Hello
my xrandr output in current sid is

Screen 0: minimum 320 x 200, current 1600 x 900, maximum 8192 x 8192
LVDS-1 connected 1600x900+0+0 (normal left inverted right x axis y axis)
0mm x 0mm
  1600x900      60.00*+
  1152x864      59.96
  1024x768      59.92
  800x600       59.86
  640x480       59.38
  720x400       59.55
  640x400       59.95
  640x350       59.77
VGA-1 disconnected (normal left inverted right xaxis y axis)
DVI-D-1 disconnected (normal left inverted right x axis y axis)
VGA-2 connected (normal left inverted right x axis y axis)
  1024x768      60.00
  800x600       60.32    56.25
  848x480       60.00
  640x480       59.94
DP-1 disconnected (normal left inverted right x axis y axis)

however, no monitor is really connected to vga-2.
In wheezy, the xrandr output is infact

Screen 0: minimum 320 x 200, current 1600 x 900, maximum 8192 x 8192
LVDS-1 connected 1600x900+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1600x900       60.0*+
   1152x864       60.0
   1024x768       59.9
   800x600        59.9
   640x480        59.4
   720x400        59.6
   640x400        60.0
   640x350        59.8
VGA-1 disconnected (normal left inverted right x axis y axis)
DVI-D-1 disconnected (normal left inverted right x axis y axis)
VGA-2 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)

The nuisance is that my screen starts at reduced resolution.
Best regards and thank you for your work

Fulvio Ciriaco

That's a kernel problem, if you don't intend to use the vga-2 output you
can disable it by booting with the video=VGA-2:d kernel parameter.  See
https://wiki.archlinux.org/index.php/Nouveau#Phantom_Output_Issue.

The phantom output is not going to deliver a valid EDID, and for such
outputs the kernel assumes a resolution of 1024x768.

Do you get this warning with the wheezy kernel as well?

Cheers,
       Sven