Try going to display settings > Advanced Display Settings > Display Adapter Properties > Monitor Tab > Select lower Hertz value and apply....Restart machine, hope it resolves the issue
Alright, so this started happening about a year ago and it's driving me insane. Most of the time when my computer is coming out of sleep mode or being powered up, the screen just won't light up. When connected to a monitor, the monitor works and is detected as the PC screen. However, if I just keep turning the computer off and back on, the screen will eventually start working again. Everytime it turns on I get the notification error "Communication error, tray won't start," or something to that effect. Also, for whatever reason, when it does come out of sleep mode successfully, it will be in 600x800 resolution. I've gone through and I'm 100% positive every single driver even slightly related to graphics has been updated. I DON'T UNDERSTAND NOTHING MAKES SENSE SOMEONE PLEASE HELP ME OUT OF THIS MADNESS. And also, once the laptop screen is on it will stay on no matter what until it's closed or turned off, so it's not a hardware issue. Or it is... I am very confused.
It is a Toshiba Satellite with a Core i7-5500 processor and 12 GB of ram running Windows 10.
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