Created attachment 33214 [details] tar of directory containing attachments listed above Radeon driver is apparently incorrectly returning ENOMEM during OpenGL drawing. Bug is easily reproducible: download SnapPy from http://www.math.uic.edu/~t3m/SnapPy/doc/ and follow install instructions (I built from source). Start SnapPy and enter ((Manifold('4_1')).cusp_neighborhood()).view() Program will terminate with python: vbo/vbo_save_api.c:217: map_vertex_store: Assertion `vertex_store->buffer' failed. This appears to be a result of the ENOMEM. Using identical software versions on another PC (see below, but single head X configuration) and Intel driver, program works correctly. strace excerpt is attached, showing all system calls after entry of "((Manifold...". Linux kernel 2.6.32 (.config file and system log excerpt from X startup attached) Xorg 7.5.2 (Xorg.0.log and xorg.conf attached) libXau 1.0.5, libXdmcp 1.0.3, libdrm 2.4.14, Mesa 7.6, xorg-server 1.7.1 Radeon X850XT video card, connected to dual SyncMaster 730B monitors If you enter instead ((Manifold('4_1')).cusp_neighborhood()).view(cutoff = 0.5) and attempt to zoom in using the sliders, system locks up hard (Alt-SysRq does not even work).
3d driver issue.
Does mesa 7.7 branch or git master work any better?
sorry for the delay... git clone mesa/mesa today - necessitated upgrade to dri2proto-2.2, glproto-1.4.11, libdrm-2.4.17 rebuilt mesa - no change in behavior.
Back after long delay; sorry! Upgraded libdrm to 2.4.15 Mesa to 7.7.1 xorg-server to 1.7.7 No change in symptoms. I don't believe I can upgrade further without rebuilding entire system due to dependencies (ie., Mesa 7.8.2 requires libdrm 2.4.19 which requires atomic ops not supported by my compiler). Is there any expectation that this is fixable within xorg 7.5?
Sorry - previous comment neglected to mention upgrade xf86-video-ati to 6.12.7
The classic r300 driver has been abandoned long ago. It was replaced by the Gallium driver r300g. If you have issues with r300g please file a new bug report with component Drivers/Gallium/r300 Thanks.
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.