LIBGL_DEBUG=verbose glxinfo reports errors
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
xserver-xorg-video-ati (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
Bug Description
I found that LIBGL_DEBUG=verbose glxinfo reports some errors:
libGL: OpenDriver: trying /usr/lib/
libGL: OpenDriver: trying /usr/lib/
libGL: Can't open configuration file /etc/drirc: No such file or directory.
libGL: Can't open configuration file /home/user/.drirc: No such file or directory.
libGL: Can't open configuration file /etc/drirc: No such file or directory.
libGL: Can't open configuration file /home/user/.drirc: No such file or directory.
I did some digging around and found that http://
Having said the above, I would assume the below to report software rendering but it doesn't.
glxinfo | grep render
direct rendering: Yes
OpenGL renderer string: Gallium 0.4 on ATI RV530
GL_
So in any case, it seems Ubuntu has a problem correctly installing DRI drivers. The thing that confuses me is that I seem to have accel because I can run Unity 3D, direct rendering is listed as "Yes" (see below), and most of the desktop effects I run do so reasonably well, although I'm not impressed with a rating of 303 frames in 5.0 seconds. But then again I'm no expert and perhaps do not distinguish between accel, 2D, and 3D in a more than superficial manor. Despite my limitations of knowledge, I believe the the above error suggests a problem of sort sort, perhaps fine grained.
Software
Release
Description: Ubuntu 11.10
Release: 11.10
xorg 1:7.6+7ubuntu7.1
Compiz
compiz 1:0.9.6+
compiz-core 1:0.9.6+
compiz-plugins-main 1:0.9.6-0ubuntu4.2
Hardware
First generation (2006) Intel MacBook Pro (Intel Core Duo, aka Yonah based processor) with an ATI Mbility Radeon X1600 video card.
There is no error here. /etc/drirc and ~/.drirc don't exist by default and are not needed.
300 frames in 5 seconds = 60fps, which means that you have vsync enabled (60Hz = 60fps). You can turn vsync off and get bigger numbers in glxgears, but then you risk tearing.
I'm marking this invalid. Feel free to change it back if you disagree with the above.