On 15/12/11 16:08, Arthur Dent wrote:
On Wed, 2011-12-14 at 14:11 +0000, Rich Boyce wrote:
On 14/12/11 12:54, Arthur Dent wrote:
On 14/12/11 09:18, Arthur Dent wrote:
Hello all,
Urgent help required!
I have turned on my Fedora 16 machine today. It booted quite normally
to
the
GDM login screen. When I selected one of my 3 users it started to login
to
the account as usual, but got no further than loading the background. I
CTRL-ALT-BKSPC'd back to the login screen and tried each of the other
accounts. Same problem. I can start a terminal session with CTRL-ALT-F2
and login to any user account in that terminal - and it is from there
that
I am sending this (using Mutt). I have tried googling using a text
based
browser, (but that is quite hard work) and all I have come up with is
this
bugzilla https://bugzilla.redhat.com/show_bug.cgi?id=753666 which
describes my symptoms perfectly (I am also using the nvidia akmod
driver)
but there is no resolution for me in that bugzilla.
Unlike that report I have updated nothing since Sunday (11 December)
and
it
worked fine yesterday (12 December). Here is an extract from dmesg:
[ 39.204161] gnome-shell[1458]: segfault at bc955315 ip 42325db4 sp
bfadd520
error 6 in ld-2.14.90.so[42319000+21000]
Below I list a (long) extract form /var/log/messages. There is some
very
fishy
looking stuff in that, but I have no idea how to fix it. Please help me
to
get
back to a working gnome-shell!
Thanks
Mark
I don't wish to appear desperate - but...
...I am desperate!
Any ideas?
It's a bit of a shot in the dark, but you could try removing the
proprietary nvidia drivers, and rebooting. It would be something like
yum erase \*kmod\*nvidia xorg-x11-drv-nvidia\*
That would probably get you back to the nouveau drivers.
If that doesn't work, there might be a hint in your /var/log/Xorg.0.log
Rich
Well thanks for that. I was actually thinking about removing the nvidia
driver.
As it happens, I gave up on the machine for the moment and went to work. I
therefore no longer have physical access to the machine. I can, however
ssh into it. While I was wondering about removing or re-installing the
nvidia driver I noticed that there is a new kernel available in yum
(3.1.5-1.fc16.i686.PAE) so I did a yum update. This will of course cause
the akmod module to rebuild the driver.
I have rebooted, and the encouraging thing is that dmesg now has no
reference to a gnome-shell segfault!
Well that's very encouraging!
Unfortunately I will not be home again until Thursday evening so I can't
actually try to log in to gnome-shell to see if it has worked (are there
any command line tricks to test if gnome-shell is working?).
Hmm. You could run 'ps fax' and look for a gnome-shell process, or a gdm
process (I'm not sure what the login manager shows up as). If you see it
there, that shows that it's running.
Well I got home today earlier than expected. That's the good news. The
bad news is that, when I turned on the machine, another segfault is
reported in dmesg and I am still locked out of gnome-shell.
Boo!
Soooo... I uninstalled the nvidia driver and reverted back to the
nouveau one.
Now I am typing this to you from Evolution using gnome 3. In other words
I am back in.
Great! So we've established that it is the nvidia driver that's causing
the problem.
To tell you the truth I have not noticed any real difference between the
nvidia and the nouveau drivers. I guess I should just stay with nouveau.
Is there anything I should be aware of while using nouveau instead of
the proprietary nvidia driver?
Well, the graphics acceleration is poorer with nouveau, and there might
be some stability issues I suppose, I haven't used nouveau for a long
time as the proprietary driver has always worked for me. On the other
hand, you get the self-satisfaction of using open-source software.
Is it worth persisting with nvidia?
Only if you need it. If nouveau gives you all the accelerated graphics
you need, stick with it.
Thanks for all the help...
No problem.
Rich
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