Comment 12 for bug 1941854

I reviewed all the related bugs in sutton project, all the configs are AMD platforms. And found it failed when ram is bigger than 8G. And change to 20 for 8G could not fix all issues.

On M75n I found the difference is 28.34%, cause it used 2G shared memory for VRAM. And I could not change the value from BIOS.

Results:
        /proc/meminfo reports: 5.73GiB
        lshw reports: 8GiB

FAIL: Meminfo reports 2434531328 less than lshw, a difference of 28.34%. Only a variance of 10% in reported memory is allowed.

[ 0.746168] amdgpu 0000:04:00.0: amdgpu: VRAM: 2048M 0x000000F400000000 - 0x000000F47FFFFFFF (2048M used)
[ 0.746181] [drm] Detected VRAM RAM=2048M, BAR=2048M
[ 0.746246] [drm] amdgpu: 2048M of VRAM memory ready