Compaq 6000 computer keeps changing the resolution of one of the monitors in a dual monitor setup from 1920×1080 to 800×600 without me doing anything.
A very extreme fix:
Edit the Registry (take a backup before you start) to set the monitor to default to the resolution you want.
- Type “regedit” and Enter
- Hit CTRL+F on your keyboard and type in “DefaultSettings.XResolution” and hit Find
- Change that value to the desired X. In my case it was 780 (1920 resolution)
- Then change the “DefaultSettings.YResolution” to your desired Y. In my case it was 438 (1080 resolution)
- Hint: You can change the key to decimal, type in the value you want, then change to Hex and then save.