[Bug 94708] Open source radeon drivers not working properly with Radeon HD 8550M

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94708

--- Comment #13 from Alex Deucher <alexdeucher at gmail.com> ---
(In reply to Arthur Hrast Essenfelder from comment #12)
> # vblank_mode=0 glxgears
> ATTENTION: default value of option vblank_mode overridden by environment.
> ATTENTION: default value of option vblank_mode overridden by environment.
> 35719 frames in 5.0 seconds = 7143.730 FPS
> 35715 frames in 5.0 seconds = 7142.853 FPS
> 34593 frames in 5.0 seconds = 6910.545 FPS
> 
> # DRI_PRIME=1 vblank_mode=0 glxgears
> ATTENTION: default value of option vblank_mode overridden by environment.
> 8298 frames in 5.0 seconds = 1659.484 FPS
> 8313 frames in 5.0 seconds = 1662.389 FPS
> 8315 frames in 5.0 seconds = 1662.897 FPS
> 

gears is not a good test for PRIME systems.  It basically tests how fast the
driver can swap buffers.  With PRIME the dGPU rendered buffers ends up getting
copied several times before getting to the IGP.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/dri-devel/attachments/20160503/2bd12409/attachment-0001.html>