Laptop screen very dim after sleep mode
Matt -
Hello,
I have a Medion Crawler E40 laptop that I've had for a few months, and it has recently developed a small problem. When it goes to sleep (either by closing the laptop or leaving it to sleep after a few minutes), the screen becomes extremely dark when I wake it up; I can barely see the time in the middle of the screen. I can enter my password and get to the desktop, but it doesn't change anything.
I thought it might be related to the closed screen sensor, but the fact that it also happens when it goes to sleep on its own leaves me puzzled.
I have updated my Windows, BIOS, and graphic drivers as well.
Do you have any ideas about the origin of the problem?
Thank you in advance,
5 réponses
Hello,
You have keys on laptops to adjust the brightness, which are usually located on the keys with F + 1 number at the top of the keyboard. The brightness key is typically represented by a small sun. To adjust it, simply press the Fn key at the bottom of the keyboard + the key corresponding to increasing the brightness. Let me know if this already fixes your dark screen.
As for sleep mode, you can adjust it in the control panel under power options: Control Panel\Hardware and Sound\Power Options\Change plan settings and then disable sleep mode.
Best regards.
Can you also check if the battery saver option is enabled? See if disabling the option resolves the issue.
Hmm I'm running out of ideas, could you please check if your Windows is properly updated as well as your graphics card?
The only setting I think that could still interfere with the brightness would be fast startup:
Through Settings > System > Power & sleep > Additional power settings > Choose what the power buttons do
Click on Change settings that are currently unavailable.
Uncheck the Enable fast startup box.
If it doesn't work, make sure to re-enable it afterwards.
Hello, I think this is a problem that comes from the PC model. I also have a Medion Erazer E10 and I have the same issue.
Thank you for your response.
However, my brightness is already set to maximum. That's the first thing I tried.
Next, disabling sleep mode wouldn't solve the problem because when I want to transport it without turning it off, I want it to be in sleep mode. And even if I disable automatic sleep, I think it will still go to sleep when I close it.
I don't think the problem comes from the system because when the screen was very dark, I managed to take a screenshot. Once I restarted my PC, I looked at the screenshot and it was normal, the brightness was good. So I think it comes from the hardware, but I don't really understand which element is defective.
Just to make sure, is the screen always dark or only after waking from sleep? Check if there might be an adaptive brightness setting enabled? https://support.microsoft.com/en-us/windows/adaptive-brightness-control-of-content-in-windows-292d1f7f-9e02-4b37-a9c8-dab3e1727e78
The screen is dark only after the sleep restart. But extremely dark, meaning that at first I thought the screen wasn't turning on, and it was only by looking closely that I saw it was on but almost black.
And no adaptive brightness is enabled.
The last thing I would see is to do a quick scan of the system files using the command prompt: search for the command prompt => right-click to run it as administrator and type the command SFC /scannow.
It didn't work out :'(