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Description of problem: Lenovo T520 (Sandy Bridge) docked with DVI display connected and laptop lid closed. Fedora enables the display but nothing shows on it. X error as listed in attached Xorg log. Version-Release number of selected component (if applicable): xorg-x11-drv-intel-2.17.0-1.fc16.i686 How reproducible: Always. Steps to Reproduce: 1. Start Fedora with laptop closed and display connected and powered up 2. Wait for GDM login screen Actual results: Blank display (but power is on, i.e. it's not in power save mode) Expected results: Actual working Fedora display. Additional info: I can coax the system into working by toggling the display using Fn-F7 to get to mirror mode and then shutting off the laptop display with the Displays applet.
Created attachment 535208 [details] Xorg log showing the error
Please boot with drm.debug=4 on the kernel command line, and attach dmesg from a boot in the failing configuration.
Created attachment 537692 [details] dmesg output on failing boot Adam - I captured a dmesg after a failed X session at boot. First time I've mucked with grub2 so let me know if this file does not contain what you need. Thanks for looking!
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Fedora 16 changed to end-of-life (EOL) status on 2013-02-12. Fedora 16 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.