Bug#421779: linux-source-2.6.18: Poweroff doesn't work on Sony VAIO S4M

[Moritz Muehlenhoff <jmm@inutil.org>]

On Tue, May 01, 2007 at 02:28:28PM +0200, Marcello Maggioni wrote:
> Package: linux-source-2.6.18
> Version: 2.6.18.dfsg.1-12
> Severity: normal
> 
> 
> I've tried recompiling the kernel , playing with ACPI options (kernel 
> configurations and acpi= parameters) , but POWEROFF doesn't work.
> 
> When I do "shutdown -h now" the system starts powering off and then 
> stops with the line :
> 
> acpi_power_off called
> 
> I've also tried the lastest mainline vanilla kernel 2.6.21.1 and I've 
> got the same problem.
> 
> I've also tried powering off by APM and what I've got is a black screen 
> after shutdown -h now finish to umounting the filesystems , but the 
> system remains on (Fan spinning and the screen is black , but the LCD 
> backlight is still on).
> 
> I will attach my dmesg in the next message .

Does this error still occur with more recent kernel versions?

If you're running Etch, could you try to reproduce this bug
with the 2.6.24 based kernel added in 4.0r4?
http://packages.qa.debian.org/l/linux-2.6.24.html

Cheers,
        Moritz