Weird Scan Line Style Artifacts When Using Terminal

[stevenhardey]

Environment

Windows build number: Win32NT 10.0.19041.0 Microsoft Windows NT 10.0.19041.0
Windows Terminal version: 1.0.401.0
Any other software? 
No, but installed:
- 7-Zip (x64 edition) 19.00.00.0
- AMD Software 20.4.1
- Apple Application Support (32-bit) 8.4
- Apple Application Support (64-bit) 8.4
- Apple Mobile Device Support 13.5.0.26
- Apple Software Update 2.6.3.1
- Authy Desktop 1.8.1
- Battle.net    
- BleachBit 4.0.0.1628
- Bonjour 3.1.0.1
- Call of Duty Modern Warfare   
- chocolatey 0.10.15
- chocolatey.extension 2.0.3
- chocolatey-core.extension 1.3.5.1
- chocolatey-windowsupdate.extension 1.04
- Cisco Webex Meetings 40.4.10.8
- Citrix Workspace 2006 20.6.0.38
- CutePDF Writer 4
- Discord 0.0.306
- Epson FAX Utility 3.06.00
- Epson PC-FAX Driver   
- Epson Scan 2  
- Epson Software Updater 4.5.4
- EPSON WF-4740 Series Printer Uninstall    
- EpsonNet Print 3.1.4.0
- git 2.27.0
- golang 1.14.3
- Google Chrome 83.0.4103.97
- HashTab 6.0.0.34
- ImageGlass 7.6.4.30
- Intel(R) Management Engine Components 11.0.0.1153
- iTunes 12.10.6.2
- Java 8 Update 251 8.0.2510.8
- Java 8 Update 251 (64-bit) 8.0.2510.8
- kitty 0.73.2.16
- Microsoft 365 Family - en-us 16.0.12827.20268
- Microsoft Project Professional 2019 - en-us 16.0.12827.20268
- Microsoft Teams 1.3.00.9267
- Microsoft Visio - en-us   16.0.12827.20268
- Microsoft Visual C++ 2005 Redistributable 8.0.61001
- Microsoft Visual C++ 2005 Redistributable (x64)   8.0.61000
- Microsoft Visual C++ 2008 Redistributable - x64 9.0.30729.6161
- Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.6161
- Microsoft Visual C++ 2010  x64 Redistributable - 10.0.40219
- Microsoft Visual C++ 2010  x86 Redistributable - 10.0.40219
- Microsoft Visual C++ 2012 Redistributable (x64) - 11.0.6103.0
- Microsoft Visual C++ 2012 Redistributable (x86) - 11.0.6103.0
- Microsoft Visual C++ 2013 Redistributable (x64) - 12.0.40664.0
- Microsoft Visual C++ 2013 Redistributable (x86) - 12.0.40664.0
- Microsoft Visual C++ 2015-2019 Redistributable (x64) - 14.26.28720.3
- Microsoft Visual C++ 2015-2019 Redistributable (x86) - 14.26.28720.3
- Microsoft Visual Studio Code 1.45.1
- Monster Train 
- Open-Shell 4.4.142
- Oracle VM VirtualBox 6.1.8
- pdk 1.18.0.0
- PuTTY release (64-bit) 0.73.0.0
- Python Launcher 3.8.7072.0
- python3 3.8.3
- qbittorrent 4.2.5
- Razer Synapse 3.5.0531.051418
- slack 4.6.0
- Steam 2.10.91.91
- SumatraPDF 3.2
- telegram 2.1.6
- VLC media player 3.0.10
- WinSCP    5.17.6
- Wireshark 64-bit 3.2.4
- World of Warcraft 

Not sure if this is an actual bug or if this is some weird software -> hardware interaction, but it doesn't appear to happen with any other piece of software. However, I will note I am running on a laptop docked with an external graphics card (5700XT).

Steps to reproduce

Run windows terminal (happens on opening with default settings)

Expected behavior

No weird vertical scan lines all over my desktop (requires restart to remove)

Actual behavior

Weird vertical scan lines.

Before Opening Terminal Opening Windows Terminal

(sorry about poor camera skills, it's something that can't be screenshot).

[skyline75489]

Have you tried using software rendering described here?

[zadjii-msft]

Well that's certainly odd. Maybe the software rendering might help?

[ghost]

This issue has been automatically marked as stale because it has been marked as requiring author feedback but has not had any activity for 4 days. It will be closed if no further activity occurs within 3 days of this comment.