Most possibly is from condensation of water from the air. Do you live in a high humidity country? Do you use air conditioning and bring periodically room temps low? I guess is something related to that and high humid air is entraped between screen and keyboard, but for this to built up in water, room temp has to go down drastically. If it is something like this try to open windows in the room so fresh air balance the air inside.
If you keep your screen open I guess you will not notice it again in such extreme . But if it is humidity of the air (basement?), you have to find a permanent solution not only for devices but for yourself too. Do you have big up and downs of temperature there?
gravehopper wrote:That explains a lot. I thing weird weather conditions is to blame for that. If you have the same conditions again it's good to have a cheap fan in the room just to move the air and not standing still. Also keep screen open for not having trapped air inside. The last goes for anything you have closed, like drawers or capboards. Leave them slightly open 🙂
I live in vancouver and I live on the third floor of a house. Though it has been kind of humid the past few weeks.alternating rain and sun but I had my window open because it was so hot sometimes
If you use hair dryer do not approach the dryer very close to the laptop. Very high temperatures will destroy sensitive plastic components, such keys from keyboard. Trust me I already have destroyed a a laptop keyboard like this. Blow hot air from a distance please 🙂
