I wrote here, that since my switch to Linux kernel 2.6.32 the ACPI wakeup didn’t work anymore. After a new search through the internet I came across this article mentioning a conflict with the HPET. As a workaround booting with
hpet=disable is suggested.
And indeed with this workaround ACPI wakeup works again. Looking at the output of
rtc_time : 11:44:20 rtc_date : 2010-02-17 alrm_time : 07:21:16 alrm_date : ****-**-17 alarm_IRQ : no alrm_pending : no 24hr : yes periodic_IRQ : no update_IRQ : no HPET_emulated : no DST_enable : no periodic_freq : 1024 batt_status : okay
HPET_emulated line should report
Another fix was released with the
xorg-server 1.7.5. Since the switch to
xorg-server 1.7 I was basically unable to switch from the X11 display running with 1600×1200 resolution to a virtual console. Switching to a virtual console resulted in a dark display complaining about illegal operating parameters. This was particular annoying, when shutting the system down.
As a workaround with earlier
xorg-servers I switched X11 resolution to 1280×1024 with “
Ctrl + Alt + Keypad -” and then switched to a virtual console. Now the virtual console was operable.
The fix for
xorg-server 1.7 was announced in this email. Unfortunately stupid me didn’t think about the
xfce4-display-settings utility (I’m a XFCE4 user), then I would have been able to switch resolutions graphically.