I've downloaded the new version of tvservice from git and done a dump. Hopefully you can retrieve it from this link: http://dl.dropbox.com/u/5170394/edid.dat
The other commands you mentioned in post 9 (of the other thread) just return 'Group CEA has 0 modes:' 'Group DMT has 0 modes:'
From what I am reading, these commands are supposed to interegate the display for what modes it supports, right? If this is the case, is my cheap LG TV at fault?
Oh and I've had a look at that dumped file. It shows a line of symbols and the model number of my TV (M228WD-BZ)