I have been getting errors:
[ 23.059448] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* pipe A underrun
[ 23.069273] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* pipe B underrun
[ 23.069325] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
Plus a few more errors similar to these "PIPE" and "CPU" come up when trying to boot any os from a usb drive. I also noticed a reduction in performance with GPU intensive programs.
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I should add pipe errors come up when I have to type in my password to unlock my screen from the screen saver, sometimes I have to reboot, sometimes I don't.
Also it does not open light locker settings so I can't turn the screen saver off.
One other problem I have had for about a year now is I can't shut down my pc unless I hold down the power button, no matter the os. I tried many codes and different os's with no luck.
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The most darned thing about this is if I'm watching a video and change the resolution to 144p it gets extremely bad and my CPU usage goes off the charts.
I have determined its not the browsers, not the video player and not the os.
Can someone help me.
Edited by reach1, 27 March 2016 - 03:02 PM.