F5F Stay Refreshed Hardware Desktop The laptop display suddenly turns off without warning.

The laptop display suddenly turns off without warning.

The laptop display suddenly turns off without warning.

A
ASAAD_3D
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11-02-2016, 01:05 AM
#1
Over the last year or two, my Lenovo Yoga Slim 7 Pro 14ACH5 screen would suddenly turn black. The keyboard backlight stayed on, and turning the power button once made the fans spin loudly, but nothing changed. To fix it, I had to force a restart by holding the power button. After uninstalling and reinstalling both the chipset and GPU drivers (using DDU, the default AMD drivers), the issue still occurred. I haven’t been able to reproduce it consistently. It seems to happen randomly, without any connection to the workload. It usually happens once or twice a month. I’ve looked into the Event Viewer logs, but nothing stands out. The only noticeable error is from the forced restart. Can you help add more debugging details when it happens again? A memory dump isn’t available. Thanks ahead of time.
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ASAAD_3D
11-02-2016, 01:05 AM #1

Over the last year or two, my Lenovo Yoga Slim 7 Pro 14ACH5 screen would suddenly turn black. The keyboard backlight stayed on, and turning the power button once made the fans spin loudly, but nothing changed. To fix it, I had to force a restart by holding the power button. After uninstalling and reinstalling both the chipset and GPU drivers (using DDU, the default AMD drivers), the issue still occurred. I haven’t been able to reproduce it consistently. It seems to happen randomly, without any connection to the workload. It usually happens once or twice a month. I’ve looked into the Event Viewer logs, but nothing stands out. The only noticeable error is from the forced restart. Can you help add more debugging details when it happens again? A memory dump isn’t available. Thanks ahead of time.

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NoNe_1
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11-02-2016, 01:38 AM
#2
I think you first need to find out if this is a software issue (including hardware drivers), or a hardware issue, as there will likely be no event log if the whole system panics, or if a component simply loses power. The best way to find out is to run Linux off a USB stick for a while - if you see the same behaviour, it's hardware. Once a month is not very often though, so I'd get it if you didn't want to. Or, open the laptop to see if there are any suspected loose connections. The easiest alternative is probably to just reinstall or factory restore Windows, but again, I'd understand if you don't want to. Oh - how are your temps?
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NoNe_1
11-02-2016, 01:38 AM #2

I think you first need to find out if this is a software issue (including hardware drivers), or a hardware issue, as there will likely be no event log if the whole system panics, or if a component simply loses power. The best way to find out is to run Linux off a USB stick for a while - if you see the same behaviour, it's hardware. Once a month is not very often though, so I'd get it if you didn't want to. Or, open the laptop to see if there are any suspected loose connections. The easiest alternative is probably to just reinstall or factory restore Windows, but again, I'd understand if you don't want to. Oh - how are your temps?

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alexBV
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11-07-2016, 11:59 AM
#3
It isn't certain the problem will be identified, but you can use HWinfo64 or AIDA64 to generate a log file with your sensor readings. This way, if unusual temperatures, voltages, or other sensor signals occur, you'll be able to review the logs. Good luck!
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alexBV
11-07-2016, 11:59 AM #3

It isn't certain the problem will be identified, but you can use HWinfo64 or AIDA64 to generate a log file with your sensor readings. This way, if unusual temperatures, voltages, or other sensor signals occur, you'll be able to review the logs. Good luck!

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