Don't know if this is related: the Precise driver is silent about his edid results during boot, but the driver on Oneiric throws this error into syslog:
Mar 25 13:45:14 panda3-oneiric kernel: [ 26.662658] omapdss error: operation stopped when reading edid Mar 25 13:45:14 panda3-oneiric kernel: [ 26.662933] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 54 Mar 25 13:45:14 panda3-oneiric kernel: [ 26.662933] Raw EDID: Mar 25 13:45:14 panda3-oneiric kernel: [ 26.662933] 00 ff ff ff ff ff ff 00 4c 2d ae 01 30 32 52 42 Mar 25 13:45:14 panda3-oneiric kernel: [ 26.662994] 28 10 01 03 80 29 1f 78 2a ee 95 a3 54 4c 99 26 Mar 25 13:45:14 panda3-oneiric kernel: [ 26.662994] 0f 50 54 bf ef 80 a9 40 81 80 81 40 71 4f 01 01 Mar 25 13:45:14 panda3-oneiric kernel: [ 26.663055] 01 01 01 01 01 01 48 3f 40 30 62 b0 32 40 40 c0 Mar 25 13:45:14 panda3-oneiric kernel: [ 26.663055] 13 00 98 32 11 00 00 1e 00 00 00 fd 00 38 4b 1e Mar 25 13:45:14 panda3-oneiric kernel: [ 26.663055] 51 11 00 0a 20 20 20 20 20 20 00 00 00 fc 00 53 Mar 25 13:45:14 panda3-oneiric kernel: [ 26.663116] 79 6e 63 4d 61 73 74 65 72 0a 20 20 00 00 00 ff Mar 25 13:45:14 panda3-oneiric kernel: [ 26.663146] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Obviously, the driver reads the last line during boot as zeroes. After the system has booted, the missing line is there: output of xxd /sys/devices/platform/omapdrm.0/drm/card0/card0-HDMI-A-1/edid: 0000000: 00ff ffff ffff ff00 4c2d ae01 3032 5242 ........L-..02RB 0000010: 2810 0103 8029 1f78 2aee 95a3 544c 9926 (....).x*...TL.& 0000020: 0f50 54bf ef80 a940 8180 8140 714f 0101 .PT....@...@qO.. 0000030: 0101 0101 0101 483f 4030 62b0 3240 40c0 ......H?@0b.2@@. 0000040: 1300 9832 1100 001e 0000 00fd 0038 4b1e ...2.........8K. 0000050: 5111 000a 2020 2020 2020 0000 00fc 0053 Q... .....S 0000060: 796e 634d 6173 7465 720a 2020 0000 00ff yncMaster. .... 0000070: 0048 5348 4c41 3031 3434 350a 2020 0012 .HSHLA01445. .. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/964901 Title: omapdrm driver sets wrong resolution on HDMI/DVI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-meta-ti-omap4/+bug/964901/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
