https://bugs.kde.org/show_bug.cgi?id=370924
Bug ID: 370924
Summary: Brightness slider slowly "moving back" after dragging
the slider thumb.
Product: plasmashell
Version: 5.8.0
Platform: Archlinux Packages
OS
https://bugs.kde.org/show_bug.cgi?id=370003
Bug ID: 370003
Summary: Performance issues (laggy animations, stuttering
keyboard input handling, severe frame drops in videos)
after using plasmashell for a few days
Product: plas
https://bugs.kde.org/show_bug.cgi?id=370003
--- Comment #1 from Rob ---
Created attachment 101422
--> https://bugs.kde.org/attachment.cgi?id=101422&action=edit
perf record -e cpu-clock -p `pidof plasmashell` # After restarting plasmashell
For comparison, this is what I get right when I switch
https://bugs.kde.org/show_bug.cgi?id=370003
--- Comment #3 from Rob ---
One of the issues is that animations is slow. Switching desktops includes an
animation (the cube animation in my case), hence I used that as a test.
I don't know whether the observation in the perf recording is related to my
https://bugs.kde.org/show_bug.cgi?id=361646
--- Comment #6 from Rob ---
Created attachment 98551
--> https://bugs.kde.org/attachment.cgi?id=98551&action=edit
Callgraph for KStars when in "slow down" state
This is a callgraph output from kcachegrind after I loaded it with callgrind
output from
https://bugs.kde.org/show_bug.cgi?id=361646
--- Comment #7 from Rob ---
Above I've added a callgraph that was generated as follows:
- Clean reboot of computer
- Start kstars under callgrind to generate a callgrind log
- Wait for it to get to about 20% loaded NGIC/IC objects
- Give up 'cos I know
https://bugs.kde.org/show_bug.cgi?id=361646
--- Comment #8 from Rob ---
Created attachment 98552
--> https://bugs.kde.org/attachment.cgi?id=98552&action=edit
kcachegrind overview
The top-level view from kcachegrind of the callgrind tree. Detailed views for
each kstars element above the 20% ma
https://bugs.kde.org/show_bug.cgi?id=361646
--- Comment #9 from Rob ---
Created attachment 98553
--> https://bugs.kde.org/attachment.cgi?id=98553&action=edit
kcachegrind screenshots for each item > 20% (part 1)
Detailed views for each kstars element in the callgrind tree above 20% (part
1).
-
https://bugs.kde.org/show_bug.cgi?id=361646
--- Comment #10 from Rob ---
Created attachment 98554
--> https://bugs.kde.org/attachment.cgi?id=98554&action=edit
kcachegrind screenshots for each item > 20% (part 2)
Detailed views for each kstars element in the callgrind tree above 20% (part
2).
https://bugs.kde.org/show_bug.cgi?id=361646
--- Comment #11 from Rob ---
In case there is anything that looks unusual, I do still have the callgrind
output loaded in kcachegrind and i will [attempt to remember to] not close
kcachegrind or shut down the computer...!
Rob
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https://bugs.kde.org/show_bug.cgi?id=361646
--- Comment #12 from Rob ---
Created attachment 98568
--> https://bugs.kde.org/attachment.cgi?id=98568&action=edit
HTMesh_performIntersection callgraph
One thing: RangeConvex::testTrixel() seems to be recursive: surely that's not
good?
Rob
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https://bugs.kde.org/show_bug.cgi?id=361646
--- Comment #13 from Rob ---
Created attachment 98674
--> https://bugs.kde.org/attachment.cgi?id=98674&action=edit
EKOS window freezes 1
OK, let's try a different attack. The attached callgrind output was taken as
follows:
- Run kstars with Valgrin
https://bugs.kde.org/show_bug.cgi?id=361646
--- Comment #14 from Rob ---
Created attachment 98675
--> https://bugs.kde.org/attachment.cgi?id=98675&action=edit
EKOS window freezes 2
This is another case of the same EKOS window freezing, captured in the same
way.
Rob
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https://bugs.kde.org/show_bug.cgi?id=361646
--- Comment #15 from Rob ---
Created attachment 98676
--> https://bugs.kde.org/attachment.cgi?id=98676&action=edit
Normal case for comparison
This is a normal case, no EKOS window freezing, for comparison.
