How to reset screen resolution on Qubes OS 4.1.1 by editing kernel boot parameters?

[deeplow]

Follow-up discussion moved to thread:

Black Screen after Login. Need to reset screen resolution

System: Acer Nitro 5 The QOS411 recommended auto screen resolution for my laptop: 1920x1080 @144Hz Since the font size was very small even after setting dpi from general settings, I tried resetting screen resolution through settings>Display>Res: to 1600:900. This resulted in a black screen for a few seconds followed by resolution resetting to 1920x1080 without any message, reason, or option. To force the resolution, I set it to 1600x900, and clicked ENTER, assuming that there is a message beh…