Re: XPS 13 brightness has completely stopped working

So here's what fixed brightness adjust for me. I went into Device Manager and uninstalled graphic driver and selected to delete driver from PC. Then I restarted PC and let Windows update install driver 25.20.100.6323. This has fixed brightness control. I also uninstalled Dell Update app because I am concerned it will install the bad driver again. Both Dell drivers are older and I don't think they work with Win 10 1809. 

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