I have tried shutting down and restarting from the desktop icon. Each time, the computer hangs at a blank screen and never shuts down. The fan starts whirring.
Then, I tried shutting down from the terminal to see what was causing the problem, and this is what I get:
wait-for-state stop/waiting Enabling radio: wifi. Applying power save settings...done *Stopping rsync daemon rsync [OK] *speech-dispatcher disabled; edit /etc/default/speech-dispatcher *Asking all remaining processes to terminate... [OK] *All processes ended within 1 seconds... [OK] ModemManager : <warn> Could not acquire the 'org.freedesktop.ModemManager1' service name ModemManager : <info> ModemManager is shut down *Deactivating swap... *Unmounting local filesystems *Will now halt
After that, it gets hung up and the fan on the computer starts whirring.
Please help! Thanks in advance.