Public bug reported: I found that LIBGL_DEBUG=verbose glxinfo reports some errors:
libGL: OpenDriver: trying /usr/lib/i386-linux-gnu/dri/tls/r300_dri.so libGL: OpenDriver: trying /usr/lib/i386-linux-gnu/dri/r300_dri.so 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://dri.freedesktop.org/wiki/glxinfo mentions "Surrounding these lines there may be additional messages indicating errors. In particular, if the driver is not found in the mentioned path, OpenGL will try to fall back to the software renderer called swrast_dri.so. This is an indication that the DRI drivers are not installed correctly." 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_NV_conditional_render, GL_ARB_draw_elements_base_vertex, 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+bzr20110929-0ubuntu6 compiz-core 1:0.9.6+bzr20110929-0ubuntu6 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. ** Affects: xserver-xorg-video-ati (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/927391 Title: LIBGL_DEBUG=verbose glxinfo reports errors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/927391/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
