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X230 suspend #608

@kmeaw

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@kmeaw

I am having issue with Thinkpad X230 suspend when OS is booted using Heads.

When I try to suspend my laptop, running Linux 5.2.11-arch1-1-ARCH, it disables the backlight (as usual), but instead of suspending after a second enables the backlight again, delays for a few seconds, and then disables the backlight and finally suspends.

On resume the backlight does not enable immediately — I see a delay of a few seconds, then the backlight enables and I see the VT screen, but the CPU fan is running at 100% and the system is immensely slow ­— echoing a single character typed on a keyboard takes about a minute.

No such problem occurs on a vanilla coreboot 563b869 with SeaBIOS and Intel VBT.

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