This bug was fixed in the package unity-settings-daemon -
15.04.1+18.04.20180413-0ubuntu3
---------------
unity-settings-daemon (15.04.1+18.04.20180413-0ubuntu3) cosmic; urgency=medium
[ Dariusz Gadomski ]
* gnome-settings-daemon/display-name.c:
- some vendors record the screen ratio (e.g 16/9) in the EDID instead
of including the screen size, detect those cases and display
the product name instead of the screen diagonal. (lp: #1755490)
-- Sebastien Bacher <seb...@ubuntu.com> Tue, 20 Nov 2018 16:07:31
+0100
** Changed in: unity-settings-daemon (Ubuntu Cosmic)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1755490
Title:
Incorrect information about display shown in gnome/unity-control-
center
Status in hwdata package in Ubuntu:
Fix Released
Status in unity-settings-daemon package in Ubuntu:
Fix Released
Status in unity-settings-daemon source package in Xenial:
Fix Committed
Status in unity-settings-daemon source package in Bionic:
Fix Released
Status in unity-settings-daemon source package in Cosmic:
Fix Released
Bug description:
[Impact]
* There is a number of display devices that misuse the width & height field
in EDID. Instead of real size in centimeters it contains encoded aspect ratio
(e.g. 1600x900, 16x10, 160x90).
This leads to incorrect calculation of diagonal for the purpose of e.g. Unity
settings app.
[Test Case]
1. Connect a display device that provides incorrect EDID data (e.g. LG
49UB850T-DA TV).
2. Open the Displays section of Unity settings.
3. Look for the name of the newly connected display in the settings window.
Expected result:
Display name should contain its real diagonal or model name (if dimensions
are not availabe).
Actual result:
Display name contains a ridiculous diagonal (e.g. 72" in case of a 49"
display).
[Regression Potential]
* This affects the way the display name will be formatted for any
software using unity-settings-daemon. If anything is testing/comparing
display names - it may fail.
[Other Info]
* Original bug description:
After connecting a LG 49UB850T-DA TV the following information is
displayed in the unity-control-center: Goldstar Company Ltd 72"
It's misleading since neither the company name nor the diagonal
matches.
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