Force acpi_skip_timer_override for Gigabyte GA-MA78GPM-UD2H
PATCH 1/1 Force acpi_skip_timer_override for Gigabyte GA-MA78GPM-UD2H
Some Gigabyte motherboards from the SB700 generation have an issue where they will not boot or suspend/resume without "acpi_skip_timer_override" on the kernel command line. I have a GA-MA78GPM-UD2H (AM2+ socket) and the below patch allows it to boot successfully by adding it to the quirks list (the AMD bug detection in early_quirks.c isn't enabling acpi_skip_timer_override automatically).
https://lkml.org/lkml/2011/3/31/195 covered a similar issue.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/658955 is a bug report with my system information.
Also posted at https://lkml.org/lkml/2011/11/22/511
Reported-and-tested-by: <angus <at> twinhelix.com>
cc: Len Brown <lenb <at> kernel.org>
arch/x86/kernel/acpi/boot.c +14 -0
@@ -1466,6 +1466,20 @@ static struct dmi_system_id __initdata a DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"), }, }, +/* +* Buggy Gigabyte ACPI on SB700 boards, will not boot or resume +* reliably without acpi_skip_timer_override (last stable BIOS). +* Affects multiple boards of this generation. +*/ + { + .callback = dmi_ignore_irq0_timer_override, + .ident = "Gigabyte GA-MA78GPM-UD2H", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, + "Gigabyte Technology Co., Ltd."), + DMI_MATCH(DMI_PRODUCT_NAME, "GA-MA78GPM-UD2H"), + }, + }, {} };