The same situation is for manually installed drivers 295.49. Graphics card: NVIDIA 8800 GTS (320MB RAM).
When activated Youtube's HTML5 beta - during playback of any videos there is too high CPU usage of firefox (>50%) + compiz (>30%) + Xorg (20%). Video was not HD - just 360p. When playback is stopped or other tab is being wathech the use cpu usage of firefox drops to cca. 7% or 27% respectively. The format of the video is probably webm - or whatever is youtube serving as html5 videos. The fullscreen mode playback is unusable - it is being refreshed too slowly - cca. each 2-3 seconds. After while it restarts X and offers login screen. When Youtube's HTML5 beta is deactivated - i.e. it is played via flash, the situation looks normal - firefox uses cca 10% of CPU, plugin- container (decoding flash) about 30%. Compiz (20%) + Xorg (10%) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/993363 Title: html5 video crashes in firefox 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/993363/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
