Tecra W50-A-114 - blinking display - brightness go up and down

Good day,
+First of all sorry for my english.+
I have issues with display on my tecra w50-a-114. *Display sometimes (ca in 5min. period) blink (brightness go on 100% and then back to the current settings).*
I dont know whats happened. I am not aware that I changed some settings. I check all power management settings, but every setting is in my opinion alright.
Have any of you Idea what's happened?
_Thank for all suggestions._

Hi
I guess the display brightness level changes no matter if the notebook is connected to the AC adaptor or battery mode? Is this correct?
Usually the function keys FN + F7 and FN + F8 increases and decreases the computers brightness.
But I dont think that theses function could be related to your issue.
To me it sounds a little bit like display panel hardware problem but this is only my personal opinion

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Tecra W50-A-114 - blinking display - brightness go up and down

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