S201HL stuck at 640x480 resolution

HelpAsNeeded
HelpAsNeeded Member Posts: 3 New User

S201HL ran fine on HP Pavilion P6-2133w, AMD A6 3620, Windows 10, until motherboard and processor failed.

 

Replaced with identical motherboard (though unexpectedly HP now identifies system as P7-1154) and AMD A6 3650.

 

Display is fine when connected to another monitor.

 

Using S201HL, I can't increase resolution -- system sees Generic Non-PNP Monitor.

 

Suggestions appreciated.