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Message #33969
[Bug 1305006] Re: Crashes running display server scripts for non X servers
https://launchpad.net/ubuntu/+source/lightdm/1.10.3-0ubuntu2 is
available in trusty-proposed.
---------------
lightdm (1.10.3-0ubuntu2) trusty; urgency=medium
* Refresh patches
-- Robert Ancell <robert.ancell@xxxxxxxxxxxxx> Fri, 10 Oct 2014
21:24:51 +1300
lightdm (1.10.3-0ubuntu1) trusty; urgency=medium
* New upstream release:
- Fix crash when having configuration keys defined in multiple places
(LP: #1377373)
- Allow user switching in multi-seat until bug stopping greeter showing on
logout is fixed
- Don't access .dmrc files until information from these files is required
(LP: #1370852)
- Do timed autologin each time you are returned to the greeter
(LP: #1302491)
-- Robert Ancell <robert.ancell@xxxxxxxxxxxxx> Thu, 09 Oct 2014
09:01:21 +1300
lightdm (1.10.2-0ubuntu1) trusty; urgency=medium
* New upstream release:
- Use logind to provide the list of seats to use. This is disabled unless
logind-load-seats (in [LightDM] section) is set to true. This is the
default behaviour in lightdm 1.12. (LP: #1190581)
- Fix crash if running script hooks with non-X display servers.
(LP: #1305006)
- Add a seat option 'allow-user-switching' that can disable all user
switching for that seat. (LP: #1350357)
- Make PAM services configurable. (LP: #1348251)
- Add liblightdm method to get user UID. (LP: #1370327)
- Add a new session type 'mir-container' that allows the session to run
inside a custom system compositor. (LP: #1359332)
- Add --show-config option that shows combined configuration.
- Use XDG_SESSION_ID from PAM instead of using the logind D-Bus API.
(LP: #1364725)
- Make socket writing code used between greeter and daemon more robust to
errors.
- Correct section name in default users.conf file.
- Fix tests failing with Qt 5.3 due to it checking getuid/geteuid which we
are faking.
- Fix small memory leaks.
- Test improvements
-- Robert Ancell <robert.ancell@xxxxxxxxxxxxx> Wed, 17 Sep 2014
16:27:53 +1200
** Changed in: lightdm (Ubuntu Trusty)
Status: Triaged => Fix Committed
** Tags added: verification-needed
** Branch linked: lp:ubuntu/trusty-proposed/lightdm
--
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https://bugs.launchpad.net/bugs/1305006
Title:
Crashes running display server scripts for non X servers
Status in Light Display Manager:
Fix Released
Status in Light Display Manager 1.10 series:
Fix Released
Status in “lightdm” package in Ubuntu:
Fix Released
Status in “lightdm” source package in Trusty:
Fix Committed
Status in “lightdm” source package in Utopic:
Fix Released
Bug description:
[Impact]
Running non X server setups (e.g. Unity 8) and having display server scripts configured leads to LightDM crashing. This is due to a faulty assumption in LightDM assuming all display servers are X servers. Commonly caused by having nVidia prime support installed. Error reports in [1].
[Test Case]
1. Install the Unity 8 desktop preview
2. Configure a display setup script in the LightDM configuration:
[SeatDefaults]
display-setup-script=...
3. Start LightDM
4. Log in Unity 8
Expected result:
Setup script is run and you are logged into Unity 8
Observed result:
LightDM crashes
[Regression Potential]
Low, fix is simple. Tested with regression tests.
[1]
https://errors.ubuntu.com/bucket/?id=/usr/sbin/lightdm%3A11%3Ax_server_local_get_authority_file_path%3Aseat_xlocal_run_script%3Arun_script%3Adisplay_server_ready_cb%3A_g_closure_invoke_va
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