Joe Btfsplk: > > On 6/28/2014 4:54 AM, Roger Dingledine wrote: >> On Fri, Jun 27, 2014 at 01:27:50PM -0500, Joe Btfsplk wrote: >>> Hardware acceleration is unchecked by default it Torbrowser. >>> >>> Other than some machines might not support it, is there a reason not >>> to enabled it? >>> >>> Some fingerprinting or other issue? >> https://trac.torproject.org/projects/tor/ticket/10531 >> which points to >> https://lists.torproject.org/pipermail/tor-talk/2013-June/thread.html#28620 >> >> >> Basically, some Windows systems were crashing when Tor Browser had >> hardware acceleration enabled. >> >> I think we made that change in TBB 3.5rc1: >> https://blog.torproject.org/blog/tor-browser-bundle-35rc1-released >> >> See the (alas not labelled with a ticket number) line: >> "Misc Prefs: Disable layer acceleration to avoid crashes on Windows" >> >> It looks from the various tickets like the issue is not entirely sorted >> for all users. >> > Thanks. Has it been determined whether hardware acceleration being > enabled can be detected for fingerprinting purposes? I think it can if you write some tests measuring and comparing the performance of particular browser features that may benefit from hardware acceleration being enabled. Georg
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