I think the problem are the default sync values in xorg.conf:
HorizSync 28-51
VertRefresh 43-60
Therefor the autodetection for the correct resolution fails with:
(--) NV(0): Panel size is 1920 x 1200
(II) NV(0): Using hsync ranges from config file
(II) NV(0): Using vrefresh ranges from config file
...
(II) NV(0): Not using default mode "1920x1200" (hsync out of range)
And if you enter specific mode lines (or probably adjust HorizSync value) it somehow gets forced.
So, who is adding those default values and can they get bumped/removed.
I think the problem are the default sync values in xorg.conf:
HorizSync 28-51
VertRefresh 43-60
Therefor the autodetection for the correct resolution fails with:
(--) NV(0): Panel size is 1920 x 1200
(II) NV(0): Using hsync ranges from config file
(II) NV(0): Using vrefresh ranges from config file
...
(II) NV(0): Not using default mode "1920x1200" (hsync out of range)
And if you enter specific mode lines (or probably adjust HorizSync value) it somehow gets forced.
So, who is adding those default values and can they get bumped/removed.