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Ugly fonts in KDE apps with Qt-5.14 (again with 5.15.2)
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pickd.mask
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Joined: 02 Aug 2011
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PostPosted: Thu Jan 16, 2020 10:54 pm    Post subject: Ugly fonts in KDE apps with Qt-5.14 (again with 5.15.2) Reply with quote

The title is self-explanatory.

Once I upgrade to Qt 5.14, font size increases for no reason in KDE Apps (Systemsettings, Dolphin, Kwrite etc etc) and becomes a bit blurry on my screen. Anyhow, that behavior is not expected or appreciated.
When I downgrade all dev-qt libs back to 5.13, everything reverts back to normal.
Here's how it looks like: https://imgur.com/4TPWKAR

I've googled and found out that some people have issue like that, but not exactly the same: https://www.reddit.com/r/cpp/comments/e9pp79/qt_514_released/falu04x?utm_source=share&utm_medium=web2x
Tried to update and therefore downgrade 3 times with every latest and greatest KDE update since mid-December 2019, no luck so far.

Not sure if it's a bug or I am missing something.
Any advice is gladly appreciated.


Last edited by pickd.mask on Tue Dec 22, 2020 5:26 pm; edited 2 times in total
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asturm
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Joined: 05 Apr 2007
Posts: 9014

PostPosted: Thu Jan 16, 2020 11:56 pm    Post subject: Reply with quote

There are issues with Qt 5.14.0 in that regard.

I just pushed dev-qt/qtgui-5.14.0-r2 containing this fix: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=2097e30779ee62d4846364fbc86a33a61798ad37

Please test.
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pickd.mask
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PostPosted: Fri Jan 17, 2020 12:43 pm    Post subject: Reply with quote

asturm wrote:
There are issues with Qt 5.14.0 in that regard.

I just pushed dev-qt/qtgui-5.14.0-r2 containing this fix: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=2097e30779ee62d4846364fbc86a33a61798ad37

Please test.


Thanks for reply.

Just tested it and it works great. Everything looks just fine as it supposed to be.
Huge thanks for the patch.

And just in case here's my OS' specs:
Emerge --info: https://pastebin.com/imVrbAhA
kde-plasma 5.7.15
kde-frameworks 5.66.0
kde-apps 19.12.1
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pickd.mask
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Joined: 02 Aug 2011
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PostPosted: Mon Dec 21, 2020 2:42 pm    Post subject: Reply with quote

Sorry about necroposting, but this issue is back again with qtgui-5.15.2. Tried previous patch, but patching failed because the file has
Code:
m_active = m_globalScalingActive || m_screenFactorSet || m_pixelDensityScalingActive;

already.

No idea what that is, but it seems that the previous patch changed m_usePixelDensity to m_pixelDensityScalingActive. And m_usePixelDensity is no longer present in this line.

(It's strange that I don't see any other bug reports on bugs.gentoo or QT bugtracker. Is it just my setup and / or settings?)
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pickd.mask
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PostPosted: Fri Dec 25, 2020 6:10 pm    Post subject: Reply with quote

Filed a bug: https://bugs.gentoo.org/761670
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