Sometimes I'm quick enough to go to TTYS1 and then I get to see some messages such as 'HARD LOCKUP on CPU0' and 'HARD LOCKUP on CPU1'. After upgrading to 16.04 'Xenial' (which doesn't support fglrx module/driver) amdgpu module is loaded by default but very frequently hangs the entire system. When I used XUbuntu 14.04 'Trusty' with AMD's fglrx (proprietary) driver I didn't experience such issue. I usually select the 'Molecule' screensaver (it uses OpenGL), then I click the 'preview' button and wait for about 20 seconds, then I click the touchpad and the computer hangs. Only solution is to power off my laptop (press and hold the power button). I can still turn the keyboard LED backlight on and off (hence: keyboard doesn't stop working) but the pointer won't move (touchpad is locked) and I can't Ctrl-Alt-F (switch TTY/terminals). I have Xscreensaver installed and noticed that when it's running an OpenGL animation (screensaver) and I move the touchpad pointer the screen freezes. PROBLEM: system hangs / freezes very frequently. OPERATING SYSTEM: 64-bit GNU/Linux XUbuntu 16.04 'Xenial' CPU-integrated: Intel Corporation Broadwell-U Integrated Graphics (driver: i915)

Amd radeon r7 m260 bad fps 2016