Firefox Nightly 112a on Linux AMD64 / KDE with 200% zoom finds a way to display 400% zoom
Categories
(Core :: Widget: Gtk, defect)
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(Reporter: kennylewis, Unassigned)
Details
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(1 file)
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255.54 KB,
image/png
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Details |
Firefox_Nightly_112a_Linux_KDE_Scaling_20230310_084915.png
User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/112.0
Steps to reproduce:
I'm using my Linunx KDE desktop with scaling set at 200% for the high-DPI screens I use, and unexpectedly the Firefox window doubles its scaling again.
I'm unsure of the exact trigger, seems to happen when an update is downloaded -- could it be recomputing GL scaling size incorrectly?
Actual results:
...unexpectedly Firefox Nightly 112alpha1 doubles its scaling size. See screenshot, while pretty, it's too large for my preferrences.
Expected results:
No change in display rendering.
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Comment 1•2 years ago
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The Bugbug bot thinks this bug should belong to the 'Core::Widget: Gtk' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.
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Comment 2•2 years ago
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Does it happen after a restart? What about a clean profile? How does e.g. gedit behave?
Also what KDE version? This looks a lot like https://bugs.kde.org/show_bug.cgi?id=442901 or in that vicinity.
My guess is that KDE is somehow setting both the text scale and the display scale. But on Wayland and plasma 5.27.2 it looks fine here.
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Reporter | |
Comment 3•2 years ago
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It happens unpredictably. I couldn't get gedit to replicate the behaviour, and I am in the middle of that KDE version range. Then an update puts KDE Plasma 5.27.2 on my system and maybe I'm out of the window.
Conseqently I'm happy to set RESOLVED INVALID for this case, with caveat to reopen if it happens again.
People may come across this again so, for clarity, here's more diagnostic information...
Operating System: Debian GNU/Linux 12
KDE Plasma Version: 5.26.90
KDE Frameworks Version: 5.103.0
Qt Version: 5.15.8
Kernel Version: 6.1.0-5-amd64 (64-bit)
Graphics Platform: X11
xrandr | grep -w connected
DisplayPort-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 600mm x 340mm
HDMI-A-0 connected 3840x2160+3839+0 (normal left inverted right x axis y axis) 600mm x 340mm
xdpyinfo | grep -B2 resolution
screen #0:
dimensions: 7679x2160 pixels (2029x571 millimeters)
resolution: 96x96 dots per inch
...while KDE force-sets Xft.dpi at my version to 192
xrdb -query | grep dpi
Xft.dpi: 192
Description
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