Bug 97293 - UI hangs when showing print dialog with unreachable IPP printer (CUPS)
Summary: UI hangs when showing print dialog with unreachable IPP printer (CUPS)
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Printing and PDF export (show other bugs)
(earliest affected) release
Hardware: All Linux (All)
: medium major
Assignee: Not Assigned
Depends on:
Blocks: Print-Dialog Network
  Show dependency treegraph
Reported: 2016-01-21 10:09 UTC by Felipe Borges
Modified: 2019-01-09 03:45 UTC (History)
1 user (show)

See Also:
Crash report or crash signature:


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Description Felipe Borges 2016-01-21 10:09:25 UTC
If I add an unreachable CUPS server to my /etc/cups/client.conf and try to open the Print Dialog on LibreOffice, it freezes the whole UI.

Suggestion: the CUPS request for printers (cupsGetDests or http request) should be done in another thread.

How to reproduce:
1. Open /etc/cups/client.conf
2. Append "ServerName cups.nikhef.nl" (with no quotes), and save.
3. Open any LibreOffice application and try to print something.

Actual results:
UI freezes

Expected results:
Print Dialog to show.
Comment 1 Buovjaga 2016-01-26 13:06:59 UTC
Repro, but not in 5.0.4.

Felipe: what version did you try with?

Ubuntu 15.10 64-bit 
Build ID: 1:5.0.4~rc2-0ubuntu1~wily1
Locale: en-US (en_US.UTF-8)

Build ID: c43fdd74097cb12f69f86fd1217dd2f41ccae101
CPU Threads: 2; OS Version: Linux 4.2; UI Render: default; 
TinderBox: Linux-rpm_deb-x86_64@70-TDF-dbg, Branch:master, Time: 2016-01-25_23:43:01
Locale: en-US (en_US.UTF-8)
Comment 2 Felipe Borges 2016-01-26 13:46:35 UTC
Fedora 23 64bits
Build ID:

version packaged on Fedora 23.
Comment 3 Buovjaga 2016-01-26 13:56:41 UTC
Strange.. it only hangs for me in 5.2.
Comment 4 RafaU 2018-01-08 10:40:33 UTC
The issue with "ghost" printer has a serious impact on the "styles and formatting" window (and "format->character" etc.), which freezes for about 5-10 seconds.

Build ID: 1:5.4.4~rc2-0ubuntu0.16.04.1~lo1
CPU threads: 4; OS: Linux 4.10; UI render: domyślny; VCL: gtk3; 
Ustawienia regionalne: pl-PL (pl_PL.UTF-8); Calc: group

Description:	Ubuntu 16.04.3 LTS
Comment 5 QA Administrators 2019-01-09 03:45:09 UTC
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