Hi All,
I'm jumping in this thread because I think this 'bug' is the source of
many scaling issues.
I'm the owner of a 13" laptop with a 3200x1800 native resolution. As
recommended elsewhere, I set the scale factor to 2 and most applications
are readable now. However, readable is does not mean correct.
Using 3 different tools, I get 3 different DPI. See below:
>get-edid | parse-edid
Section "Monitor"
Identifier ""
ModelName ""
VendorName "SDC"
# Monitor Manufactured week 0 of 2014
# EDID version 1.3
# Digital Display
DisplaySize 290 170
Gamma 2.20
Option "DPMS" "true"
Modeline "Mode 0" 361.31 3200 3248 3280 3316 1800 1802 1807 1816
-hsync -vsync
Modeline "Mode 1" 361.31 3200 3248 3280 3680 1800 1802 1807 2045
-hsync -vsync
EndSection
=> The above info results in about 280 DPI.
>xrdb -query | grep dpi
Xft.dpi: 192
>xdpyinfo | grep -B2 resolution
screen #0:
dimensions: 3200x1800 pixels (846x476 millimeters)
resolution: 96x96 dots per inch
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/589485
Title:
Ignores physical display size and calculates based on 96DPI
Status in X.Org X server:
Confirmed
Status in xorg-server package in Ubuntu:
Confirmed
Bug description:
The X server, starting with 1.7, ignores the physical size reported by
the EDID or in xorg.conf and calculates it based on screen resolution
and a DPI of 96.
This is rather annoying for users of high DPI screens.
GNOME and KDE (used?) to set 96 DPI by default in their settings. We
should check whether they still do, and if so let them handle this; I
don't think X should be handling this.
To manage notifications about this bug go to:
https://bugs.launchpad.net/xorg-server/+bug/589485/+subscriptions
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