everything fine and dandy until i sent in the laptop for warranty LCD screen replacement.
Laptop is 3 years old, Dell XPS 15 3200x1800, 4702HQ i7
Here are the issues and wondering if they're linked
1. noticed on 2 occasions plugging in didn't charge the battery
2. last night the screen came up with spots everywhere when CPU idle.
-when doing something the dots disappear (as simple as moving the cursor with trackpad = no spots)
- when plugged in the dots disappear
- when screen duplicated on external monitor (or extended), spots disappear
Made sure BIOS and GPU drivers (and all other drivers) up to date
I don't think it's the LCD screen ... something else ...
Might try to revert back to pre-anniversary edition to rule out OS
Will try to get a pic later