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I've just installed Ubuntu 13.10 through the installer on a Lenovo Thinkpad S540. I had no problems with the graphical installer.

However, after rebooting, X doesn't start. I just get a "The system is running in low graphics mode" error.

The graphics card is a "Intel Corporation Haswell-ULT Integrated Graphics Controller".

I've tried updating from the X-swat PPA as per instructions here: https://askubuntu.com/a/218095/258364. Made no difference.

It also fails if I reboot in "failsafe" mode.

Any ideas on what I can try? Thanks.

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I've had the same issue on my ThinkPad S540 after installed Ubuntu 13.10. The solution for me was to create /etc/X11/xorg.config file which was somehow missing:

sudo cp /etc/X11/xorg.config.failsafe /etc/X11/xorg.config

and then restart.

If you stuck on "The system is running in low graphics mode" page and Ctrl+Alt+F1 does not work to enter terminal mode then try to play with Enter / Tab / Windows+Left / Windows+Right shortcuts until the terminal mode appears ;)

jans
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