Slow LAN on battery: ASPM fails for Realtek RTL8111/8168B Gigabit Ethernet controller [10ec:8168] (rev 02)

[Martin Kammerlander]

Binary package hint: gnome-power-manager

Hi.

Since a few weeks i noticed that when my notebook runs on batteries the LAN network (the lan network card) becomes very slow. However the wireless card seems not to be affected and runs just as fast in battery mode as when I plug the notebook in.

I think this is happened right after upgrading to 10.10, but i can't tell 100% for sure.

It seems related to this bug here: https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/657508

My notebook is an Acer Travemate TM8371 944G32n

Here you find some additional infos:

http://pastie.org/1288593

if you need furhter information, please let me know.

best
martin

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: gnome-power-manager 2.32.0-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-22.35-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic x86_64
Architecture: amd64
Date: Thu Nov 11 00:56:40 2010
EcryptfsInUse: Yes
GnomeSessionIdleInhibited: No
GnomeSessionInhibitors: None
GnomeSessionSuspendInhibited: No
MachineType: Acer TravelMate 8371
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=4d720e59-17da-4c5d-aade-25abf3c44abd ro noplymouth
ProcEnviron:
 LANG=de_AT.utf8
 SHELL=/bin/bash
SourcePackage: gnome-power-manager
dmi.bios.date: 08/11/2010
dmi.bios.vendor: Acer
dmi.bios.version: V1.28
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: TravelMate 8371
dmi.board.vendor: Acer
dmi.board.version: PSMBOU-1234567
dmi.chassis.asset.tag: None
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: None
dmi.modalias: dmi:bvnAcer:bvrV1.28:bd08/11/2010:svnAcer:pnTravelMate8371:pvrV1.28:rvnAcer:rnTravelMate8371:rvrPSMBOU-1234567:cvnAcer:ct10:cvrNone:
dmi.product.name: TravelMate 8371
dmi.product.version: V1.28
dmi.sys.vendor: Acer

[Roger Krishnana (roger-krish)]

If you want it to run fast, just open the terminal and type
sudo service acpid stop
sudo service acpi-support stop

But then you are responsible for your own power management. But I agree that Ubuntu should have handled it better because its really slow

[Martin Kammerlander (martin-kammerlander)]

Hi Roger,

I tried

sudo service acpi-support stop

And voila I have my speed back. I can even start it again in battery mode and the speed is still good. So it seems that a stop of acpi-support solves the issue and a new start doesn't harm the speed anymore.

[Wolfgang Kufner (wolfgangkufner)]

Could be the PCI Express powersaving (ASPM).
You could try switching it off with:
sudo touch /etc/pm/power.d/pcie_aspm
(see man pm-powersave)

[dazza5000 (darran-kelinske)]

I had this issue previously. However, I have updated to the latest packages and an actual time estimate is given when the battery is discharging.

Martin,

If possible, can you update to the latest packages and verify if this is still an issue?

[Martin Kammerlander (martin-kammerlander)]

Hi Wolfgang,

Sorry for the late reply. You solution works for me, I tested it quite a while ago, but I forgot to write an answer here.

drizzle, in the next days i will update to the latest packages, and report you back then,

thx guys
martin

[Wolfgang Kufner (wolfgangkufner)]

Hi Martin,

thanks for the feedback.

[Pedro Villavicencio (pedro)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. The issue that you reported is one that should be reproducible with the live environment of the Desktop CD of the stable release - Oneiric Ocelot. It would help us greatly if you could test with it so we can work on getting it fixed. You can find out more about it at http://www.ubuntu.com/download . Thanks again and we appreciate your help.

[Launchpad Janitor (janitor)]

[Expired for gnome-power-manager (Ubuntu) because there has been no activity for 60 days.]