[Intel-gfx] setting primary in multihead xorg.conf causes disregard of DisplaySize

[Felix Miata]

Possibly some fault overlap with
https://bugs.freedesktop.org/show_bug.cgi?id=90842 but this is not the same.
I found no other filed bugs similar.

Both DisplaySize and primary display assigned as I wish with radeon.

Both DisplaySize and primary display assigned as I wish with nouveau.

With Intel I must choose between having the DPI I want, or having the primary
display assigned as I wish. Unlike nouveau and radeon, intel won't let me
have both, at least, not using a comparable xorg.conf. I tried on two
different Intel gfx machines (both 4 series, one with pair of 1920x1080,
other with 1680x1050 and 1920x1080), with same failing result.

I ask here before filing a bug to see it there is a workaround or some
specific setup requirement that intel requires and neither radeon nor nouveau do.

Xorg.0.log with DisplaySize disobeyed:
http://fm.no-ip.com/Tmp/Linux/Xorg/xorg.0.log-gx760-dualIntel-goodPrimary-badDPI

Xorg.0.log with Primary disobeyed:
http://fm.no-ip.com/Tmp/Linux/Xorg/xorg.0.log-gx760-dualIntel-badPrimary-goodDPI

config file as last used:
http://fm.no-ip.com/Tmp/Linux/Xorg/xorg.conf-intel-1920x1080overunder-120

configs as work with nouveau and radeon:
http://fm.no-ip.com/Share/Linux/xorg.conf-radeon-vga1680x1050below-dvi1920x1080above-120
http://fm.no-ip.com/Share/Linux/xorg.conf-nouveauDualDVI-1680x1050under-1920x1080over-120
-- 
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/