I have an office issued thinkpad W500 laptop which has "switchable graphics"
That is, on OSen that support it, such as Vista / Win 7, the graphics processor will automatically switch from an ATI Radeon to an onboard Intel 915 when on battery / in power saving mode etc. There are two graphics processors installed that you can switch between on the fly. On the ubuntu lucid that I just installed on this laptop, it detected and used the intel agp card, providing rather slow, jerky video. When I tried to use radeon for my X - either using the open source ati / radeon or the closed source fglrx drivers, X locked up solid .. black screen. And thanks to ubuntu being super helpful about launching FAST into an X session (gdm) without showing you things like grub boot menus, etc .. well, that meant I couldnt even get into the laptop (I could ssh in, remove xorg.conf and restart gdm, after which it got back to using the intel card). After breaking my head over Xorg.0.log multiple times, I at least came to a very interesting entry that said "disable switchable graphics in the bios". I did that - and it immediately booted into X using the ATI card. A little digging I did after that came up with these useful links which I plan to try out later rather than sooner (it being my work laptop, a little caution is required). http://linux-hybrid-graphics.blogspot.com/2010/07/using-acpicall-module-to-switch-onoff.html and http://asusm51ta-with-linux.blogspot.com/ Also - https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/312756 srs ------------------------------------------------------------------------------ Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev _______________________________________________ linux-india-help mailing list linux-india-help@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-india-help