I am running on a Thinkpad T460, 256gb ssd, 8gb RAM, Intel HD Graphics 520.
I am dual booting Debian 8 and Windows 10.
My computer boots normally. I can access the graphical GRUB menu (I can also log into Windows 10 normally). However, if I log into Debian, I am immediately put into tty1 mode. Within tty1 mode, I can log into my accounts and access anything I could normally access with terminal (install applications, use text editors, etc.)
Prior to this error, I was trying to install opencv on my machine. The last commands I ran were (from http://docs.opencv.org/2.4/doc/tutorial ... stall.html):
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sudo apt-get install libglib2.0-0=2.42.1-1+b1
sudo apt-get install libglib2.0-dev
sudo apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
Later my computer fell asleep and when I tried to log back in, the login screen acted as if the enter key was stuck and I couldn’t type my full password in time. I proceeded to shut down my computer, and it stayed on a black screen with a blinking underscore for quite some time, and when I restart the machine, it automatically booted into tty1.
I ran the line “grep EE /var/log//Xorg.0.log”
And the following is my output:
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(EE) AIGLX error: Calling driver entry point failed
(EE) AIGLX: reverting to software rendering
(EE) Server terminated successfully (0). Closing log file.