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Booting Ubuntu 14.10 on tablet with Intel Z3740 CPU, but when booting without nomodeset parameter, video blinks and goes black (backlight seems to be still on) after this message:

fb: switching to inteldrmfb from EFI VGA

Is there any way to debug boot after screen goes dark and there's no way to get console output? After quite a few boot ups it seems to work randomly, but successul boot is very rare.

joshas
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1 Answers1

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You probabaly have a broken xorg.conf file.

Open a tty by pressing Ctrl+Alt+F2 and type the following commands and login using your username and password.

Now type the following command :

sudo dexconf -o /etc/X11/xorg.conf

This will generate a new xorg.conf file.

Sachin S Kamath
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