Should a laptop be switched off when not in use?
My laptop is two and a half years old. It's just started having an intermittent problem with rainbow stripes appearing on screen. They go away when I change the screen angle. My husband now says (after two and a half years) I should be switching it off when not in use, rather than let it go into hibernation mode. Is that right? I didn't think leaving it on was a problem. Note, it is switched off overnight.
Absolutely. Laptops overheat, can cause fires. I read a story where a man had gone to take a nap, while visiting family. He left the laptop on the bed which caught fire. His parents lost their home, and he lost his life.
During the day/evening while awake, if I want to take a break, I will shut mine down in hibernate mode. That way when I sign on, my sites that were open, are still open.
When I am done, I log completely off, shut down and unplug. Power surges can kill laptops to even when off if they are still plugged into and outlet.
Sounds like you have a problem with the laptop, not because it has been left on though. Most likely it is an issue with a faulty batch of laptops that used cheap solder to attach the graphics chips. What happens is they get hot one day, not from being left on but from running an intensive program, or maybe having inadequate ventilation, like having it on the bed or your lap. Then the solder melts and the connection is no longer solid. My laptop has been running almost non stop for the last 18 months, it hardly ever gets a break and it's fine. Mine lives on a flat desk though so always has perfect ventilation.
I think from time to time, your laptop needs a restart. From my experience, it is recomended a restart from time to time. Also, from my experience from hybernation the computers can have very strange behaviors, with no explanation, so re-start again recomended.
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