I played a bit with Xglx as of Sunday, Feb 20, 2005, and various OpenGL implementations available for Xorg 6.8.1 and r200 graphics card (PCI ID is 1002:5961 (rev 01)). Some remarks follow.
1) On Mesa and drm CVS as of Sunday, Feb 20, 2005, there are several artifacts. For reference, I have put a screenshot of Kedit window with Plastic theme at the following URL: http://ums.usu.ru/~patrakov/screenshot4.png As you can see, the vertical scroll bar contains many black horizontal stripes on that screenshot, while it should be solid. The top of some letters in the menu is cut off. There is also some strange black horizontal line at the top of the window decoration and also at the top of horizontal scrollbar. Strangely, running xcompmgr inside Xglx fixes most of those problems. 2) Same artifacts are present when using fglrx instead of the open-source driver. Is my video card OK or out of order? Could anyone please compare with non-ATI hardware renderers and post screenshots? If there are such "buggy" hardware renderers in the wild and one can't declare such video cards as broken (i.e. can't return them to the shop due to warranty), is the whole idea of hardware-accelerated Xglx viable? 3) I couldn't start Xglx at 1024x768 with Mesa as of Sunday, Feb 20, 2005 with LIBGL_ALWAYS_INDIRECT=1 in the environment. The error is: X Error of failed request: BadLength (poly request too large or internal Xlib length error) Major opcode of failed request: 145 (GLX) Minor opcode of failed request: 1 (X_GLXRender) Serial number of failed request: 85 Current serial number in output stream: 86 The largest possible screen size without this error is 64x64. 4) With libGL.so from fglrx, but LIBGL_ALWAYS_INDIRECT=1, there are no artifacts. -- Alexander E. Patrakov ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
