Incomplete shutdown on some LTSP clients (shutdown hangs/freezes)
Aere Greenway
Aere at Dvorak-Keyboards.com
Sun Sep 2 17:22:57 UTC 2012
Nicholas:
I don't think Kubuntu would run on a 450 megahertz, 512 RAM machine,
though they have improved it this last release, so perhaps I should try
it.
I do run Xubuntu on it, which has the same problem.
Years ago, there was an error message that appeared during shutdown (or
boot), stating that the BIOS did not pass the ACPI cutoff (I think it
was a date before which they did not rely on ACPI).
Ever since then, that machine would not power-down, on every successive
Linux release.
I used to use Kubuntu on that machine (8.04?) and I think the problem
might have been evident back then.
- Aere
On Mon, 2012-08-27 at 12:06 -0400, Nicholas Skaggs wrote:
> Hmm, my first thought was that this appears to be perhaps some ACPI
> interaction, specific to the bios of each pc. You might be able to
> change some settings in the bios's on the pc to produce the intended
> results.
>
> Reading the bug, perhaps there is something wrong on the software side
> here. Since the bug is marked as being in gnome-session, can you try
> and see if it affects you if you don't run gnome session? For
> instance, does kubuntu exhibit this behavior?
>
> Short-term you could get a package with the patch in it and test that.
> Longer term, helping get a fix in is of course best. I would likely
> open a new bug for this after you've narrowed the cause of what's
> going on.
>
> Nicholas
>
> On 08/25/2012 04:11 PM, Phill Whiteside wrote:
>
> >
> > Hi John,
> >
> >
> >
> > it was marked as a "will not fix" [1]. This seems completely stupid
> > to me, as the ltsp team agreed the fix.
> >
> >
> > @ nicholas, can you chase this up? ltsp [2] have simply wished me
> > luck to get the bug fixed..... It appears that people do not
> > consider it a task worth doing?.... wtf...
> >
> >
> > Regards,
> >
> >
> > Phill.
> > 1. https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/491940
> > 2. https://help.ubuntu.com/community/UbuntuLTSP/
> >
> >
> > On 25 August 2012 20:03, Phill Whiteside <PhillW at ubuntu.com> wrote:
> >
> > Hi John,
> >
> >
> >
> > I've asked on the ltsp team. I do not think it is a lubuntu
> > issue, nor an edubuntu one, but a generic issue.
> >
> >
> > I have cc'd this to the guy who looks after general QA, I'm
> > sure that he will chase it up for you.
> >
> >
> > For your information LTSP are at [1].
> >
> >
> > Regards,
> >
> >
> > Phill.
> > 1. https://help.ubuntu.com/community/UbuntuLTSP/
> >
> >
> > On 25 August 2012 19:31, John Hupp <lubuntu at prpcompany.com>
> > wrote:
> >
> > On my Lubuntu and Edubuntu 12.04 LTSP test networks,
> > I find that some clients do not shut down
> > completely.
> >
> >
> > On the Lubuntu network, one eMachine client stops at
> > a black-and-white text screen that says:
> > Ubuntu 12.04
> > .... * Asking all remaining processes to
> > terminate ...
> > [255.161402] SysRq : Power off
> > [255.173722] Power down.
> >
> > [OK]
> > [255.280060[ SysRq : Power Off
> > [255.280220] Power down.
> > * All processes ended within 1 seconds ....
> > [OK]
> > A simple press of the power button does not turn off
> > the machine at that point. I have to press and hold
> > it 5 seconds or so.
> >
> > Also on the Lubuntu network, an HP stops at the same
> > screen, but a simple press of the power button turns
> > it off.
> >
> > A Dell on the Lubuntu networks shuts off cleanly and
> > completely within a few seconds.
> >
> > ---------------------
> >
> > On the Edubuntu network, all clients have to invoke
> > Shutdown from the desktop and from the login screen.
> > After choosing Shutdown from the desktop (and then
> > presenting a dialog for Shutdown or Restart), it
> > drops back to the login screen, and there one
> > chooses Preferences: Shutdown. [Very tedious, but
> > that's not my real interest in this post. And as a
> > footnote, the server shuts down cleanly after the
> > two clicks on the desktop.
> >
> > But regarding specific client machine behavior on
> > the Edubuntu network, the above eMachine hangs at a
> > black screen after Preferences: Shutdown from the
> > login screen. I forgot to make a note of whether a
> > simple press of the power button shuts it off from
> > here, or whether a press-and-hold was required as it
> > was on the Lubuntu net.
> >
> > The above HP hangs at a white screen after
> > Preferences: Shutdown from the login screen. A
> > simple press of the power button shuts it off from
> > here.
> >
> > The above Dell shuts down cleanly after Preferences:
> > Shutdown from the login screen.
> >
> > ---------------------
> >
> > One other behavior that was of interest to me but
> > that I did not thoroughly document was that even on
> > machines where Shutdown hangs, it seems generally to
> > be the case that Restart does not hang. The machine
> > proceeds smoothly to POST and reboot.
> >
> > ---------------------
> >
> > So I am wondering if I can get all the clients to
> > shut down cleanly via the interface Shutdown
> > commands.
> >
> > If not, is there a script that will produce a clean
> > shutdown?
> >
> > Or failing that, can I insert a splash screen at the
> > end of the shutdown process something like Windows
> > 95/98 used on machines where it could not execute a
> > complete shutdown automatically? (The screen said
> > something like "It is now safe to turn off your
> > computer.")
> >
> > Speaking of Windows 95/98's shutdown process, I
> > recall that the issue had to do with power
> > management drivers not fully supporting the hardware
> > on some motherboards, or not finding the hardware
> > that power management did fully support. But beyond
> > that, it was possible to
> > not-install/uninstall/disable power management on
> > machines that did support full shutdown, then
> > install/reinstall/re-enable power management but not
> > recover the ability to do a full shutdown. So it
> > wasn't always just a question of supported hardware.
> >
> > Also regarding Win 9x, that splash screen may have
> > been an integrated part of all shutdowns. I recall
> > seeing it flash on-screen for a split second even on
> > machines that were on their way to a full automatic
> > shutdown.
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > --
> > Lubuntu-users mailing list
> > Lubuntu-users at lists.ubuntu.com
> > Modify settings or unsubscribe at:
> > https://lists.ubuntu.com/mailman/listinfo/lubuntu-users
> >
> >
> >
> >
> > --
> > https://wiki.ubuntu.com/phillw
> >
> >
> >
> >
> >
> >
> >
> >
> > --
> > https://wiki.ubuntu.com/phillw
> >
--
Sincerely,
Aere
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/lubuntu-users/attachments/20120902/9523b2a8/attachment.html>
More information about the Lubuntu-users
mailing list