Comment 24 for bug 1822394

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Phusho (phusho) wrote : Re: [Dell BIOSes dated 27 Mar 2019] laptop keyboard & touchpad not working at gdm screen after boot

There is symptom that if you wait for 30 seconds, input devices will start to work again, without flipping hinge. Also closing lid to sleep laptop and wake it again will work also. System engineer from Dell reported that default kenrel 4.15 will not have this problem, every other higher version will have it, including latest main stream version.