From: Christoph Pleger <christoph.pleger@cs.uni-dortmund.de>
To: kbd@lists.altlinux.org
Subject: Re: [kbd] openvt and virtual terminals
Date: Wed, 18 Sep 2019 17:30:47 +0200
Message-ID: <580891414465f35a8fda37c728ed0359@cs.uni-dortmund.de> (raw)
In-Reply-To: <e47d99f51a74221d9c74eee781ba461c@cs.uni-dortmund.de>
Hello,
On 2019-09-17 13:18, Christoph Pleger wrote:
> I want to use openvt from the kbd project to open a new virtual
> terminal and start a wayland session there. But after entering 'openvt
> -s -w -- dbus-run-session startplasmacompositor' on tty1, the KDE
> Wayland session did not start on a new virtual terminal, but on tty1.
> So, I tried to start a shell session first with 'openvt -s -w --
> /bin/bash' and then, on the new virtual terminal, start the Wayland
> session with 'dbus-run-session startplasmacompositor'. Though the
> first of these commands successfully opened a shell session on a new
> virtual terminal, the second command caused a switch back to tty1 and
> again, the KDE session opened there, and the new VT was only used for
> textual stdout/stderr.
>
> So, my question is how to give all control for the new process to the
> new virtual terminal and let the process started on the new VT
> completely forget about the virtual terminal on which its parent
> process was started.
This is totally crazy: Even when I omit the -w option to openvt, so that
I can log out from tty1, then switch to the new VT and enter
'dbus-run-session startplasmacompositor' there, the KDE session starts
on tty1, though of course logging out from /dev/tty1 changed its owner
to root. So, how can a process with real UID, effective UID and saved
UID (I checked that) change the ownership of a device that was owned by
root?
Still nobody who has an idea what is going on here with the virtual
terminals?
Regards
Christoph
next prev parent reply other threads:[~2019-09-18 15:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-17 11:18 Christoph Pleger
2019-09-18 15:30 ` Christoph Pleger [this message]
2019-09-18 16:13 ` Ken Moffat
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