Note that I'm not at all sure that these fr
https://bugs.kde.org/show_bug.cgi?id=361646
--- Comment #17 from Rob ---
That's excellent news, I'll update tomorrow and let you know how it goes.
Many thanks.
Rob
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https://bugs.kde.org/show_bug.cgi?id=361646
--- Comment #18 from Rob ---
Hi Jasem. I tried
sudo apt-get install kstars-bleeding
...last night but no update. Should I have seen one?
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--- Comment #20 from Rob ---
Ah, yes, got it now, testing...
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--- Comment #22 from Rob ---
I've not reached a conclusion yet, but results so far suggest:
- the latest KStars may be slightly better but the slow down is still there
(sorry!)
- switching off as much OpenGL as I can in the video driver doesn't help
-
https://bugs.kde.org/show_bug.cgi?id=361646
--- Comment #23 from Rob ---
OK, I think I have confirmed to my satisfaction that there are two things going
on here:
1. My laptop sometimes suffers from a generic slow-down which seems to be
connected with the fan not running aggressively enough. Lo
https://bugs.kde.org/show_bug.cgi?id=362822
Bug ID: 362822
Summary: KStars receives segfault in libqcxb when I close my
laptop lid
Product: kstars
Version: unspecified
Platform: Other
OS: Linux
S
https://bugs.kde.org/show_bug.cgi?id=362822
--- Comment #2 from Rob ---
Thanks Jasem. For now I've set IgnoreLid=true in /etc/UPower/Upower.conf and
that's a sufficient workaround for me.
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https://bugs.kde.org/show_bug.cgi?id=361646
Bug ID: 361646
Summary: KStars hogs CPU until unusable
Product: kstars
Version: unspecified
Platform: Ubuntu Packages
OS: Linux
Status: UNCONFIRMED
Severity: nor
https://bugs.kde.org/show_bug.cgi?id=361646
Rob changed:
What|Removed |Added
Keywords||reproducible, usability
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https://bugs.kde.org/show_bug.cgi?id=361646
--- Comment #1 from Rob ---
One more thing: before running on Xubuntu I had tried KStars on Ubuntu and the
situation was the same.
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https://bugs.kde.org/show_bug.cgi?id=361646
--- Comment #2 from Rob ---
FYI, I've tried disabling all OpenGL items in the NVidia X Server Settings
dialogue and selecting "High Performance" for the image settings rather than
"Quality", then rebooting. I've also tried switching off stars, planets
https://bugs.kde.org/show_bug.cgi?id=361646
--- Comment #5 from Rob ---
Thanks for the comments guys. I agree that this is likely some interaction
with the graphics driver. I suggest that we keep this open while I experiment
with settings so that we can track the resolution here. I'll also see
https://bugs.kde.org/show_bug.cgi?id=359066
Bug ID: 359066
Summary: Plasma workspace freezes for 10 seconds upon selecting
text in an untrusted X11 session (e.g. ssh -X)
Product: plasmashell
Version: 5.5.3
Platform: Archlin
https://bugs.kde.org/show_bug.cgi?id=359066
--- Comment #1 from Rob ---
Created attachment 97047
--> https://bugs.kde.org/attachment.cgi?id=97047&action=edit
Full output of sudo gdb -q -p `pidof plasmashell` -batch -ex 'thread apply all
bt'
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--- Comment #2 from Rob ---
I found this bug while selecting text, but the same happens when I use Ctrl+C
to copy to the clipboard.
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https://bugs.kde.org/show_bug.cgi?id=359066
--- Comment #4 from Rob ---
I digged up an old debug build of Qt (5.5.1) and got the following. It seems to
get stuck for too long in QXcbClipboard::waitForClipboardEvent.
Thread 1 (Thread 0x7f714e57d800 (LWP 27821)):
#0 0x7f7148264e23 in select (
https://bugs.kde.org/show_bug.cgi?id=359424
Bug ID: 359424
Summary: KMid crashes on opening some MIDI files
Product: kmid
Version: 2.4.0
Platform: openSUSE RPMs
OS: Linux
Status: UNCONFIRMED
Keywords: drko
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