Comment 17 for bug 853056

I have the same problem, nvidia closed source driver (295.20) apparently prevents my screen from being recognized properly in gnome-control-center, while it's recognized when using the nouveau driver.

I also noticed that the EDID information does not show up in xrandr...:

$ xrandr -q --verbose | head -20
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 320 x 175, current 1920 x 1200, maximum 1920 x 1200
default connected 1920x1200+0+0 (0x161) normal (normal) 0mm x 0mm
 Identifier: 0x160
 Timestamp: 27868
 Subpixel: unknown
 Clones:
 CRTC: 0
 CRTCs: 0
 Transform: 1.000000 0.000000 0.000000
             0.000000 1.000000 0.000000
             0.000000 0.000000 1.000000
            filter:
  1920x1200 (0x161) 115.2MHz *current
        h: width 1920 start 0 end 0 total 1920 skew 0 clock 60.0KHz
        v: height 1200 start 0 end 0 total 1200 clock 50.0Hz
  1920x1080 (0x162) 105.8MHz
        h: width 1920 start 0 end 0 total 1920 skew 0 clock 55.1KHz
        v: height 1080 start 0 end 0 total 1080 clock 51.0Hz
  1680x1050 (0x163) 91.7MHz
        h: width 1680 start 0 end 0 total 1680 skew 0 clock 54.6KHz

...whereas it's correctly recognized in nvidia-settings (Apple Cinema HD) and can be acquired and later decoded with parse-edid:

$ parse-edid < ~/edid.bin
parse-edid: parse-edid version 2.0.0
parse-edid: EDID checksum passed.

 # EDID version 1 revision 3
Section "Monitor"
 # Block type: 2:0 3:ff
 # Block type: 2:0 3:fc
 Identifier "Cinema HD"
 VendorName "APP"
 ModelName "Cinema HD"
 # Block type: 2:0 3:ff
 # Block type: 2:0 3:fc
 # Block type: 2:0 3:0
 # DPMS capabilities: Active off:yes Suspend:no Standby:no

 Mode "1920x1200" # vfreq 59.950Hz, hfreq 74.038kHz
  DotClock 154.000000
  HTimings 1920 1968 2000 2080
  VTimings 1200 1203 1209 1235
  Flags "-HSync" "+VSync"
 EndMode
 # Block type: 2:0 3:ff
 # Block type: 2:0 3:fc
 # Block type: 2:0 3:0
EndSection

I don't know whether it's worth saying, but ICC profiles can be applied via the command-line, although with some warnings:

$ dispwin ~/AppleCinemaHD-20120304.icc
XRandR 1.2 is faulty - falling back to older extensions