Ubuntu Login loop after Nvidia driver installation.

[ThomasDr]

Hello,

I use Proxmox 6.1.2 and try a Ubuntu 16.04 installation with PCI passthrough. After the Nvidia driver installation, I have the known problem with the login loop.
I have tested many known variants of the installation, unfortunately, all of them were unsuccessful.
At the command line nvidia-smi show the GPU is running.
I have tested so many instructions that I cannot list all of them here, but I will submit them later if necessary.
Is there something special here at Proxmox?
Here a log sniped:

Apr 14 16:45:46 ubuntu16 gnome-session[2450]: X Error of failed request:  BadValue (integer parameter out of range for operation)
Apr 14 16:45:46 ubuntu16 gnome-session[2450]:   Major opcode of failed request:  154 (GLX)
Apr 14 16:45:46 ubuntu16 gnome-session[2450]:   Minor opcode of failed request:  3 (X_GLXCreateContext)
Apr 14 16:45:46 ubuntu16 gnome-session[2450]:   Value in failed request:  0x0
Apr 14 16:45:46 ubuntu16 gnome-session[2450]:   Serial number of failed request:  22
Apr 14 16:45:46 ubuntu16 gnome-session[2450]:   Current serial number in output stream:  23
Apr 14 16:45:46 ubuntu16 gnome-session[2450]: gnome-session-check-accelerated: Helper exited with code 256
Apr 14 16:45:46 ubuntu16 gnome-session[2450]: gnome-session-binary[2450]: CRITICAL: We failed, but the fail whale is dead. Sorry....
Apr 14 16:45:46 ubuntu16 gnome-session-binary[2450]: CRITICAL: We failed, but the fail whale is dead. Sorry....
Apr 14 16:45:46 ubuntu16 org.gnome.evolution.dataserver.Sources5[2291]: (evolution-source-registry:2567): accounts-glib-WARNING **: Failed to get D-Bus connection (Verbindung ist gescheitert: Verbindungsaufbau abgelehnt)
Apr 14 16:45:46 ubuntu16 org.gnome.evolution.dataserver.Sources5[2291]: (evolution-source-registry:2567): GLib-GIO-CRITICAL **: g_dbus_interface_skeleton_unexport: assertion 'interface_->priv->connections != NULL' failed
Apr 14 16:45:47 ubuntu16 lightdm[1738]: pam_unix(lightdm:session): session closed for user thomasd
Apr 14 16:45:47 ubuntu16 systemd-logind[750]: Removed session c3.
Apr 14 16:45:47 ubuntu16 lightdm[825]: ** (lightdm:825): CRITICAL **: session_get_login1_session_id: assertion 'session != NULL' failed
Apr 14 16:45:47 ubuntu16 lightdm[2610]: PAM unable to dlopen(pam_kwallet.so): /lib/security/pam_kwallet.so: cannot open shared object file: No such file or directory
Apr 14 16:45:47 ubuntu16 lightdm[2610]: PAM adding faulty module: pam_kwallet.so
Apr 14 16:45:47 ubuntu16 lightdm[2610]: PAM unable to dlopen(pam_kwallet5.so): /lib/security/pam_kwallet5.so: cannot open shared object file: No such file or directory
Apr 14 16:45:47 ubuntu16 lightdm[2610]: PAM adding faulty module: pam_kwallet5.so
Apr 14 16:45:47 ubuntu16 lightdm[2610]: pam_unix(lightdm-greeter:session): session opened for user lightdm by (uid=0)
Apr 14 16:45:47 ubuntu16 systemd-logind[750]: New session c4 of user lightdm.
Apr 14 16:45:47 ubuntu16 systemd[1]: Started Session c4 of user lightdm.
Apr 14 16:45:47 ubuntu16 org.a11y.atspi.Registry[2630]: SpiRegistry daemon is running with well-known name - org.a11y.atspi.Registry
Apr 14 16:45:47 ubuntu16 lightdm[2658]: PAM unable to dlopen(pam_kwallet.so): /lib/security/pam_kwallet.so: cannot open shared object file: No such file or directory
Apr 14 16:45:47 ubuntu16 lightdm[2658]: PAM adding faulty module: pam_kwallet.so
Apr 14 16:45:47 ubuntu16 lightdm[2658]: PAM unable to dlopen(pam_kwallet5.so): /lib/security/pam_kwallet5.so: cannot open shared object file: No such file or directory
Apr 14 16:45:47 ubuntu16 lightdm[2658]: PAM adding faulty module: pam_kwallet5.so
Apr 14 16:45:47 ubuntu16 lightdm[2658]: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "thomasd"
Apr 14 16:45:47 ubuntu16 org.gnome.ScreenSaver[2622]: ** (gnome-screensaver:2704): WARNING **: Couldn't get presence status: Keine derartige Schnittstelle »org.freedesktop.DBus.Properties« des Objekts im Pfad /org/gnome/SessionManager/Presence
Apr 14 16:45:47 ubuntu16 org.gnome.ScreenSaver[2622]: ** (gnome-screensaver:2704): WARNING **: Der Bildschirmschoner ist in dieser Sitzung bereits aktiv
Apr 14 16:45:50 ubuntu16 kernel: perf: interrupt took too long (2559 > 2500), lowering kernel.perf_event_max_sample_rate to 78000

regards
ThomasD

 

[Stefan_R]

This seems more like an issue with your VM's Xorg setup then a passthrough related one... Nevertheless, maybe there's more info in /var/log/Xorg.log ?

Also check out https://wiki.archlinux.org/index.php/Xorg#Troubleshooting , it's a useful article in general.