To get a better feel for when / how this happens, can you let me know what is effected (display power / brightness controls / crash when closing lid etc..) if you remove the "video" ACPI module: sudo rmmod video
This may identify if the bug is in the driver / BIOS, or can be avoided. If this avoids the crash, we've learned a lot. If it still crashes, we may have learn't a little. Can you report the output of: cat /proc/acpi/video/*/DOS (Before and after removing the video module) Can you run: sudo cat /proc/acpi/dsdt > ~/dsdt.aml and attach the dsdt.aml file created in your home-dir. (It _might_ be useful to take a look at the ACPI firmware from one or more affected machines.) -- xserver-xorg-video-intel hangs the system when laptop lid is closed https://bugs.launchpad.net/bugs/138256 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
