I have just installed ubuntu and installed the gnome-desktop. Before I installed the gnome-desktop it didn't take a long time to log in. After I switched to gnome-desktop it took a long time to log in (~30s). So I went to the terminal and entered:
dmesg|less
The time consuming parts are (actually the last lines):
[ 15.437509] nouveau 0000:01:00.0: fifo: read fault at 0000011000 engine 07 [PBDMA0] client 06 [HOST] reason 00 [PDE] on channel -1 [00ff86f000 unknown]
[ 30.438407] nouveau 0000:01:00.0: systemd-logind[2303]: failed to idle channel 2 [systemd-logind[2303]]
[ 45.438649] nouveau 0000:01:00.0: systemd-logind[2303]: failed to idle channel 2 [systemd-logind[2303]]
I actually don't know a lot about gnome and Linux and general but I think the problem has to do with my GPU. I use an GTX 970, but did not need to install any drivers after the installation of Ubuntu. My ubuntu version is 16.04.
I am thankful for any help.
sudo apt install nvidia-367
– Pilot6 Jan 08 '17 at 21:10