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I have a dell inspiron which I bought few months ago, it came with ubuntu 14.04, it was going well until I upgraded to 17.10, when I power on the system it boots up ask me to enter decrypt password I enter it, it shows me the ubuntu logo and then black screen, it does not put me into the login screen, then I manually power off the system with power button, I repeat these steps until I get the login screen, I get login screen after 4-5 reboots.

I installed a boot repair tool and logged my system info in the following link,

http://paste.ubuntu.com/26200594/

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  • when you reach black screen press ctrl+alt+f2 it will get you to tty2; login and debug; instead of rebooting maybe just restart display manager; see ps aux | grep -i dm might be gdm..
    – user688056
    Dec 17, 2017 at 12:51
  • By black screen I mean nothings happening, not even ctrl+alt+del .
    – user664724
    Dec 17, 2017 at 13:42

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After weeks of R & D, I found a solution, I updated linux kernel, previously it was 4.13 now its 4.15. You can download latest kernel from the following link,

http://kernel.ubuntu.com/~kernel-ppa/mainline/

After downloading all the .deb files you can install it using,

sudo dpkg -i *.deb

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