gdt: Kangaroo road sign (Default)
Glen Turner ([personal profile] gdt) wrote2018-07-29 10:54 pm
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MacbookPro8,2 boots with very bright screen

The screen brightness is held in a EFI variable.

hexdump /sys/firmware/efi/efivars/backlight-level-7c436110-ab2a-4bbb-a880-fe41995c9f82 
0000000 0007 0000 0101