[K12OSN] most terminals unab;e to connect after yum update

[Julius Szelagiewicz]

> You using gdm or kdm?  I only ask because a couple years ago I had a
> probelm very similar that for some reason only affected Compaq machines,
> and switching to gdm made the difference.
>
> "Support list for open source software in schools." <k12osn at redhat.com>
> writes:
>>On Fri, 8 Sep 2006, William Fragakis wrote:
>>
>>> go through the trouble-shooting steps on wiki.ltsp.org for x on gray
>>> screen
>>>
>>> http://wiki.ltsp.org/twiki/bin/view/Ltsp/Troubleshooting-GrayScreen
>>>
>>> occasionally, if you use the fedora repositories, your gdm.conf file
>>> gets overwritten with the standard Fedora file which closes the
>>> relevant
>>> port for xdmcp (iirc, 177). The other files for xdm (again, iirc)
>>> xdm-confif and Xaccess may have been affected too.
>>>
>>> you'll need to restart xdm afterwards to get things going. No worries,
>>> though, it's not a big one to sort out.
>>>
>>> regards,
>>> William Fragakis
>>> morrisbrandon.com
>>> On Fri, 2006-09-08 at 12:00 -0400, k12osn-request at redhat.com wrote:
>>> >
>>> > Message: 4
>>> > Date: Fri, 8 Sep 2006 10:34:57 -0400
>>> > From: Julius Szelagiewicz <julius at turtle.com>
>>> > Subject: [K12OSN] most terminals unab;e to connect after yum update
>>> > To: k12osn at redhat.com
>>> > Message-ID: <EE12ECB6-2668-454B-868F-60F8EA7338E6 at turtle.com>
>>> > Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
>>> >
>>> > Dear Folks,
>>> >   this has really stumped me and it is an emergency: I did yum
>>> > update
>>> > on k12 v5 production server yesterday. After reboot (to the old
>>> > kernel), most terminals get a beautiful X on the screen. The few
>>> > that
>>> > got login screens took several minutes to display desktop. The
>>> > logged
>>> > in users have no further problems. 26 terminals just don't want to
>>> > come up. All worked before update!
>>> > I checked the custom.conf file - looks just fine, lts.conf has a
>>> > single config for all terminals.
>>> >
>>> > The users are beginning to riot an are asking for "dependable
>>> > windows". Thanks, julius
>>
>>William,
>>	it -would- be easy to troubleshoot if -all- the terminals got a
>>big fat X. It isn't all that easy, for me, that is, to figure out why
>> some
>>get the login screen and then proceed to desktop very, very slowly ...
>> and
>>i did go through the "standard grey screen of life" troubleshooting :-)
>>julius


I've been using gdm. I checked all the config files I could think of and
everything appears to be fine. The weirdness is that some stations work
and some don't and they are identical. I even checked for flipped network
connections (that happens sometimes at kernel upgrades). I' really
stumped, and that one is a very, very bad one.
julius