** Description changed: + Dear all! + I have tested many distros - Arch, OpenSuSe 13.1, Fedora 20, ALT Linux p7, Sabayon, Mageia 4. Many of them are based on systemd. It does not matter what init system they use, but all of them have very usefull script (or binary program, I don't know) for saving and restoring backlight level on laptop. In these distros there is a script for save and restore backlight levels for two video-cards (acpi_video0 and acpi_video1). During system boot it is indicated as follows: " [ OK ] Started Load/Save Screen Backlight Brightness of acpi_video1. [ OK ] Started Load/Save Screen Backlight Brightness of acpi_video0. ". - I have a draft version, which works normally on my VAIO F13Z1R laptop with Ubuntu 12.04.4. It is in attachment. - You can use it unmodified or modify it for compatibility or something. I made symlinks for it: - ln -s /etc/init.d/brightness /etc/rc0.d/S25backlight - ln -s /etc/init.d/brightness /etc/rcS.d/S25backlight - ln -s /etc/init.d/brightness /etc/rc6.d/S25backlight + ========================================= - For details you can read my comment on askubuntu - (http://askubuntu.com/a/227553/66509). + Steps to reproduce: + 1. User boots laptop (cold boot, not wake from suspend) + 2. User sets comfortable backlight level + 3. User ends his/her work by shutting down the laptop (not suspend, so backlight level is not saved) + 4. Go to 1 (another cold boot with reseted backlight level). - I think that having a script for saving and restoring backlight level is very useful for laptop Ubuntu users. - So, please, add such init script to default Ubuntu installation. + ========================================= + + According to the list of duplicates and bug heat this bug/feature + request is very important. + + As you know laptop market share is gigantic (see for example http://www.statista.com/statistics/276772/ultrabook-share-of-global-notebook-market-since-2011/ for stats). + Also Ubuntu and Debian market share are increasing. + + So I can't believe why this usability fault exists in Ubuntu (and Debian) for years. + It seems that guys from `systemd` understand the problem correctly (sooner or later - on 14 Aug 2013, see https://github.com/systemd/systemd/commits/56f64d95763a799ba4475daf44d8e9f72a1bd474/src/backlight/backlight.c ), but `upstart` and `sysvinit` developers not. + + As you can remember I tried to fix the problem by myself (see my comment on askubuntu http://askubuntu.com/questions/151651/brightness-is-reset-to-maximum-on-every-restart/227553#227553) - I created first version of an init script for saving and restoring backlight level (on 10 Dec 2012 - two years ago). + It had one disadvantage - it operates only when laptop has one graphical adaptor and its name was hardcoded to the script (*acpi_video0* in my case). + + So today I present new version of a script - it can save and restore backlight levels of all graphical, adaptors, which are found in `/sys/class/backlight/*`. + The init script with symlink are packed to archive (see attachment to comment #18 - https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/1270579/+attachment/4288756/+files/upstart_brightness.tar.gz ). + The script is tested on Ubuntu Precise 12.04.5 and Ubuntu Trusty 14.04.1. + + + Please note: if you have installed its previous version (see comment #15) - you can remove its files with commands: + sudo rm /etc/rc?.d/?25backlight /etc/init.d/brightness + then extract new version with commands: + sudo tar -zxvf upstart_brightness.tar.gz -C / + + + I hope my script will help somebody. + Thanks for testing! + + ========================================= ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: initscripts 2.88dsf-41ubuntu5 ProcVersionSignature: Ubuntu 3.13.0-4.19-generic 3.13.0-rc8 Uname: Linux 3.13.0-4-generic i686 ApportVersion: 2.13.1-0ubuntu1 Architecture: i386 CurrentDesktop: GNOME Date: Sun Jan 19 17:20:26 2014 InstallationDate: Installed on 2013-10-20 (91 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release i386 (20131016.1) SourcePackage: sysvinit UpgradeStatus: Upgraded to trusty on 2013-11-19 (61 days ago)
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to sysvinit in Ubuntu. https://bugs.launchpad.net/bugs/1270579 Title: Ubuntu should have an upstart job for saving/restoring backlight level on laptops Status in elementary OS: Confirmed Status in One Hundred Papercuts: Confirmed Status in The Linux Mint Distribution: New Status in Ubuntu MATE: Opinion Status in systemd package in Ubuntu: Triaged Status in sysvinit package in Ubuntu: Confirmed Status in upstart package in Ubuntu: New Status in sysvinit package in Debian: New Bug description: Dear all! I have tested many distros - Arch, OpenSuSe 13.1, Fedora 20, ALT Linux p7, Sabayon, Mageia 4. Many of them are based on systemd. It does not matter what init system they use, but all of them have very usefull script (or binary program, I don't know) for saving and restoring backlight level on laptop. In these distros there is a script for save and restore backlight levels for two video-cards (acpi_video0 and acpi_video1). During system boot it is indicated as follows: " [ OK ] Started Load/Save Screen Backlight Brightness of acpi_video1. [ OK ] Started Load/Save Screen Backlight Brightness of acpi_video0. ". ========================================= Steps to reproduce: 1. User boots laptop (cold boot, not wake from suspend) 2. User sets comfortable backlight level 3. User ends his/her work by shutting down the laptop (not suspend, so backlight level is not saved) 4. Go to 1 (another cold boot with reseted backlight level). ========================================= According to the list of duplicates and bug heat this bug/feature request is very important. As you know laptop market share is gigantic (see for example http://www.statista.com/statistics/276772/ultrabook-share-of-global-notebook-market-since-2011/ for stats). Also Ubuntu and Debian market share are increasing. So I can't believe why this usability fault exists in Ubuntu (and Debian) for years. It seems that guys from `systemd` understand the problem correctly (sooner or later - on 14 Aug 2013, see https://github.com/systemd/systemd/commits/56f64d95763a799ba4475daf44d8e9f72a1bd474/src/backlight/backlight.c ), but `upstart` and `sysvinit` developers not. As you can remember I tried to fix the problem by myself (see my comment on askubuntu http://askubuntu.com/questions/151651/brightness-is-reset-to-maximum-on-every-restart/227553#227553) - I created first version of an init script for saving and restoring backlight level (on 10 Dec 2012 - two years ago). It had one disadvantage - it operates only when laptop has one graphical adaptor and its name was hardcoded to the script (*acpi_video0* in my case). So on 2014-12-28 I presented new version of a script - it can save and restore backlight levels of all graphical, adaptors, which are found in `/sys/class/backlight/*`. The init script with symlink aPlease note: ire packed to archive (see attachment to comment #18 - https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/1270579/+attachment/4288756/+files/upstart_brightness.tar.gz ). The script is tested on Ubuntu Precise 12.04.5 and Ubuntu Trusty 14.04.1. If you have installed its previous version (from comment #15) - you can remove its files with commands: sudo rm /etc/rc?.d/?25backlight /etc/init.d/brightness then extract new version with commands: sudo tar -zxvf upstart_brightness.tar.gz -C / I hope my script will help somebody. Thanks for testing! To Ubuntu developers: please contact me if you are ready to include and distribute my script to 12.04 and 14.04 deb-pakages. ========================================= ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: initscripts 2.88dsf-41ubuntu5 ProcVersionSignature: Ubuntu 3.13.0-4.19-generic 3.13.0-rc8 Uname: Linux 3.13.0-4-generic i686 ApportVersion: 2.13.1-0ubuntu1 Architecture: i386 CurrentDesktop: GNOME Date: Sun Jan 19 17:20:26 2014 InstallationDate: Installed on 2013-10-20 (91 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release i386 (20131016.1) SourcePackage: sysvinit UpgradeStatus: Upgraded to trusty on 2013-11-19 (61 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/elementaryos/+bug/1270579/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
