https://bugs.documentfoundation.org/show_bug.cgi?id=138175
Bug ID: 138175
Summary: Writer maxes out CPU core when table has dotted/dashed
borders
Product: LibreOffice
Version: 6.4.6.2 release
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Writer
Assignee: [email protected]
Reporter: [email protected]
Description:
When I create a table and set the border line style to "Dotted", pressing Tab
to step through table cells and then create new table rows, LO-Writer becomes
increasingly slow and unusable.
Changing the border line style back to "Solid", or to "None" works around the
problem. I've not tried all the line styles, but certainly "Dotted" and
"Dashed" exhibited this problem.
Steps to Reproduce:
1. Start LibreOffice Writer
2. Insert a table - I use the tool-bar icon, and insert (say) 4 x 4, but I
don't think size is particularly part of the problem
3. Right click the table and choose Table Properties...
4. Click the Borders tab, change the Line Style to "dotted" (it's the second
one down, underneath the default "solid"), and click OK to close the Table
Properties dialog
5. With the cursor in any of the table cells, press tab. Keep pressing tab
until it starts adding new rows - cursor movement will slow and a CPU core will
be running at/near 100%
Actual Results:
LO-Writer becomes increasingly slow as Tab is pressed and table rows are added.
Expected Results:
Should perform the same as with border line style None or Solid which work
perfectly.
Reproducible: Always
User Profile Reset: Yes
OpenGL enabled: Yes
Additional Info:
About LibreOffice says:
"
Version: 6.4.6.2
Build ID: 1:6.4.6-0ubuntu0.20.04.1
CPU threads: 4; OS: Linux 5.4; UI render: default; VCL: gtk3;
Locale: en-GB (en_GB.UTF-8); UI-Language: en-GB
Calc: threaded
"
I'm running Linux Mint Cinnamon 20 (64-bit) on an old Core i5 with 8GB RAM and
nVidia GT1030 GPU.
I originally posted the issue here (along with a bunch of system-config info in
case it's useful):
https://forums.linuxmint.com/viewtopic.php?f=47&t=334928
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