Monitor turns on for a brief second them goes black.

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PCHF Member
PCHF Member
Jul 15, 2019
A few weeks ago my monitor got some weird issues. When I boot up my PC, it flashes for a few seconds, and then goes black. When I press the power button on the monitor, it turns on again, and goes black after a while.
I got a new monitor, it works perfectly, and I decided to link the previous one to the PC. When I update things like the way split screen is oriented or switch the main/secondary monitors, it still turns on for a second and then goes black.

Should I just dump it in the trash because there is no hope for it, or should I try to fix it somehow?

The Old monitor is a Samsung SyncMaster 920NW, the new monitor is HP Compaq LA1905wg.

BTW when the main monitor goes into sleep mode, when I move the mouse the Old monitor flashes on, too.


Forum Regular
Support Team
PCHF Member
Oct 8, 2017
Yeppoon, QLD, Australia.
may be the backlight on the old monitor has died.
when you turn it on, and it goes black, try shining a torch into the screen, hopefully on a spot you know there should be text, and if you hold the torch just right, you should be able to see the image - if it's a backlight issue.
Last edited by a moderator:


Autonomous Admin
Support Team
Sep 9, 2016
Thread closed due to lack of any feedback from the OP.
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