¿What's the problem?
If you check /var/log/Xorg.0.log you have this message:
intel(0): Failed to submit batch buffer, expect rendering corruption: Resource deadlock avoided.
¿How to fix?
Very easy. We need update xserver-xorg-video-intel (2:2.21.15-2) to xserver-xorg-video-intel (2:2.99.917-2~bpo8+1) package from Debian Jessie backports.
Very easy. We need update xserver-xorg-video-intel (2:2.21.15-2) to xserver-xorg-video-intel (2:2.99.917-2~bpo8+1) package from Debian Jessie backports.
Steps:
1.- Open a terminal and type.
$ cd /
$ sudo pluma /etc/apt/sources.list
2.- Add the lines:
deb http://ftp.debian.org/debian jessie-backports main contrib non-free
deb-src http://ftp.debian.org/debian jessie-backports main contrib non-free
3.- Save and exit.
4.- In that terminal, type:
$ sudo apt-get update
$ sudo apt-get -t jessie-backports install xserver-xorg-video-intel
$ sudo reboot
That's all.
Tuxkernel...
Tuxkernel...