https://bugs.freedesktop.org/show_bug.cgi?id=60879
--- Comment #143 from Marek Olšák maraeo@gmail.com --- Created attachment 122225 --> https://bugs.freedesktop.org/attachment.cgi?id=122225&action=edit possible fix
Can you test the attached patch?
How to build the kernel: - use "git clone" to get the kernel source - go to the kernel directory - git am $patch_filename # apply the patch - cp /boot/config-`uname -r` .config # copy your current kernel config - make -j4 - sudo make modules_install - sudo make install