I set up a Centos 5 machine a couple of weeks ago and everything was working perfectly. It survived a few reboots and whatnot with no problem.
I moved it to another location on Saturday afternoon and, again, it booted up and worked fine.
It was rebooted this morning and now the graphical login screen doesn't appear. Everything appears to load normally but once the text login screen appears, that's it. No graphical login screen.
If I log in at the text console and type startx I am told that X is already running.
If I hit ctrl-alt-f7 at the text login screen I see a completely blank/black screen. If I then hit ctrl-alt-esc the graphical login screen comes up and everything works as it should.
If I switch to runlevel 3 and log into the text console and type startx, my desktop shows up just as it should.
There are no errors that I can see in /var/log/Xorg.0.log.
Again, this all worked fine up until this morning and nothing changed. Today I rebooted it several times and I consistently get the behaviour detailed here.
So, what could be going wrong and preventing the graphical login screen from loading?
On 10/1/07, Frank Cox theatre@sasktel.net wrote:
So, what could be going wrong and preventing the graphical login screen from loading?
Did you recently update (or reboot to) a new kernel? Are you using any 3rd party drivers like the nvidia proprietary driver, or the ATI drivers?
On Mon, 01 Oct 2007 15:22:26 -0400 Jim Perrin jperrin@gmail.com wrote:
Did you recently update (or reboot to) a new kernel?
I did a kernel update on Friday night, but it worked fine on Saturday.
Are you using any 3rd party drivers like the nvidia proprietary driver, or the ATI drivers?
This machine has an Intel 82G965 graphic chipset (according to the HAL Device Manager) and it's just using the out-of-the-box i810 video driver.
On 10/1/07, Frank Cox theatre@sasktel.net wrote:
I moved it to another location on Saturday afternoon and, again, it booted up and worked fine.
It was rebooted this morning and now the graphical login screen doesn't appear. Everything appears to load normally but once the text login screen appears, that's it. No graphical login screen.
Make sure DNS is working properly. For some reason, Xorg and/or GDM has a problem starting up if networking is unavailable and/or DNS lookups can't be performed.
Some judicious editing of /etc/hosts may work around this.
On Mon, 01 Oct 2007 13:49:48 -0700 Bart Schaefer barton.schaefer@gmail.com wrote:
Make sure DNS is working properly. For some reason, Xorg and/or GDM has a problem starting up if networking is unavailable and/or DNS lookups can't be performed.
That's interesting. Do you know of anything in particular that I should look at or test in this regard? Internet access to and from this machine appears to be working perfectly. (I can ssh in from here and run a web browser and browse web pages with no problem.)
On this note, it may be relevant to note that this machine is a LTSP 4.2 server.
All of the terminals come up just as they should when the server is booted up -- the gdm login screens appear on all of the terminals; it's just the gdm login screen on the server itself that fails to load.
Some judicious editing of /etc/hosts may work around this.
Do you see anything wrong with this? It looks pretty much the same as what I had on the Fedora 6 machine that this is replacing.
# Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1 main.server main localhost.localdomain localhost 142.165.59.200 theatre 69.11.102.182 webserver ## LTSP-begin ## # # The lines between 'LTSP-begin' and 'LTSP-end' were added # on: Tue Sep 25 20:51:56 2007, by the ltspcfg configuration tool. # For more information, visit the LTSP homepage # at http://www.LTSP.org #
192.168.0.1 ws001.ltsp ws001 192.168.0.2 ws002.ltsp ws002 192.168.0.3 ws003.ltsp ws003 192.168.0.4 ws004.ltsp ws004
.. and so on to
192.168.0.252 ws252.ltsp ws252 192.168.0.253 ws253.ltsp ws253 192.168.0.254 ws254.ltsp ws254
## LTSP-end ##
On Mon, 01 Oct 2007 13:49:48 -0700 Bart Schaefer barton.schaefer@gmail.com wrote:
Make sure DNS is working properly. For some reason, Xorg and/or GDM has a problem starting up if networking is unavailable and/or DNS lookups can't be performed.
My first attempt to reply to this seems to have vanished somewhere, so here it is again:
That's interesting. Do you know of anything in particular that I should look at or test in this regard? Internet access to and from this machine appears to be working perfectly. (I can ssh in from here and run a web browser and browse web pages with no problem.)
On this note, it may be relevant to note that this machine is a LTSP 4.2 server.
All of the terminals come up just as they should when the server is booted up -- the gdm login screens appear on all of the terminals; it's just the gdm login screen on the server itself that fails to load.
Some judicious editing of /etc/hosts may work around this.
Do you see anything wrong with this? It looks pretty much the same as what I had on the Fedora 6 machine that this is replacing.
# Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1 main.server main localhost.localdomain localhost 142.165.59.200 theatre 69.11.102.182 webserver ## LTSP-begin ## # # The lines between 'LTSP-begin' and 'LTSP-end' were added # on: Tue Sep 25 20:51:56 2007, by the ltspcfg configuration tool. # For more information, visit the LTSP homepage # at http://www.LTSP.org #
192.168.0.1 ws001.ltsp ws001 192.168.0.2 ws002.ltsp ws002 192.168.0.3 ws003.ltsp ws003 192.168.0.4 ws004.ltsp ws004
.. and so on to
192.168.0.252 ws252.ltsp ws252 192.168.0.253 ws253.ltsp ws253 192.168.0.254 ws254.ltsp ws254
## LTSP-end ##
On Mon, 2007-10-01 at 16:45 -0600, Frank Cox wrote:
On Mon, 01 Oct 2007 13:49:48 -0700 Bart Schaefer barton.schaefer@gmail.com wrote:
Make sure DNS is working properly. For some reason, Xorg and/or GDM has a problem starting up if networking is unavailable and/or DNS lookups can't be performed.
My first attempt to reply to this seems to have vanished somewhere, so here it is again:
That's interesting. Do you know of anything in particular that I should look at or test in this regard? Internet access to and from this machine appears to be working perfectly. (I can ssh in from here and run a web browser and browse web pages with no problem.)
On this note, it may be relevant to note that this machine is a LTSP 4.2 server.
All of the terminals come up just as they should when the server is booted up -- the gdm login screens appear on all of the terminals; it's just the gdm login screen on the server itself that fails to load.
Some judicious editing of /etc/hosts may work around this.
Do you see anything wrong with this? It looks pretty much the same as what I had on the Fedora 6 machine that this is replacing.
# Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1 main.server main localhost.localdomain localhost 142.165.59.200 theatre 69.11.102.182 webserver ## LTSP-begin ## # # The lines between 'LTSP-begin' and 'LTSP-end' were added # on: Tue Sep 25 20:51:56 2007, by the ltspcfg configuration tool. # For more information, visit the LTSP homepage # at http://www.LTSP.org #
192.168.0.1 ws001.ltsp ws001 192.168.0.2 ws002.ltsp ws002 192.168.0.3 ws003.ltsp ws003 192.168.0.4 ws004.ltsp ws004
.. and so on to
192.168.0.252 ws252.ltsp ws252 192.168.0.253 ws253.ltsp ws253 192.168.0.254 ws254.ltsp ws254
## LTSP-end ##
---- I would think that perhaps the adjustments that ltspadmin makes to gdm to allow remote logins got replaced. Run ltspadmin again and have it make the adjustments again and restart the computer
Craig
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Bart Schaefer -
Craig White -
Frank Cox -
Jim Perrin