OK, I'm getting better results with the following settings:
ALREADY TRIED: Disable VT-d(Intel Virtualization Technologies) in the BIOS /etc/default/grub: GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_pstate=disable" then $ sudo update-grub and /etc/modprobe.d/i915.conf: options i915 semaphores=1 then $ sudo update-initramfs -u NOT TRIED: /etc/X11/xorg.conf.d/20-intel.conf Section "Device" Identifier "old intel stuff" Driver "intel" Option "Shadow" "True" Option "DRI" "false" EndSection /etc/X11/xorg.conf.d/20-intel.conf Section "Device" Identifier "Intel Graphics" Driver "intel" Option "NoAccel" "True" EndSection /usr/share/X11/xorg.conf.d/20-intel.conf: Code: Section "Device" Identifier "Intel Graphics" Driver "intel" Option "AccelMethod" "uxa" EndSection -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/946899 Title: 8086:2a02 [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/946899/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs