problem with webgl with chrome and ATI card

view full story

http://askubuntu.com – i have ATI Mobility Radeon HD 5470 512 MB run with the open source driver , and i'm using firefox and chrome in firefox webgl working and http://get.webgl.org/ says that it support it . but with chrome it's different the website say that chorme doesn't support webgl - i enabled it form flags - and when i open chrome://gpu-internals its said : WebGL: Unavailable. Hardware acceleration disabled. and every thing else working . any help to run webgl in chrome note : i tried to run chrome from terminal with : google-chrome --enable-webgl (HowTos)