have you missed the part where I wrote that setting VideoRam to 65536 solved
the problem entirely and I have fluent flash video now without any other
changes?
according to manpage intel(4) the default for the intel driver is not 256MiB
but something around 20 MB:
http://www.x.org/archive/X11R7.5/doc/man/man4/intel.4.html
please don't mark a bug invalid just because you can't currently track
down the cause of it. it was there, and it was worked around as
described.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Invalid => New
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https://bugs.launchpad.net/bugs/1183303
Title:
Flash video too slow due to insufficient video RAM
Status in “xserver-xorg-video-intel” package in Ubuntu:
New
Bug description:
flash video was unwatchable slow on my eeePC (which uses integrated video
RAM), especially when used on a external monitor/projektor with higher
resolution. regular video using VLC or mplayer did not have this problem.
this seems to be because of insufficient video RAM, creating an xorg.conf and
setting VideoRam to 65536 solved the problem.
something around 20 mb is the default according to intel(4), which apparently
is not enough. I can only speculate that flash uses some kind of unaccelerated
fallback code when it can't allocate enough video RAM.
the web is full of "why is flash so slow on linux?" posts, with barely
any solutions, so you might wanna consider increasing the default.
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