| Summary: | XDMCP gnome session unlock screen fails | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Christoph <c.handel> | ||||||
| Component: | gdm | Assignee: | Ray Strode [halfline] <rstrode> | ||||||
| Status: | CLOSED ERRATA | QA Contact: | Desktop QE <desktop-qa-list> | ||||||
| Severity: | high | Docs Contact: | |||||||
| Priority: | unspecified | ||||||||
| Version: | 7.2 | CC: | aladd, mboisver, modehnal, rstrode, tpelka | ||||||
| Target Milestone: | rc | ||||||||
| Target Release: | --- | ||||||||
| Hardware: | All | ||||||||
| OS: | Linux | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | gdm-3.14.2-18.el7 | Doc Type: | Bug Fix | ||||||
| Doc Text: | Story Points: | --- | |||||||
| Clone Of: | Environment: | ||||||||
| Last Closed: | 2016-11-04 06:40:20 UTC | Type: | Bug | ||||||
| Regression: | --- | Mount Type: | --- | ||||||
| Documentation: | --- | CRM: | |||||||
| Verified Versions: | Category: | --- | |||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||
| Attachments: |
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Created attachment 1186452 [details]
don't try to change vts on an xdmcp session
Following the steps in the description I was able to successfully log in/out/in of a XDMCP gnome session on gdm-3.14.2-18.el7. Verified. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHBA-2016-2451.html |
Created attachment 1133788 [details] journalctl output of gdm with debuglevel Description of problem: remote xdmcp session can't unlock the screen Version-Release number of selected component (if applicable): gdm-3.14.2-12.el7.x86_64 gnome-session-3.14.0-4.el7.x86_64 systemd-219-19.el7_2.4.x86_64 How reproducible: always. Steps to Reproduce: 1. install gnome desktop (yum install gnome-desktop) 2. add tcp listener to gdm by adding DisallowTCP=false to /etc/gdm/custom.conf 3. restart gdm (systemctl restart gdm.service) 4. access machine using xdmcp (on a linux workstation: Xephyr :1 -ac -br -screen 1024x768 -reset -terminate -query server.example.com) 5. log into gdm (using the gnome classic session) 6. see gnome desktop, so far so good. 7. lock the remote screen using the system menu in the top right corner of the gnome shell, lock icon (or wait till the automatic lock kicks in) 8. the gnome curtain displays. 9. hit enter, password prompt shows 10. enter password. Password prompt shows again. no error message. Actual results: can't unlock a remote gnome lock screen. Expected results: unlock and desktop shows again. Additional info: Unlocking the session using loginctl works. A locally (as in sitting in front of the servers keyboard) logged in user can lock and unlock the screen. Running gdm with debug enabled here is a shortened version of journalctl, a longer version is attached gdm[16832]: GdmSessionWorker: state AUTHENTICATED gdm[16832]: GdmSessionWorker: state AUTHORIZED gdm[16832]: GdmSessionWorker: state ACCREDITED gdm[16832]: GdmCommon: process (pid:18514) done (status:0) gdm[16832]: GdmSession: Emitting 'reauthenticated' signal gdm[16832]: GLib: g_variant_new_string: assertion 'string != NULL' failed gdm[16832]: GdmManager: logind 'ActivateSessionOnSeat' org.freedesktop.login1.NoSuchSeat raised: gdm[16832]: GDBus.Error:org.freedesktop.login1.NoSuchSeat: No seat '[Invalid UTF-8]' known gdm[16832]: GdmManager: unable to activate session: 26 The glib error and the invalid utf8 look suspicious.