Sorry, I made a mistake in the previous email I want to say "typing
ctrl+alt+f2" . Ctrl+alt+f2 doesn't work when the client show the black
screen but it's works when the client start successfully.
*- - -
Alberto Asuero Arroyo*
(+34) 645 816 025
On Wed, Feb 6, 2013 at 9:41 AM, <david...@ling.ohio-state.edu> wrote:
> > Unfortunately when the black screen appears we cannot access to the
> system
> > neither typing alt+f2 nor via ssh (the thin client only answer to ping).
>
> to switch to another virtual console, i would try ctrl+alt+f2 (if the
> console i wanted were tty2). (also `alt' is the left alt key, not the
> one on the right.)
>
> if that didn't work, i'd try ctrl+alt+fN, where N is some other small
> positive integer.
>
> that's all i got.
>
> cheers,
> wes
>
> On Tue, 5 Feb 2013, Alberto Asuero wrote:
>
> > We've one server (Ubuntu 12.04) and 20 fujitsu thin clients (same model).
> >
> > The system works fine with the most of clients, but some clients (3 of
> 20)
> > show a black screen trying to load login window and the system is
> > completely inaccesible. The client load the linux image and it shows
> ubuntu
> > bootsplash (I suppose because there is a problem with max sessions with
> the
> > xserver).
> >
> > Unfortunately when the black screen appears we cannot access to the
> system
> > neither typing alt+f2 nor via ssh (the thin client only answer to ping).
> >
> > We've another clone of this enviroment deployed in other place (20
> fujitsu
> > clients) and the same thing happen.
> >
> > It's not a hardware issue because we've experienced the same client which
> > shows the black screen after a while it starts successfully and other
> > clients which starts succesfully can't start, Futhermore the thin clients
> > can't start booting from their disk.
> >
> > We've tried to debug setting LDM_DEBUG to True but we can't acces the
> > system so we cannot know what is happening.
> >
> > Also we've replaced lightdm by gdm because some people has reported
> problem
> > with max sessions and we've set /etc/gdm/custom.conf to:
> >
> > [daemon]
> > RemoteGreeter=/usr/lib/gdm/gdmlogin
> >
> > [xdmcp]
> > Enable=true
> > MaxSessions=30
> > DisplaysPerHost=100
> >
> >
> > ...but nothing change.
> >
> > When a client cannot start we've to wait a while, we've tried rebooting
> the
> > server and change the assigned ip to the thin client in order to try to
> > remove all session...but nothing change. Are the sessions persistents to
> ip
> > changes and reboots?
> >
> > Thanks, Alberto
> >
>
>
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