Have run across a bit of a bizarre problem. I am running 64 bit Arch Linux with fluxbox, chromium, ATI Radeon HD 4650 (xf86-video-ati), and flashplugin-prerelease (flash-square from AUR). Flash has worked great for weeks but all of the sudden started getting laggy in fullscreen. The odd thing is that if I make the video "pop out" and manually enlarge the window to full screen it runs great. I have tried installing firefox and testing in there but this makes no difference; I likewise tried installing catalyst which only made flash crash every time I hit full screen. I have also tried uninstalling flash and joining the html5 trial on youtube; the videos do the same thing and get laggy the moment I hit full screen (but not when manually edited).
It seems to me that the issue may be with my video card. I can not think of anything that I was doing during this time period that may have caused this sudden problem (http://tinypaste.com/927e78
- the packages that have been upgraded today). Does anyone have any suggestions?