Ubuntu
linux-source-2.6.15 package

Power management doesn't work on N340S8 laptop.

Bug #38174 reported by Tomasz Dominikowski
14
Affects Status Importance Assigned to Milestone
acpi-support (Ubuntu)
Fix Released
Medium
Daniel Silverstone
linux-source-2.6.15 (Ubuntu)
Fix Released
Wishlist
Unassigned

Bug Description

Whether acpi is the culprit I don't know.

It worked in Breezy. Now, in fresh, fully dist-upgraded Dapper with default services running, things that don't work:
- battery not detected by HAL (I've checked it in hal-device-manager)
- when I close the lid, screen doesn't blank
- Power button forcefully powers the computer down (instead of shutting the system down first)
- when I shut the system down, it stops at "sending the TERM signal..." and the laptop doesn't power off.
- of course sleep/hibernate doesn't work ( <- never tested these two things in breezy though)

I've fondled around with the new power management (in gconf-editor too) after I discovered these flaws, but to no avail.
It's an old laptop, SiS630S chipset. Celeron 800MHz. 320MB RAM. I can provide more details, logs when requested, because I have no idea what is failing and I'm not experienced in debugging, so if you want a debuglog/log please provide commands to obtain them. Thanks for bothering with this report!

Tomasz Dominikowski (dominikowski)
Changed in acpi:
status: Unconfirmed → Confirmed
Revision history for this message
Matthew Garrett (mjg59) wrote :

Can you please attach the /var/log/dmesg file?

Revision history for this message
Tomasz Dominikowski (dominikowski) wrote :

http://tomasz.nukysrealm.net/dmesg.txt

Btw, the laptop itself is very well catered for. Everything (besides the aforementioned power management) works out of the box (video with DRI, sound, networking, wifi,...).

Revision history for this message
Matthew Garrett (mjg59) wrote :

[4294667.296000] ACPI: BIOS age (1997) fails cutoff (2000), acpi=force is required to enable ACPI

Ok, there's the problem. Your BIOS claims to be from 1997, with the result that Linux will ignore it. Editing /boot/grub/menu.lst and changing the line starting

#kopt

to have acpi=force at the end, and then running

sudo update-grub

should improve things. If you can attach the output of

sudo dmidecode

then there's a chance that we can whitelist your hardware.

Revision history for this message
Tomasz Dominikowski (dominikowski) wrote :

Hmm, putting acpi=force at the end of the # kopt line doesn't change anything. dmesg still says acpi is disabled.

Revision history for this message
Tomasz Dominikowski (dominikowski) wrote :

No wait, my mistake, IT WORKS :D

Here's my dmidecode output, appreciate the help:

http://tomasz.nukysrealm.net/dmidecode.txt

Revision history for this message
Daniel Silverstone (dsilvers) wrote :

Should be reasonably trivial to whitelist this laptop

Changed in acpi:
assignee: nobody → dsilvers
status: Unconfirmed → Confirmed
Revision history for this message
Tomasz Dominikowski (dominikowski) wrote :

So is this being worked on? Just a reminder :)

Revision history for this message
Daniel Silverstone (dsilvers) wrote :

 acpi-support (0.84) dapper; urgency=low
 .
   * Whitelist another laptop (Ubuntu #44781)
     - Hewlett-Packard Pavilion ZV6000
   * Add whitelist for bizarre old laptop (Closes: Ubuntu #38174)

Changed in acpi-support:
status: Confirmed → Fix Released
Paul Sladen (sladen)
Changed in linux-source-2.6.15:
status: Confirmed → Fix Released
Revision history for this message
Tomasz Dominikowski (dominikowski) wrote :

This is broken since Feisty.

https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/92806

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