il login con gdm non parte

[belcocco]

Buongiorno a tutti.
Oggi dopo gli aggiornamenti di weekly il sistema non riesce a startare gdm e non riesco a loggarmi.
Si presenta la console.
Allora entro come root e scrivo:

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#systemctl restart gdm


gdm parte e posso loggarmi.
Allora con il comando:

Code: Select all

#systemctl status gdm


ottengo questo:

gdm.service - GNOME Display Manager
Loaded: loaded (/usr/lib64/systemd/system/gdm.service; disabled)
Active: active (running) since dom 2014-01-19 12:04:56 CET; 25min ago
Main PID: 3407 (gdm)
CGroup: name=systemd:/system/gdm.service
├─3407 /usr/sbin/gdm
├─3410 /usr/libexec/gdm-simple-slave --display-id /org/gnome/DisplayManager/Displays/_0
├─3414 /usr/X11R6/bin/X :0 -background none -verbose -auth /run/gdm/auth-for-gdm-f2gJtK/database -seat seat0 -nolisten tcp vt7
└─3564 gdm-session-worker [pam/gdm-password]

gen 19 12:04:56 qt-feltre systemd[1]: Started GNOME Display Manager.
gen 19 12:04:59 qt-feltre gdm[3407]: Failed to give slave programs access to the display. Trying to proceed.
gen 19 12:05:03 qt-feltre gdm[3407]: gcc-config: error: could not run/locate 'cpp'
gen 19 12:05:36 qt-feltre gdm-password][3564]: pam_unix(gdm-password:session): session opened for user raga by (unknown)(uid=0)
gen 19 12:05:38 qt-feltre gdm[3407]: Failed to remove slave program access to the display. Trying to proceed.

Sembra disabilitato.
Cosa può essere?
Grazie per ogni info.
Ciao

[belcocco]

Ho dato il comando:
#systemctl enable gdm
e gdm parte e così pure il DE, però lo status di gdm continua a darmi questi errori:

gen 19 12:39:09 sabayon gdm[2752]: Failed to give slave programs access to the display. Trying to proceed.
gen 19 12:39:15 qt-feltre gdm[2752]: gcc-config: error: could not run/locate 'cpp'
gen 19 12:39:49 qt-feltre gdm-password][3565]: pam_unix(gdm-password:session): session opened for user raga by (unknown)(uid=0)
gen 19 12:39:51 qt-feltre gdm[2752]: Failed to remove slave program access to the display. Trying to proceed.

Boh!
Ciao