I tested 2.6.39-rc3 and 3.0.0-rc2 kernel debs from mainline ppa (http://kernel.ubuntu.com/~kernel-ppa/mainline/) on a Dell SandyBridge laptop and a Lenovo i3-2310M laptop, both kernels work well when there is only one video output, eight LVDS or VGA (which means external-only mode and LCD-only work good).
But in the dual-head modes, either extend or mirror, sometimes but not always one output in that mode (either LVDS or VGA) will be lost. I performed several cycles, but seems the output is lost randomly. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/791752 Title: Can not toggle Display to External only mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/791752/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
