I am completely new to Ubuntu. My system, which is 3 days old is not allowing me to launch unity. Up until now I have needed to run
sudo systemctl restart lightdm.service
To launch it. This morning during a computationally intensive run of deeplearning my system crashed (everything froze and I needed to do a hard reboot). Since then, when I try to launch Unity I get a blank screen with a flashing cursor.
exec sudo -i
and tried this
I have reinstalled lightdm, unity and ubuntu-desktop.
I also tried this
and have tried this
Nothing is working, however I am getting this error message:
[331.322881] pcieport 0000:00:02.0: PCIe Bus Error: severity-Corrected, type=Data Link Layer, id=0010(Receiver ID) [331.323119] pcieport 0000:00:02.0: DEVICE [8086:6F04] error status/mask=00000080/00002000 [331.323119] pcieport 0000:00:02.0:  Bad DLLP
I have no idea what this means or how to debug it. Could someone offer some guidance please.