I've used Linux Mint 18 for a long time, but recently a strange problem has come up and I'd like to know how to understand the cause. Sometimes, especially during high CPU usage, mingled and ghost characters and other strange artifacts appear.
How to investigate the problem?
Sometimes the problem disappears when the high load terminates, but mostly I have to reboot the computer.
The problem doesn't come up when using Windows.
description: VGA compatible controller product: Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 09 width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:31 memory:f7800000-f7bfffff memory:e0000000-efffffff ioport:f000(size=64)
I didn't manually update drivers/configuration, but I updated Mint as usual.
sensors returns (invoked just before launching GIMP and thus raising the glitch):
acpitz-virtual-0 Adapter: Virtual device temp1: +27.8°C (crit = +92.0°C) temp2: +29.8°C (crit = +92.0°C)
coretemp-isa-0000 Adapter: ISA adapter Physical id 0: +34.0°C (high = +87.0°C, crit = +91.0°C) Core 0: +34.0°C (high = +87.0°C, crit = +91.0°C) Core 1: +28.0°C (high = +87.0°C, crit = +91.0°C)
asus-isa-0000 Adapter: ISA adapter cpu_fan: 0 RPM