I gather this is related to the low tolerance of faulty EDID I reported in https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1047156 Here's what I reported therein.
Solution: I've had to force the resolution with the following. xrandr --newmode "1440x900_60.00" 106.47 1440 1520 1672 1904 900 901 904 932 +HSync +VSync xrandr --addmode DVI-0 1440x900_60.00 xrandr --output DVI-0 --mode 1440x900_60.00 In place of the first line, the following also has worked for me --something I just got off the net, if I recall. xrandr --newmode "1440x900_60.00" 106.50 1440 1528 1672 1904 900 903 909 934 -hsync +vsync Now, I've had to automate it by placing that into ~/.xprofile Results: - X starts with the native mode 1440x 900 at 60 Hz, or just shy of 60, 59 if I recall. It blanks out black once or twice though. - lightdm sometimes entirely fits onto the physical screen, sometimes it doesn't. - It takes "forever" to reach lightdm. Expected results: I guess it goes without saying that the expected results should be that the system should auto-configure itself so as to not require user intervention. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1047146 Title: xorg fails to configure native 1440 x 900 on LCD widescreen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1047146/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
