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Third Party Issue
Votes
2
Found in
2019.3.0a3
2019.3.0b1
2019.4
2020.3
2021.1
2021.2
Issue ID
1181604
Regression
No
Windows title bar font size becomes very small when Unity UI Scaling is set to a higher value and Windows Scaling is changed
Repro steps:
1. Open attached project "1181604_DPI"
2. Open Preferences by going to Edit > Preferences and open the UI Scaling tab
3. Change "Use custom scaling value" to a bigger value than the default
4. Close Unity and open it back again
5. Open Windows Display settings and change Windows Scaling to a different value
Expected result: Scaling is changed and Title font size is proportionate to other window elements
Actual result: The title font size in the Title Bar is significantly smaller than other element font sizes
Reproducible with: 2019.3.0a3, 2019.4.26f1, 2020.3.8f1, 2021.1.7f1, 2021.2.0a17
Could not test with: 2018.4.35f1, 2019.3.0a2 (UI Scaling not implemented)
Note:
- Title font size is changed for other applications as well
- For maximum effect, change both UI Scaling and Windows Scaling to maximum values
Workaround: Signing out of your Windows account or restarting your computer
-
unity_B930BE387325E5B0FB76
Oct 04, 2023 10:13
The window title font problems may be caused by the SystemParametersInfoForDpi API call.
google "SystemParametersInfoForDpi will corrupt the window title font on rescaling". -
CyberAngel
Sep 13, 2021 09:35
And how does Unity also explain how this is only Affecting a certain Unity version onwards?
-
CyberAngel
Sep 13, 2021 09:33
And yet how does Unity explain how we can use our systems for months on end, and not have the titles of our windows change. In my case I have two computer systems, one had never had Unity installed, and has never had this issue. That computer has been around for 6 years, that is 6 years with no issues.
The moment, and I mean the moment I installed Unity on it and ran Unity Hub, nothing else, my Window Titles changed!
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Resolution Note (2021.2.X):
After a long investigation, this appears to be a Windows DPI bug. After completely disabling any code that we execute when DPI is changed it is still possible to reproduce the issue. According to our information it can also occur with other applications such as Notepad++ (but not as consistently) and in some cases can even be triggered by things such as a Windows update.