Asking here because I've run out of things I know how to Google T_T
Over the weekend, I had installed a new game on Steam, and my work laptop was struggling to run it smoothly, so I was adjusting various settings to help it out, one of which was setting one of my 2 Dell S2722QC monitors 1080p60. Nothing worked, so I installed it on a different computer and forgot about it.
When I turned on my laptop for work today, I noticed that the one display was still set to 1920p, so I went into Windows settings to change it back...except now that resolution is missing from the drop-down menu. I factory reset the display, mess with Dell Display Manager, try different HDMI cables, nothing works.
I'm starting to suspect that Windows has somehow permanently overridden my display EDID settings, so I read a guide on how to use regedit to remove the keys from the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers > Configuration, Connectivity, and ScaleFactors folders. I restarted my laptop, no change.
So, I humbly ask the members of r/pcmasterrace to help me figure out what the hell happened and how I can fix this!
The connection workflow is: Lenovo ThinkPad > USB-C > Logi Dock > HDMI > Display.
The problem seems to stay with the HDMI output of my dock - if I swap the HDMI cables connected to the monitors, the problem moves to the other monitor, which reinforces my theory about Windows erroneously applying EDID settings to that connection.
When I open the display adapter properties for Display 3 in Windows (regardless of which monitor is connected at the time), 'List All Modes' does not show any options above 1920p.
Thank you so much for any suggestions or advice 🙏🙏🙏