Package: laptop-mode-tools
Version: 1.60-1
Severity: normal
--- Please enter the report below this line. ---
By default, /etc/laptop-mode/conf.d/usb-autosuspend.conf enables laptop-mode-
tools to turn the power off for many (all?) usb devices after three seconds of
non-use when AC is unplugged. This behavior is unwelcome and causes problems
the first time it happens.
I do not have a single USB device that I want powered down while actively
using my computer, even in power saving mode. My wired USB mouse, my bluetooth
radio that I use to connect to my car's computer, various cameras, my laptop
cooler, and my various usb mass storage devices all become annoying to use
when the USB power is shut off after only a few seconds. If I am not using
them, I typically will unplug them from the USB port just because I cannot
have everything plugged simultaneously into my laptop.
The fix for this bug is easy. It involves either disabling usb-autosuspend (set
CONTROL_USB_AUTOSUSPEND="0" in /etc/laptop-mode/conf.d/usb-autosuspend.conf).
Alternatively, you can set AUTOSUSPEND_USE_WHITELIST=1 and then whitelist the
usb devices that you can be autosuspended with AUTOSUSPEND_USBID_WHITELIST=""
and AUTOSUSPEND_USBTYPE_WHITELIST="" in the same file as above. You can use
lsusb when the device is plugged in to determine its type and/or USB ID. I
consider either of these solutions preferrable to blacklisting because most
USB devices are designed to be used while they are plugged in and many of them
have their own power-down routines and stop drawing power when they're not
being used.
--- System information. ---
Architecture: amd64
Kernel: Linux 3.2.0-2-amd64
Debian Release: wheezy/sid
500 testing www.debian-multimedia.org
500 testing security.debian.org
500 testing ftp.us.debian.org
--- Package information. ---
Depends (Version) | Installed
==========================-+-============
lsb-base (>= 3.0-10) | 4.1+Debian0
util-linux (>= 2.13) | 2.20.1-4
psmisc | 22.16-1
Recommends (Version) | Installed
=============================-+-===========
hdparm | 9.39-1
sdparm |
ethtool | 1:3.1-1
net-tools | 1.60-24.1
wireless-tools | 30~pre9-8
udev | 175-3.1
Suggests (Version) | Installed
=========================-+-===========
acpid | 1:2.0.16-1
OR apmd | 3.2.2-14
OR pbbuttonsd |
OR pmud |
hal |
--
BH
~~~~~~~~~~~~~~~~~~~~
Randomly selected fortune cookie:
Where do I find the time for not reading so many books?
-- Karl Kraus
~~~~~~~~~~~~~~~~~~~~
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