After install nvidia driver gdm3 on startup crash but startx work!

Hi guys
I have recently buy a Asus Strix gtx 960 to replace a broken AMD card.
My S.O. is Debian testing 64bit

uname -a 
Linux pc 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt7-1 (2015-03-01) x86_64 GNU/Linux

I’ve get driver from nvidia site “”
I’ve stop gdm3 with

service gdm3 stop

and change default version of gcc compile

rm /usr/bin/gcc
ln -s /usr/bin/gcc-4.8 /usr/bin/gcc

the installation finish whit success but when I restart the pc


when gdm3 start crash with this message “oh no something has gone wrong. A problem has occurred and the system cannot recover. please log out and try again”.
I go to console crt+alt+f1 and stop gdm3

service gdm3 stop

and type


all work fine!!
type “startx” from root or my user is equal.
when I reboot the pc the problem return!

Sorry for my english and many thanks for your help!
nvidia-bug-report.log.gz (107 KB)
nvidia-installer.log (1.73 KB)
Xorg.0.log (23.4 KB)
xorg.conf.txt (1.29 KB)
gdm3.initd.txt (2.96 KB)
lspci.txt (2.21 KB)
lsmod.txt (5.22 KB)

If you’re looking for a quick fix, i’d suggest installing KDM.

# apt-get install kdm

I had this problem aswell, but don’t have enough time at the moment to fix it properly. You should notice nothing different, except that the login screen is slightly different.

Hope this helps.