Looking at your Xorg.0.log, X is not receiving any EDID information from
the TV. So it's defaulting to the VESA modes, maxing out at 1024x768.
Check an Xorg.0.log from booting a Lucid LiveCD to see if it did receive
correct EDID information in that case. If so, post a copy of the
Xorg.0.log and xrandr --verbose from that here.
Two useful ways to examine EDID:
1. xrandr --verbose; This lists edid in a hexadecimal block. This
corresponds to what X gets.
2. read-edid package; Run it as `get-edid | parse-edid`. This gets the
EDID directly from the hardware.
If one gives valid EDID data but the other doesn't, then it's a
legitimate X/kernel bug. If neither produce any EDID info, then it
starts looking more like a hardware issue. (The latter can be worked
around via xorg.conf and/or replacement EDID.) It's not at all unusual
for TVs not to provide EDID, but the fact that it used to work in Lucid
is intriguing and suggests there might be something more going on here.
For instance, it might be skipping EDID and using DDC or similar.
You could also try using the Option "IgnoreEDID" "True" in an xorg.conf
to force it to not try EDID detection for that TV.
** Changed in: xorg (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/973163
Title:
Xorg doesn't detect correct resolution of VGA Panasonic TV
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