GUI interface “Disk drive for dev/mapper/cryptswap 1 is not ready yet or not present”

Discussion in 'Newbie Questions' started by Shan Berg Liew, Jun 15, 2015.

  1. Shan Berg Liew

    Shan Berg Liew Thread Starter
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    Hello, I have just recently installed Elementary OS freya and everything was working fine until today when I set the default brightness level using the instructions in http://askubuntu.com/questions/66751/how-do-i-set-default-display-brightness and later installing xSwipe touchpad driver just now following the instructions in http://www.elementarynow.com/multitouch-trackpads-luna/

    No problems occured on reboot after setting the default brightness level. As I installed the XSwipe and reached the reboot stage of the webpage, my laptop loaded with black screen and no GUI for awhile. I reboot and pressed Alt+F1 to look at the code interface. The first line of the code interface wrote

    Error "[drm:cpt_serr_int_handler] *ERROR* PCH transcoder A FIFO underrun"

    When I switch back to the GUI with the E logo, it showed “Disk drive for dev/mapper/cryptswap 1 is not ready yet or not present”

    Please help.
     

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