On 11/04/13 16:39, Charles Patterson wrote:
> On 04/11/2013 02:26, John Pilkington wrote:
>> From: John Pilkington <[log in to unmask]>
>> To: "[log in to unmask]" <[log in to unmask]>
>> Cc:
>> Sent: Thursday, April 11, 2013 2:26 AM
>> Subject: Re: KDM/KDE login panel disappears
>>
>> On 11/04/13 04:11, Charles Patterson wrote:
>>>   Originally posted on the Scientific Linux forum:
>>>   http://scientificlinuxforum.org/index.php?act=ST&f=11&t=2281
>>>
>>>   With this last update to 6.4, and perhaps an update before, the KDM
>>>   login panel does not appear after boot. I see the background but nothing
>>>   else. Going to init level 3 and then back to init level 5 shows me the
>>>   login panel. Also hitting ctrl-alt-delete and then escape to dismiss the
>>>   shutdown menu shows the login panel as well. Going to init level 3 and
>>>   then startx puts me into an X session without login at all.
>>>
>>>   /var/log/messages says:
>>>   kdm: Abnormal termination of greeter for display :0, code 1 signal 0
>>>   kdm: Fatal X Server IO error: Interrupted system call
>>>
>>>   I have console access no problem and the rest of the system seems
>>>   healthy. fsck on the root partition came back with no problems.
>>>
>>>   I should say that I am running an ATI RV100 QY/Radeon 7000/VE card so no
>>>   nVidia issues here.
>>>
>>>   Now that I have the work-around, this isn't so dire anymore, but still
>>>   irksome. Anybody have any ideas how to fix this?
>>>
>>>   TIA.
>>
>> About two weeks ago my LVM tools disappeared somehow and I lost access to
>> lv_home;  after reinstalling the tools, and apparent initial success, I could
>> only reboot into Gnome.  I enabled the kde-unstable repo to try the new build
>> from there, but still could get only Gnome or the login screen.  Xorg.0.log
>> showed many AUDIT messages and clients being connected and rapidly
>> disconnected.  I found an earlier reference quoting a similar log extract and
>> claiming a cure by adding a section "Files"  defining the RgbPath to
>> Xorg.conf, but that was later retracted.  I don't have an Xorg.conf.
>> I'm now on 6.4
>>
>> Eventually I found that disabling the sshd service permitted normal login to
>> kde.  That's not a universal solution, but it lets me do most of what I
>> want.
>
> Thanks for the post. Unfortunately, this does not seem to be related to my issue. In any case, disabling sshd is not an option for me as I use this system sometimes as headless. As I said before, I can get the KDE login panel to appear by hitting CTRL-ALT-DEL and then ESC.  I have no X errors and only KDM errors which I quoted above from /var/log/messages.
>
> Can anybody give me a clue as to where and/or what to look for to fix this?
>
> Is there any other mail list or forum that would be able to get to the developers about this?
>
> Thanks.


My thread about my problem on the kde-for-fedora list got a suggestion 
to refresh /etc/kde/kdm/kdmrc, which comes as part of kde-settings-kdm.

'yum reinstall kde-settings-kdm' seems to have worked for me.

Thanks to Eli Wapniarski and Kevin Kofler.

John P