>From what I've understood:
- pbbuttonsd is configured to turn off LCD backlight by default (LCD_Brightness is commented out in /etc/pbbuttonsd.cnf).
- pbbuttonsd hangs on startup - but as it attempted to start, it has already turned off backlight.
So the proposed fix:
- uncomment LCD_Brightness=90 in /etc/pbbuttonsd.cnf : this means LCD backlight will be at 90% on startup. (to prevent getting a dark screen on startup).
- set pbbuttonsd to start after lightdm by modifying /etc/init.d/pbbuttonsd and adding "lightdm" to the end of the "Required-Start:". I have tried to put $ALL but that did not work. (why?)
Note that I have also found an issue (and a solution) with pbbuttonsd (Script '/etc/power/pmcs-pbbuttonsd powersave ac ' lauched but exitcode is not null).
I'll try to report my first bug EVER in bugs.debian.org !!!
A final question: should I update the wiki anyway ? Or now that the issue is going to be fixed, we do not need to do it?
En date de : Lun 22.5.17, Mathieu Malaterre <[hidden email]> a écrit :
Objet: Re: sid - PowerBook G4 1.5 Al (radeon) - No Backlight on fourth boot - pbbuttonsd/hdparm
À: "John Paul Adrian Glaubitz" <[hidden email]>
Cc: "Fadi Osman" <[hidden email]>, "PowerPC List Debian" <[hidden email]>
Date: Lundi 22 mai 2017, 20h15
On Mon, May 22, 2017 at 11:08 AM, John Paul
> On Sun, May 21, 2017 at
07:12:00AM +0000, Fadi Osman wrote:
So I started up in nomodeset - and using the Console,
>> pbbuttonsd and hdparm,
and now have my Backlight back again!
> Thanks for
investigating this and thanks for this information.
> Might be a good idea
to put it up in the wiki here:
>> https://wiki.debian.org/PowerPC/FAQ >
>> I have kept the
contents of /var/log for each of my boot attempt -
>> but not the fourth unfortunately. A
first attempt to compare them was
not very helpful.
>> I might try to reinstall pbbuttonsd
and prepare a script to copy the
/var/log with the backlight off.
> Yes, please. Once you have gained enough
information, please file a
> bug report
against the pbuttonsd package so the maintainer is
> notified, although I haven't checked
whether the package is still
but I am ok to integrate users patch if needed.