[vdr] my PC wakes up one hour late

[cedric.dewijs at telfort.nl]

Hi All,

My PC wakes up one hour too late. In everything.log I see the PC wants to
wake up 03:15, but wakes up 4:15 instead.

"
Nov  2 00:37:03 TV vdr-shutdown: executing /usr/share/vdr/shutdown-hooks/S90.acpiwakeup
Nov  2 00:37:03 TV vdr-addon-acpiwakeup: Setting ACPI alarm time to: 2012-11-02
03:15:00
..
Nov  2 04:15:40 TV kernel: [    0.000000] Initializing cgroup subsys cpuset
"
$ cat /proc/driver/rtc
rtc_time	: 18:26:10
rtc_date	: 2012-11-02
alrm_time	: 03:15:00
alrm_date	: 2012-11-03
alarm_IRQ	: no
alrm_pending	: no
update IRQ enabled	: no
periodic IRQ enabled	: no
periodic IRQ frequency	: 1024
max user IRQ frequency	: 64
24hr		: yes
periodic_IRQ	: no
update_IRQ	: no
HPET_emulated	: no
BCD		: yes
DST_enable	: no
periodic_freq	: 1024
batt_status	: okay

$ date
Fri Nov  2 18:26:34 CET 2012

$ uname -a
Linux TV 3.6.2-1-ARCH #1 SMP PREEMPT Fri Oct 12 23:58:58 CEST 2012 x86_64
GNU/Linux

The following does not wake up my PC within 5 minutes:
# echo 0 > /sys/class/rtc/rtc0/wakealarm
# echo `date '+%s' -d '+ 5 minutes'` > /sys/class/rtc/rtc0/wakealarm
# cat /proc/driver/rtc
rtc_time	: 18:31:01
rtc_date	: 2012-11-02
alrm_time	: 18:35:34
alrm_date	: 2012-11-02
alarm_IRQ	: no
alrm_pending	: no
update IRQ enabled	: no
periodic IRQ enabled	: no
periodic IRQ frequency	: 1024
max user IRQ frequency	: 64
24hr		: yes
periodic_IRQ	: no
update_IRQ	: no
HPET_emulated	: no
BCD		: yes
DST_enable	: no
periodic_freq	: 1024
batt_status	: okay