https://bugs.kde.org/show_bug.cgi?id=361619
Boudewijn Rempt changed:
What|Removed |Added
CC||halfsp...@mail.com
--- Comment #42 from Boude
https://bugs.kde.org/show_bug.cgi?id=361619
--- Comment #41 from Dmitry Kazakov ---
Git commit 3fba314ffa7fcb3d07f62be9f04fbe5ad8978286 by Dmitry Kazakov.
Committed on 22/04/2016 at 15:56.
Pushed by dkazakov into branch 'master'.
Add a workaround for Qt's event compression bug
This environment
https://bugs.kde.org/show_bug.cgi?id=361619
--- Comment #40 from Dmitry Kazakov ---
Hi, Tyson!
Still they include a better Qt than 15.10. I cannot remember what exactly, but
some small Krita features are disabled on Qt 5.4 :)
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--- Comment #39 from Tyson Tan ---
Thanks! Silly me to think 16.04 would have included the newest Qt...as if they
ever did! lol
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--- Comment #38 from Dmitry Kazakov ---
Hi, Tyson!
Ubuntu 16.04 has Qt 5.5.1, so the problem will not happen on it at all, until
Canonical decides to update it. Though atm we are discussing with people in Qt
how we can workaround it and make Krita Lime
https://bugs.kde.org/show_bug.cgi?id=361619
--- Comment #37 from Tyson Tan ---
Just tested Krita3-testing (2+git20160407+r9-67~ubuntu16.04.1) from Krita Lime
PPA on Ubuntu 16.04. The slowdown did not happen.
Well I don't know what is happening anymore XD
Anyway. I will be using krita3-testing f
https://bugs.kde.org/show_bug.cgi?id=361619
--- Comment #36 from Tyson Tan ---
Thank you! Please update the Krita Lime PPA so I can test them. Krita 3.0
builds are only available for 16.04 so I upgraded to it, but Krita 2.9.11 from
that PPA is not installable as it requires libgsl0ldbl (>=1.9), w
https://bugs.kde.org/show_bug.cgi?id=361619
Dmitry Kazakov changed:
What|Removed |Added
Status|CONFIRMED |RESOLVED
Latest Commit|
https://bugs.kde.org/show_bug.cgi?id=361619
--- Comment #34 from Dmitry Kazakov ---
Hi, Tyson!
Did you compile Qt yourself or you use the system's one? Qt 5.4.2, right?
The point is that the real cause of bended lines was introduced in Qt 5.6. But
if you say that Qt 5.4.2 is also affected, then
https://bugs.kde.org/show_bug.cgi?id=361619
--- Comment #33 from Tyson Tan ---
I mean, I built my own binaries from the source code on Ubuntu 15.10, and it
still has the same problem.
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--- Comment #32 from Dmitry Kazakov ---
Well, AppImage has Qt 5.6 bundled inside :) Anyway, I'm going to work on this
bug today
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--- Comment #31 from Tyson Tan ---
But I'm using Ubuntu 15.10, it has Qt 5.4.2 with it. Both AppImage and my local
build had this problem, while Windows version seems to work fine. I'm not very
sure about the speculation in Comment 30.
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--- Comment #30 from Dmitry Kazakov ---
I got a new PC with AMD on Saturday. The first tries show that the problem is
not only in AMD. It is in combination of Qt 5.6, AMD and openGL mode. Absence
of any part of the equation, make the bug not reproducibl
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--- Comment #29 from Boudewijn Rempt ---
The box is being assembled :-)
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--- Comment #28 from Boudewijn Rempt ---
11:29:04 < dmitryK|log> boud: ok, ordered with delivery on Saturday :)
11:30:04 < dmitryK|log> boud: Tyson's recommendations are almost exactly the
same as I ordered
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--- Comment #27 from Tyson Tan ---
GPU wise you may consider:
AMD Radeon R7 360 -- basically the same chipset as AMD Firepro W5100, supports
D3D 12, OpenGL 4.5 and OpenCL 2.0, with a TDP of 100W, requires a 6pin power
supply. Price range: $109.
AMD Ra
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--- Comment #26 from Boudewijn Rempt ---
Plotted measurements: http://nonaynever.ru/pub/tablet_logging.pdf
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--- Comment #25 from Boudewijn Rempt ---
Dmitry's laptop has an amd gpu, but that doesn't work at all. We're speccing &
pricing a test system now so the Foundation can buy one for Dmitry. It'll also
be useful to check the other bug reports we have about
https://bugs.kde.org/show_bug.cgi?id=361619
--- Comment #24 from Tyson Tan ---
Created attachment 98370
--> https://bugs.kde.org/attachment.cgi?id=98370&action=edit
Recored desktop video of Krita 2.9.11 drawing when OpenGL is ON
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--- Comment #23 from Tyson Tan ---
Created attachment 98369
--> https://bugs.kde.org/attachment.cgi?id=98369&action=edit
Recored desktop video of Krita 3.0 alpha lags when OpenGL is ON
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--- Comment #22 from Tyson Tan ---
Correction for Comment 21:
When using the Appimage version, with Crosshair cursor, Brush Outline and
Instant Preview, logging options all checked, Krita crashes immediately WHEN I
DRAW SOMETHING.
