Comment # 2 on bug 1225544 from Richard Brown

I'm tempted to put this down to a kernel/firmware bug with the X1 Carbon

on my Dell 5510 I'm able to recreate the following scenario.

Boot with AC plugged in
- Tik starts
- Remove AC power
- Click OK on Welcome Screen
- AC Power Adapter warning appears
- Plug in AC power
- Click Ok on AC Power Required screen
- Installation continues

So this categorically suggests that the tik code is present, correct, and
accurate

HOWEVER, I'm also able to find an unrelated fun bug on the same Dell 5510

Boot with AC disconnected
- tik starts
- Click OK on Welcome Screen
- Install continues

Because the AC wasn't connected on boot the kernel/firmware never established
the device nodes we use to calculate if the AC adapter is plugged in..nor does
it get restablished when it's plugged in later

So..yeah.. today I learned AC power status in the kernel is weird and buggy.. I
like the fact tik at least TRIES to warn users.. but I don't think we can
really improve much here if the info we're getting from the hardware is
bonkers.

Any objection to me closing this as WONTFIX?