Estou executando o Ubuntu 14.04 com os ambientes de desktop Gnome e Lubuntu.
Sempre que faço login, o computador mostra uma tela preta rapidamente e, em seguida, me leva de volta à tela de login.
A Ctrl + Alt + F1 , Ctrl + Alt + < kbd> F2 , Ctrl + Alt + F3 , Ctrl + Alt + F4 , Ctrl + Alt + F5 , Ctrl + Alt + F6 , Ctrl + Alt + F8 , Ctrl Alt + F9 funcionam. O mesmo acontece com o Lubuntu.
Este é o arquivo .xsession-errors .
Warning: Only changing the first 12 of 13 buttons.
X Error of failed request: BadRequest (invalid request code or no such operation)
Major opcode of failed request: 157 (ATIFGLEXTENSION)
Minor opcode of failed request: 66 ()
Serial number of failed request: 23
Current serial number in output stream: 23
Script for fcitx started at run_im.
upstart: at-spi2-registryd main process ended, respawning
upstart: at-spi2-registryd main process ended, respawning
upstart: at-spi2-registryd main process ended, respawning
upstart: gnome-session (Unity) main process (12764) terminated with status 1
upstart: unity-settings-daemon main process (12754) killed by TERM signal
upstart: Disconnected from notified D-Bus bus
upstart: logrotate main process (12661) killed by TERM signal
upstart: update-notifier-release main process (12707) killed by TERM signal
upstart: upstart-dbus-session-bridge main process (12730) terminated with status 1
upstart: xsession-init main process (12746) killed by TERM signal
upstart: hud main process (12761) killed by TERM signal
upstart: unity-panel-service main process (12780) killed by TRAP signal
Alguém sabe por que isso está acontecendo ou como posso corrigi-lo?
Por favor, reinstale o desktop lubuntu através do tty (Ctrl + Alt + F1). Pressione Ctrl + Alt + F1 e digite seu nome de usuário e senha. Então os seguintes comandos depois: sudo apt-get update sudo apt-get install --reinstalar lubuntu-desktop
Finalmente, reinicie após a conclusão da reinstalação.