You can try name: trisquel pass: [none]
If that don't work, switch to VT1 (ctrl+alt+f1) and try to login there with the same credentials. Then sudo service gdm stop and sudo service gdm start to restart the xserver.
You can try name: trisquel pass: [none]
If that don't work, switch to VT1 (ctrl+alt+f1) and try to login there with the same credentials. Then sudo service gdm stop and sudo service gdm start to restart the xserver.