| Summary: | LightDM GTK greeter has a long pause between username and password entry on system with 3000+ users. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Phil! Gold <phil_g> |
| Component: | lightdm-gtk | Assignee: | Rex Dieter <rdieter> |
| Status: | CLOSED EOL | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 20 | CC: | cwickert, dan.mashal, gregor, rdieter |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2015-06-29 13:36:13 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: | |
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Description of problem: I have a system with about 3000 user accounts (all in /etc/passwd). When I use the LightDM GTK greeter (with `greeter-hide-users=true`), as soon as focus leaves the username entry box the greeter freezes for about ten seconds. In case it makes a difference, I'm using AccountsService and all of the accounts have their home directories on NFS (but I get the same behavior when /home is not mounted at all). I'm using AccountsService, and here's my /etc/lightdm/lightdm.conf: [LightDM] minimum-vt=1 user-authority-in-system-dir=true [SeatDefaults] xserver-command=X -background none greeter-session=lightdm-gtk-greeter greeter-hide-users=true greeter-show-manual-login=true user-session=mate allow-guest=false session-wrapper=/etc/X11/xinit/Xsession [XDMCPServer] enabled=false [VNCServer] enabled=false Version-Release number of selected component (if applicable): lightdm-1.8.5-2.fc20.x86_64 lightdm-gtk-1.6.1-2.fc20.x86_64 accountsservice-0.6.35-3.fc20.x86_64 How reproducible: It happens the first time focus leaves the username box after the greeter is launched, but it happens *every* time a new greeter is launched. Steps to Reproduce: 1. Set up system with 3000 user accounts. 2. Start LightDM with above lightdm.conf. 3. Type at least one character into the username field. 4. Cause focus to go elsewhere (press tab, click on the password field, etc.) Actual results: For about ten seconds, the focus highlight remains on the username field and the greeter becomes unresponsive (keypresses do nothing; the mouse cursor moves but clicks on UI elements, including the menus in the screen corner, do nothing). After about ten seconds, focus shifts to the password field and the greeter UI reacts normally to events. Expected results: Focus should shift to the password field without any noticeable delay so that the person can begin typing their password immediately. Additional info: