I found alot of questions with the same title put it all can't help.
My os : Ubuntu 16.04 LTS amd64 (xenial)
My kernel : 4.12.0-041200 kernel
My ~/.xsession-errors :
openConnection: connect: No such file or directory
cannot connect to brltty at :0
upstart: gnome-session (GNOME) main process (1603) terminated with status 1
upstart: logrotate main process (1449) killed by TERM signal
upstart: update-notifier-crash (/var/crash/libglapi-mesa.0.crash) main process (1504) killed by TERM signal
upstart: update-notifier-crash (/var/crash/libsdl2-2.0-0.0.crash) main process (1505) killed by TERM signal
upstart: update-notifier-crash (/var/crash/libvdpau1.0.crash) main process (1506) killed by TERM signal
upstart: bamfdaemon main process (1556) killed by TERM signal
upstart: Disconnected from notified D-Bus bus
and All my pakages is upgraded
Please help me with this
update : what caused the problem ?
I have tried to replace libglapi-mesa new verion with an old one, and the package dependencies did't match with the package version and i have removed sources.list file and removed the main packages then followed this Cannot boot system due to start job running for hold then this problem happend
