I see someone else has posted for the Dell XPS 15 l502x but I'll post this here in case OS-specific information is included (as I'm running Natty).
-- Dell System XPS L502X Not Specified -- 00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller]) 01:00.0 VGA compatible controller [0300]: nVidia Corporation Device [10de:0df4] (rev a1) (prog-if 00 [VGA controller]) -- ** Attachment added: "Dell XPS 15 L502x Sandy Bridge" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/312756/+attachment/1953070/+files/DSDT.dsl -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/312756 Title: MASTER: support graphics card hot switch -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs