Hi, It took me some time - but I think I found the issue, and I have a proposition to solve it.
It seems the issue is linked to https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=795498 (pbbuttons hangs on startup). >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?) I have added these comments to the bug report in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=795498 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? Thanks, Fadi. -------------------------------------------- En date de : Lun 22.5.17, Mathieu Malaterre <[email protected]> a écrit : Objet: Re: sid - PowerBook G4 1.5 Al (radeon) - No Backlight on fourth boot - pbbuttonsd/hdparm À: "John Paul Adrian Glaubitz" <[email protected]> Cc: "Fadi Osman" <[email protected]>, "PowerPC List Debian" <[email protected]> Date: Lundi 22 mai 2017, 20h15 Hi, On Mon, May 22, 2017 at 11:08 AM, John Paul Adrian Glaubitz <[email protected]> wrote: > On Sun, May 21, 2017 at 07:12:00AM +0000, Fadi Osman wrote: >> So I started up in nomodeset - and using the Console, uninstalled >> 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 > maintained. Dead upstream, but I am ok to integrate users patch if needed. -M
