OK weird. After lots of playing around/rebooting/messing with mode
lines in xorg.conf/etc. I solved it.
I solved it by bringing down X (sudo /etc/init.d/gdm stop), then TURNING
OFF the monitor's power, then turning on the monitor,then starting X
again. After I did that, xrandr was able to see my monitor:
Screen 0: minimum 320 x 200, current 1920 x 1200, maximum 1920 x 1200
default connected 1920x1200+0+0 0mm x 0mm
1920x1200 60.0*
...
and the X server was able to use EDID to learn about it:
(II) fglrx(0): Connected Display1: CRT on primary DAC [crt1]
(II) fglrx(0): Display1 EDID data ---------------------------
(II) fglrx(0): Manufacturer: PTS Model: 961 Serial#: 16843009
(II) fglrx(0): Year: 2007 Week: 30
(II) fglrx(0): EDID Version: 1.3
(II) fglrx(0): Analog Display Input, Input Voltage Level: 0.700/0.300 V
(II) fglrx(0): Sync: Separate
(II) fglrx(0): Max H-Image Size [cm]: horiz.: 52 vert.: 32
(II) fglrx(0): Gamma: 2.20
(II) fglrx(0): DPMS capabilities: StandBy Suspend Off; RGB/Color Display
...
I'm not sure if there's any bug that can be fixed here; this is not the
world's most high quality monitor. I wonder if it was just a hardware
glitch that kept it from responding properly to EDID requests even after
reboots etc.?
--
[Hardy] After upgrade today can't detect screen size
https://bugs.launchpad.net/bugs/214165
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