Dear GRUB folks,
On a Lenovo T60 with coreboot and the GRUB payload, version 2.02-rc1, entering `halt` in the GRUB command line, nothing happens. The cursor goes one line below, and everything stays that way. After that, the system can only be powered off by pressing the power button for ten seconds. Setting `debug=all` before that – `debug=halt` didn’t work – the last lines are below. ``` […] commands/acpihalt.c:107: data type = 0x12 commands/acpihalt.c:241: Opcode 0x8 commands/acpihalt.c:242: Tell 2dbd commands/acpihalt.c:107: data type = 0x12 commands/acpihalt.c:241: Opcode 0x8 commands/acpihalt.c:242: Tell 2dcd commands/acpihalt.c:269: S5 found commands/acpihalt.c:444: SLP_TYP = 7, port = 0x504 ``` I would have expected at least the monitor to go dark, and maybe also the system to power off as there is no specific command `poweroff` [1]. > The command halts the computer. If the --no-apm option is specified, > no APM BIOS call is performed. Otherwise, the computer is shut down > using APM. I heard, that SysV implemented `halt` “incorrectly”, so that it also powered off the system. Only `halt -p` or `poweroff` was supposed to that. so I don’t know, how GRUB’s implementation of `halt` is supposed to work. Kind regards, Paul [1] https://www.gnu.org/software/grub/manual/html_node/halt.html#halt
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