This bug was fixed in the package lightdm - 1.18.2-0ubuntu1
---------------
lightdm (1.18.2-0ubuntu1) xenial; urgency=medium
* New upstream release:
- Don't quit on SIGUSR1, SIGUSR2 or SIGHUP (LP: #960157)
- Use MIR_SERVER_HOST_SOCKET instead of MIR_SOCKET to report compositor
socket to sessions. This used to work but no longer works in Mir 0.21
(LP: #1583624)
- Use only a single compositor on xlocal seats (LP: #1594229)
- Fix Mir greeter log filename having "(null)" in the name (LP: #1590582)
- Set XDMCP hostname field in to system hostname or configured value
(LP: #1578442)
- Improve XDMCP IPv6 address selection (LP: #1575200)
- Allow fcitx and mozc to run in guest session (LP: #1509829)
- Fix uninitialized memory errors
* debian/lightdm.dirs:
- Ensure user configuration directories /etc/lightdm/lightdm.conf.d and
/etc/guest-session exist
* debian/guest-account.sh:
* debian/guest-session-setup.sh:
- Source prefs.sh as privileged user to allow user modification
(LP: #1581853)
-- Robert Ancell <robert.anc...@canonical.com> Tue, 21 Jun 2016
12:49:01 +1200
** Changed in: lightdm (Ubuntu Xenial)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/960157
Title:
lightdm exits on SIGHUP
Status in Light Display Manager:
Fix Released
Status in Light Display Manager 1.10 series:
Fix Committed
Status in Light Display Manager 1.16 series:
Fix Committed
Status in Light Display Manager 1.18 series:
Fix Released
Status in Light Display Manager 1.2 series:
Won't Fix
Status in lightdm package in Ubuntu:
Fix Released
Status in lightdm source package in Trusty:
Fix Committed
Status in lightdm source package in Xenial:
Fix Released
Status in lightdm source package in Yakkety:
Fix Released
Bug description:
[Impact]
LightDM quits when it receives SIGUSR1, SIGUSR2 or SIGHUP. But convention
these signals should not quit a service (they should get it to dump state,
reload configuration etc).
[Test Case]
1. Start lightdm
2. sudo killall -SIGHUP lightdm
Expected result:
Nothing happens
Observed result:
LightDM restarts
[Regression Potential]
Low. We now just quit only on SIGTERM and SIGINT.
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