Comment 33 for bug 1822394

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Mario Limonciello (superm1) wrote : Re: [Dell BIOSes dated 27 Mar 2019] laptop keyboard & touchpad not working at gdm screen after boot

That's interesting to me. Yes the EC will emulate an PS2 mouse until the OS brings up the I2C controller. I would think you can accomplish a similar result by blacklisting psmouse potentially.

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