[coreboot] rtc wake up does not work on ASUS M2V-MX SE

Jiang Wang jwangzju at gmail.com
Tue Apr 19 01:43:41 CEST 2011

Hi Stefan,

Do you have any suggestions about the specific name or keywords that I
should look for in the DSDT? I think I can dump the DSDT of the
manufactured BIOS with acpitool and compare it with the one of
coreboot, right? But it is better to have a rough idea before doing
the comparison. Thanks.



On Mon, Apr 18, 2011 at 7:08 PM, Stefan Reinauer
<stefan.reinauer at coreboot.org> wrote:
> * Jiang Wang <jwangzju at gmail.com> [110418 23:38]:
>> Hi,
>> I want to use the rtc wake up function on coreboot and Linux on ASUS
>> M2V MX-SE. I used rtcwake command (ver 2.19)  from
>> ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/ to automatically
>> wake up the machine after an S3 sleep. This works well on manufactured
>> ASUS bios. But with coreboot, it reports an error, "open device
>> /sys/class/rtc/rtc0/device/power/wakeup failed." It seems the command
>> try to find /dev/rtc0 but failed. And I checked that device manually;
>> it does not exist.
> Sounds like some node is missing in the DSDT?

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