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--- Comment #21 from Tyson Tan ---
Hi Dmitry, When using the Appimage version, with Crosshair cursor, Brush
Outline and Instant Preview, logging options all checked, Krita crashes
immediately. The terminal says "Segment fault". I don't see "glSync
effec
https://bugs.kde.org/show_bug.cgi?id=361619
--- Comment #20 from Dmitry Kazakov ---
Hi, Tyson!
Can I ask you to record a video with the slowdown? Activate crosshair cursor +
brush brush outline dispay, so I could see the real delay.
I would also like to know, what happens if you activate openGL
https://bugs.kde.org/show_bug.cgi?id=361619
Boudewijn Rempt changed:
What|Removed |Added
Ever confirmed|0 |1
Status|UNCONFIRMED
https://bugs.kde.org/show_bug.cgi?id=361619
Dmitry Kazakov changed:
What|Removed |Added
CC||dimul...@gmail.com
--- Comment #18 from Dmitry
https://bugs.kde.org/show_bug.cgi?id=361619
--- Comment #17 from Tyson Tan ---
Tested under Windows 10 x64 on my Xeon/Firepro W5100 machine. There is no
slowdown or it was very hard to notice. Curves don't become straight lines.
However, the slow antialiasing described in Comment 16 is still not
https://bugs.kde.org/show_bug.cgi?id=361619
--- Comment #16 from Tyson Tan ---
Created attachment 98352
--> https://bugs.kde.org/attachment.cgi?id=98352&action=edit
Krita 3.0 alpha slow antialiasing
LEFT: during the stroke
RIGHT: 1 second after the stroke is made
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--- Comment #15 from Tyson Tan ---
I've built Krita 3.0 Alpha locally, and things behave a bit differently now:
1. Krita's performance logging still fails, but it now shows
"QFSFileEngine::open: No file name specified" instead.
2. Slowdowns still occu
https://bugs.kde.org/show_bug.cgi?id=361619
--- Comment #14 from Boudewijn Rempt ---
That actually sounds like Dmitry's logging code got broken! I'll try to
investigate it
on the train home from work...
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--- Comment #13 from Tyson Tan ---
I tested mostly using Fill_circle but every preset lags.
I tried enabling logging but I could find the log. Krita says it saves those in
, I suppose it's the same directory where I saved the .kra file?
The terminal re
https://bugs.kde.org/show_bug.cgi?id=361619
--- Comment #12 from Boudewijn Rempt ---
Could you make a test with performance logging and opengl logging enabled?
Also, which preset are you using to test with?
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--- Comment #11 from Tyson Tan ---
Hi Boud, that option has no effect either. As long as OpenGL is ON, I can't
find any options that can alleviate the problem. If there is more test I can
do, please tell me how to.
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Boudewijn Rempt changed:
What|Removed |Added
CC||b...@valdyas.org
--- Comment #10 from Boudewi
https://bugs.kde.org/show_bug.cgi?id=361619
--- Comment #9 from Tyson Tan ---
Hi wolthera, that option has no effect at all.
I've also tested this on another PC running Xeon E3-1230v5 and AMD Firepro
W5100 using proprietary driver, the result was the same.
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--- Comment #8 from wolthera
https://bugs.kde.org/show_bug.cgi?id=361619
--- Comment #7 from Tyson Tan ---
Tested on Ubuntu 15.10 64-Bit
CPU: Intel® Core™ i5-3470 CPU @ 3.20GHz × 4
RAM: 15.6 GiB
GPU: AMD Firepro V4900, opensource driver, Gallium 0.4 on AMD TURKS (DRM
2.43.0, LLVM 3.6.2)
Krita 2.9 runs fine on this setup.
-
https://bugs.kde.org/show_bug.cgi?id=361619
--- Comment #6 from Tyson Tan ---
Created attachment 98333
--> https://bugs.kde.org/attachment.cgi?id=98333&action=edit
Krita 3.0 Alpha input not lagging when OpenGL is OFF with large window, tablet
log
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--- Comment #5 from Tyson Tan ---
Created attachment 98332
--> https://bugs.kde.org/attachment.cgi?id=98332&action=edit
Krita 3.0 Alpha input not very lagging when OpenGL is ON with small window,
tablet log
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--- Comment #4 from Tyson Tan ---
Created attachment 98331
--> https://bugs.kde.org/attachment.cgi?id=98331&action=edit
Krita 3.0 Alpha input lagging when OpenGL is ON with large window, tablet log
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--- Comment #3 from Tyson Tan ---
Created attachment 98330
--> https://bugs.kde.org/attachment.cgi?id=98330&action=edit
Krita 3.0 Alpha input not lagging when OpenGL is OFF with large window
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--- Comment #2 from Tyson Tan ---
Created attachment 98329
--> https://bugs.kde.org/attachment.cgi?id=98329&action=edit
Krita 3.0 Alpha input not very lagging when OpenGL is ON with small window
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--- Comment #1 from Tyson Tan ---
Created attachment 98328
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Krita 3.0 Alpha input lagging when OpenGL is ON with large window
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