[Bug 21874] some x11perf tests result in exa rendering to screen stopping until mouse is moved

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Aug 14 14:56:25 PDT 2009


--- Comment #2 from Andy Furniss <lists at andyfurniss.entadsl.com>  2009-08-14 14:56:24 PST ---
(In reply to comment #0)
> Created an attachment (id=26113)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=26113) [details]
> Xorg.0.log
> Card is radeon HD3850 AGP using git driver, xserver is also git. Problem exists
> using drm from agd5f R6xx branch or mesa/drm R6xx.
> Does not happen with exa disabled.
> Also happens with radeon driver.
> Running x11perf -v1.3 -all stops rendering to screen during the calibration of
> certain tests. This is not just the output to the results xterm and test
> window, but the whole screen (had a counter running in a separate xterm and
> switching metacity desktops doesn't display - though it works)
> To restart rendering the mouse needs to be moved until the problematic
> calibration has finished - the mouse is jerky while doing this.
> 8 tests trigger this -
> tiled rectangle, both 1x1 and 10x10 with 4x4, 161x145 and 216x208.
> 500-pixel solid circle and 500-pixel filled ellipse.
> All other tests run OK.

Reassigned to radeon as this is what I am testing with now and radeonhd
bugzilla  still has Luc as mail, so I don't even know if anyone at sees them!

Have just found that Option BusType PCIE fixes this.

It also fixes a similar issue I have just started to see with the mesa demos
morph3d and geartrain.

Interestingly using xserver/mesa/ddx/agd5f modules from todays' gits geartrain
using AGP renders properly as long as nothing else writes to the screen, so
moving mouse will cause artifacts. After 30sec however it will freeze and not
start again until something else writes to screen.

With BusType PCIE it has permanent artifacts but does not freeze.

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