Hi. Installing Ubuntu 16.04, installing INTEL GRAPHICS UPDATE TOOL FOR LINUX* OS V2.0.4 didn't help. Except one.
> echo "options i915 enable_rc6=0" | sudo tee /etc/modprobe.d/i915.conf > sudo update-initramfs -k `uname -r` -u This command disable power-saving render C-state 6 for i915 driver. It helped me on Ubuntu 16.10 and 16.04. Also there are other powersaving possibly harmful for performance and stability parameters. They are: -enable_fbc -enable_dc Also you may look at `semaphores` parameter. To read all i915 parameters: > modinfo -p i915 This is a very useful link about intel graphic that I found: https://wiki.archlinux.org/index.php/intel_graphics @Jeffry R. Fisher: in logs(16.04) I had the same error as you, about missing DMC firmware. I didn't fix it and apparently will not. All this power-saving stuff makes no sense if you almost always work with power supply. Thank you and good luck. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1656155 Title: System (keyboard & touchpad) freezes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1656155/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
