Solved!!!!! Solved!!!! After getting frustrated with this big display, I hot-plugged to a Dell 17" 1280x960 monitor and noticed noting changed except Monitor was correctly detected as "Dell 17". Then, I restarted, still no change in resolution - stuck in 1024x768.
And I did old the trick - removed xorg.conf file (renamed it actually) and see if Ubuntu can auto-generate a new one with correct resolution and voila! It did! I got the proper 1280x960 and "Dell 17". But I found no xorg.conf was auto-generated by Ubuntu. So, shutdown and plugged back my Acer 1440x900 and turned it on. Now am on the correct resolution. Still, no xorg.conf file in /etc/X11/. NO EDID ERRORS in dmesg!!!! Am happy now. Silly, I didnt try the old trick. But I did during the initial testing stages (beta releases). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/712075 Title: [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs