i read this on ubuntuforum: full support for the integrated graphics found on Arrandale processors (Arrandale is the code name for an Intel processor, initially sold as mobile Intel Core i3, i5 and i7) requires version 2.10.0 of the intel xorg drivers.
http://intellinuxgraphics.org/2009Q4.html "* Improved support for Intel® HD Graphics (in Intel® 2010 Core i7/i5/i3 Processor Series)." You can upgrade to this version via the xorg-edgers ppa: https://launchpad.net/~xorg-edgers/+archive/ppa -- black screen on Intel HM55 - during boot and Xorg https://bugs.launchpad.net/bugs/518938 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
