Mateus, Não sei o que pode ser, mas se você não está conseguindo nada com o dpkg-reconfigure pode ser porque você alterou manualmente (ou com outro programa) o XF86Config-4. Leia o começo (comentado) daquele arquivo:
$ head -18 /etc/X11/XF86Config-4 # XF86Config-4 (XFree86 X Window System server configuration file) # # This file was generated by dexconf, the Debian X Configuration tool, using # values from the debconf database. # # Edit this file with caution, and see the XF86Config-4 manual page. # (Type "man XF86Config-4" at the shell prompt.) # # This file is automatically updated on xserver-xfree86 package upgrades *only* # if it has not been modified since the last upgrade of the xserver-xfree86 # package. # # If you have edited this file but would like it to be automatically updated # again, run the following commands as root: # # cp /etc/X11/XF86Config-4 /etc/X11/XF86Config-4.custom # md5sum /etc/X11/XF86Config-4 >/var/lib/xfree86/XF86Config-4.md5sum # dpkg-reconfigure xserver-xfree86 Se o problema não era esse, ou se isso era óbvio para você, entenda que a intenção era boa. E boa sorte! tiago.
