008 at 02:45:30PM +0200, Rohan Lean wrote:
> > > Was there any change done between 1.3.0.0 and 1.4.1~git20080131 that
> > > would induce some seemingly buffer related bug in the forwarding of
> > > input events to clients?
> > 
> > the whole input subsystem was basically rewritten, so yes, there could very
> > well be such a change.
> > 
> > > Ever since I upgraded to Ubuntu 8.04, when I move the mouse fast in
> > > games, all input is being delayed and processed in large chunks until
> > > the situation stabilizes again after I have not moved the mouse at all
> > > for a while.
> > > My rough estimate for the speed at which this happens is 30cm/s at
> > > 1800CPI, or 21260C/s.
> > > The effect is exacerbated when I remove the CorePointer option from the
> > > mouse. Then it already happens at very low speeds.
> > > The bug does not occur on the Desktop itself.
> > > 
> > > I am fairly certain that it is related to xorg, as downgrading SDL to
> > > the version that was used before the distribution upgrade did not change
> > > anything.
> > 
> > could be DGA getting a bit excited then. anything interesting in the log
> > files?
> 
> I cannot see anything interesting in Xorg.0.log, but I have attached it
> anyway. Is there another file you want me to have a look at?

Is anyone looking into the issue? Do you need more information?

Sincerely,
Rohan Lean