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[Bug 715316] New: X uses high CPU when using sgi-fonts
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Wed, 31 Aug 2011 19:02:07 +0000
  • Message-id: <>

Summary: X uses high CPU when using sgi-fonts
Classification: openSUSE
Product: openSUSE 11.4
Version: Final
Platform: x86-64
OS/Version: openSUSE 11.4
Status: NEW
Severity: Major
Priority: P5 - None
Component: KDE4 Applications
AssignedTo: kde-maintainers@xxxxxxx
ReportedBy: pablo@xxxxxxxxxxxxx
QAContact: qa@xxxxxxx
Found By: ---
Blocker: ---

User-Agent: Mozilla/5.0 (X11; Linux i686; rv:6.0) Gecko/20100101


I decided to test `Factory aka. KDF (KDE SC 4.7)' and found that `X' is using a
high percentage of CPU when I'm using `sgi-fonts' with `Konsole'

It took bifurcation to narrow down the issue but I have a reproducible test

Also, I suspect other applications which are using `sgi-font's will cause high
CPU usage for X as well.

Reproducible: Always

Steps to Reproduce:
1. openSUSE 11.4 + KDF (KDE SC 4.7) + `sgi-fonts'
2. In one `konsole', type `top' - ensure you're using the default Monospace
3. In a second `konsole' window, type `man bash', and page through the pages.
Note X CPU usage.
4. Now, in second `konsole', configure `konsole' to use the `SGI Screen' font.
5. Repeat `man bash' test
Actual Results:
On my system, X uses between 16-20% of a CPU (2.4 GHz, T7700) at idle with two
`konsole' windows; one at a prompt and the other running `top'

Expected Results:
Using KDE 4.6, default `openSUSE 11.4', under the same conditions, X uses 1-2%.

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