As I see from the xrandr.log, there is two preferred mode (1366x768, 1440x900, marked with +), but no current mode(marked with *).
CRT1: 1366x768@0 +1366+0 (Unknown) Automatically configured outputs to deal with event Got RANDR event with timestamps change=14722 < config=160860 Ignored event as old and new config timestamps are the same Got RANDR event with timestamps change=14722 < config=198939 Automatically configured outputs to deal with event Got RANDR event with timestamps change=198939 = config=198939 Ignoring event since change >= config Got RANDR event with timestamps change=198939 < config=209747 Could not switch to the following configuration (timestamp 209747): requested position/size for CRTC 148 is outside the allowed limit: position=(1366, 0), size=(1366, 768), maximum=(1600, 1600) CRT1 connected (normal left inverted right x axis y axis) 1366x768 75.0 + 59.8 1440x900 59.9 + 75.0 59.9 1600x1200 60.0 1400x1050 60.0 1600x900 60.0 1280x1024 75.0 60.0 1280x960 60.0 1360x768 75.0 60.0 1280x800 75.0 59.8 1152x864 75.0 60.0 1280x768 75.0 59.9 1280x720 75.0 60.0 1024x768 75.0 70.1 60.0 1024x600 75.0 60.0 800x600 72.2 75.0 60.3 56.2 800x480 75.0 60.0 720x480 75.0 60.0 640x480 75.0 72.8 75.0 67.0 59.9 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/869799 Title: [Dell inspiron M5110] no output while external VGA is connected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/869799/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs