Comment 20 for bug 148247

hi, Timo, is this the upstream bug?
https://bugs.freedesktop.org/show_bug.cgi?id=13389

From that discussion, I'm curious why it is not possible to update hardy's current libdrm version with one that supports ttm and then try Dave Airlie's ttm-based intel-batchbuffer branch (http://cgit.freedesktop.org/~airlied/xf86-video-intel/?h=intel-batchbuffer), or Carl Worth's recent work in exa compositing performance (http://cgit.freedesktop.org/~cworth/xf86-video-intel/) or xorg's upstream intel-batchbuffer (http://cgit.freedesktop.org/xorg/driver/xf86-video-intel/log/?h=intel-batchbuffer), since there are people who could make it work (?) (https://bugs.freedesktop.org/show_bug.cgi?id=13389#c10).

btw, these two urls seem to be relevant to understanding this slowdown in exa performance with g965:
http://cworth.org/exa/i965/emulating_speedups/
http://cworth.org/exa/i965/synchronous_composite/