I've found a workaround that was tested on Ubuntu 20.04:
$ cat /etc/systemd/system/systemd-logind.service.d/override.conf
# XXX: required to have /proc mounted with hidepid=2,gid=pidgrp
[Service]
SupplementaryGroups=pidgrp
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** Changed in: xorg-server
Status: Incomplete => Unknown
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https://bugs.launchpad.net/bugs/1754401
Title:
mounting /proc with hidepid causes: Fatal server error: (EE)
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** Changed in: xorg-server
Status: Unknown => Confirmed
** Changed in: xorg-server
Importance: Unknown => Medium
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Title:
m
I added a link to the upstream bug, thanks for the guidance Daniel.
** Bug watch added: freedesktop.org Bugzilla #105508
https://bugs.freedesktop.org/show_bug.cgi?id=105508
** Also affects: xorg-server via
https://bugs.freedesktop.org/show_bug.cgi?id=105508
Importance: Unknown
Sta
Thanks for the clarification.
Sounds like the next step should be to tell the Xorg developers about
the bug. Please report it here:
https://bugs.freedesktop.org/enter_bug.cgi?product=xorg
and then let us know the new bug ID.
** No longer affects: gdm3 (Ubuntu)
** Changed in: xorg-server (Ubu
Finally found what changed. I updated /etc/fstab to have /proc mounted
with hidepid=2,gid=sudo for added security. This works perfectly on
16.04 but totally breaks on 17.10.
To recap: mounting /proc with "nodev,noexec,nosuid" works but adding
"hidepid=2,gid=sudo" breaks.
** Tags added: regression
** Summary changed:
- Fatal server error: (EE) xf86OpenConsole: Cannot open virtual console 1
(Permission denied)
+ mounting /proc with hidepid causes: Fatal server error: (EE) xf86OpenConsole:
Cannot open virtual console 1 (Permission denied)
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** Also affects: xorg-server (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1754401
Title:
Fatal server error: (EE) xf86OpenConsole: C
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