Bug#856351: parse_vt_settings: Permission denied <Cannotopen/dev/tty0>
On Mon Jul 3 13:38:41 2017, grahn@snipabacken.se wrote:
> I got bitten by #856351 after upgrading to Debian 9 yesterday. I want
> to be able to boot up, log in without any fancy login manager (not to
> mention Desktop Environments), and then run 'startx' and go X11. I
> need to do this repeatedly, on different virtual consoles -- so I can
> have simultaneous graphical logins. Or rather, so I can have a login
> and my Mom can have another one.
>
> Anyway, what worked for me was to add
>
> needs_root_rights=yes
>
> to /etc/X11/Xwrapper.config, as described in the corresponding man
> page. I haven't checked why this is needed, with my particular
> hardware. (And I haven't verified that it fits my two-user scenario
> above; it would be sad and a serious regression if it didn't.)
On the other hand, a second clean install of Debian 9 on identical
hardware did /not/ need /etc/X11/Xwrapper.config modification.
Group membership? Some extra package installed? I didn't have time
to investigate, and I don't easily have access to that second
installation.
/Jörgen
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