hald-addon-macbook-backlight stops working after resume

Bug #190938 reported by John Dong on 2008-02-11
Affects Status Importance Assigned to Milestone
hal (Ubuntu)

Bug Description

Binary package hint: hal

On my Macbook v3, after a resume on Hardy from suspend, the hald-addon-macbook-backlight subsystem stops listening to keyboard input. I have to restart HAL in order to get it to work again.

This was not the case on Feisty. Let me know what kind of debugging information would be helpful

Sense Egbert Hofstede (sense) wrote :

Thank you for your bug report. However, we need some more information in order to provide the developers with the information they need to fix this bug. Please attach the output of the following commands(after you've returned from resume):
sudo lspci -vvnn > ~/lspci-vvnn
uname -a > ~/uname-a
cat /proc/version_signature > ~/version_signature
lshal > /tmp/lshal.txt

all files are located in your home directory, except for the latest, which is a log file.
Please also include the output of this before you resume:
-Open a Terminal and type
sudo /etc/init.d/hal stop
sudo hald --verbose=yes --daemon=no 2>&1 | tee /tmp/hal.log
-Wait for the output the command generates to settle down
-Go back to the terminal where the sudo hald... comand was executed, press Ctrl+c and execute this:
sudo /etc/init.d/hal start
Now hald is running normally again, it was running in verbose mode earlier.

Please attach the following files:


Changed in hal:
assignee: nobody → qense
status: New → Incomplete
Sense Egbert Hofstede (sense) wrote :

Unfortunately there hasn't been a reply in this bug for more than a month. I close it until someone else has the same bug. Feel free to reopen this bug when you've got more information.
Thanks for reporting anyway.

Changed in hal:
assignee: qense → nobody
status: Incomplete → Invalid
Bastien Jaillot (bastnic) wrote :


I've a first gen macbook. With the last two versions of Ubuntu the backlight control with F1/F2 worked great. I installed a fresh Hardy beta and I never could get it work. When I push on F1 or F2 i see the little "messagebox" as susually but the bar is always empty.

Bastien Jaillot (bastnic) wrote :

uname -a :
Linux bast-laptop 2.6.24-15-generic #1 SMP Fri Apr 4 03:48:31 UTC 2008 i686 GNU/Linux

I also have to say that's this is not related to suspend for me. It's never work.

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