Comment 10 for bug 914437

get-edid does not show the EDID of the monitor with the broken EDID.

Booting 11.04, the monitor *works fine*. Nontheless dmesg shows the following, which is nearly the same as on 11.10 and 12.04:

[ 39.328047] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 254
[ 39.328048] [drm:drm_edid_block_valid] *ERROR* Raw EDID:
[ 39.328050] <3>ff ff ff ff ff ff ff ff 4d d9 50 1e 01 01 01 01 ........M.P.....
[ 39.328052] <3>01 0c 01 02 0e 1e 17 78 ea 7e a9 a0 58 4e 96 25 .......x.~..XN.%
[ 39.328053] <3>1e 48 4c a1 08 00 01 01 01 01 01 01 01 01 01 01 .HL.............
[ 39.328055] <3>01 01 01 01 01 01 64 19 00 40 41 00 26 30 18 88 ......d..@A.&0..
[ 39.328056] <3>36 00 30 e4 10 00 00 18 00 00 00 fd 00 30 41 1c 6.0..........0A.
[ 39.328058] <3>3d 0a 00 0a 20 20 20 20 20 20 00 00 00 fc 00 53 =... .....S
[ 39.328060] <3>44 4d 2d 53 35 31 0a 20 20 20 20 20 00 00 00 ff DM-S51. ....
[ 39.328061] <3>00 34 35 32 37 39 35 35 0a 20 20 20 20 20 00 97 .4527955. ..
[ 39.328062]
[ 39.328065] radeon 0000:01:00.0: DVI-I-2: EDID block 0 invalid.
[ 39.328067] [drm:radeon_dvi_detect] *ERROR* DVI-I-2: probed a monitor but no|invalid EDID

I don't see any "your hardware may be failing" message, neither a "fixing edid header" one. The resolutions in the display settings manager are detected nontheless - see screenshot display-settings-11.04.png