User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b5pre) Gecko/20100818 Minefield/4.0b2pre ( LIKE Firefox/3.6 ) Build Identifier: Gecko/20100811 There's little information other than it works in the 2010-08-10 build, but is broken in 2010-80-11. Didn't notice it until D2D had been re-enabled and the tinderbox builds are not available anymore. It should be in this range: http://hg.mozilla.org/mozilla-central/pushloghtml?enddate=2010-08-12&startdate=2010-08-09 Tested only on my Windows7 system using a GeForce 7900 Go GS (which works perfectly in the 2010-08-10 build). Reproducible: Always Steps to Reproduce: 1. Install 2010-08-10 2. Enable D2D with render-mode and directwrite 3. Check if D2D is enabled 4. Install 2010-08-11 5. Check if D2D is enabled Actual Results: No acceleration in 2010-08-11 Expected Results: Acceleration in 2010-08-11
There's already a fix to this in bug 587566.
Sorry, at some point we really need tags in Bugzilla. I was searching for "D3D9" and "DX9", not "non-DX10" or "non-D3D10"