Keeping the Screen Turned off While Getting Inputs

[Ahmad Nouralizadeh]

>> Those accesses might not stop with just the display off - some 
>> applications may keep redrawing.
Will these accesses cause iGPU or dedicated GPU accesses to the DRAM? I think that those redrawings originate from the processor.

>I'm not sure a graphical benchmark will run without a graphical system
>running?
Yes, VLC is one of the benchmarks and will not run without GUI.

>Maybe do the reverse of what I suggested. Run the benchmark but send>the output to a remote display.
Will it avoid screen activation in the local machine?

>Since IMC counters appear to be a feature of the powerpc architecture,
>you might get a better response from some list/forum specific to that
>architecture.
IMC stands for the Integrated Memory Controller. The DRAM controller has some internal counters for counting different types of memory accesses. For example, for my laptop it is documented here:https://software.intel.com/content/www/us/en/develop/articles/monitoring-integrated-memory-controller-requests-in-the-2nd-3rd-and-4th-generation-intel.html

Do you have any suggestions about the cause of the xrandr error? It works perfectly in the virtual machine!

  
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