<div dir="ltr">Looking closer at /usr/bin/lxsession-default I found something else wrong with the file is that before the ;; in the list of options for all different parts of lxsession-default is on a new line instead of being at the end of the previous command if you want the ;; on a new line for style reasons then a \ in front of it will make it be equivlent to being on the same line. Doing this and saving the file back in /usr/bin/lxsession-default seems to get alt printscreen keybinding working and several of the other lxsession-default commands to work which were not working before. </div> <div class="gmail_extra"> <div class="gmail_quote">On Tue, Apr 15, 2014 at 2:44 PM, <<a href="mailto:farinet@arcor.de" target="_blank">farinet@arcor.de</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> I don't know if it's correct to ask here my questions. If not, sorry in advance ... Anyway, i'm encountering several problems with the predefined shortcuts in the - default! - ~/.config/openbox/lubuntu-rc.xml shortcuts (lubuntu 13.10): 1. <CTRL><F10> and <CTRL><F11> do not work (xbacklight is missing). My question is: Why xbacklight is not installed by default if this commands presume its presence? I installed it, dimming and increasing now works but there seem to be a problem with 'xbacklight -inc 20'. At maximum brightness the screen becomes dead (that's not a lubuntu problem, sure ;) ). 2. The screenshot related command <PRINT> has no effect. I looked into it and executed the command 'lxsession-default screenshot' from the commandline. There, i'm getting the error msg: /usr/bin/lxsession-default: 53: [: missing ] /usr/bin/lxsession-default: 57: [: missing ] I looked into that file and line 53 says: elif [ "$1" = "screenshot" && "$2" = "window"] And line 57: elif [ "$1" = "screenshot"] Now, im not into scripting but i presume many out here are. I checked if scrot is installed and it is. So, what could miss there? 3. Sound control (XF86Mute, XF86RaiseVolume, XF86LOwerVolume) do not work at all. Executing the XF86Mute related command, i got this: ~$ amixer set Master toggle amixer: Unable to find simple control 'Master',0 Then i tried: ~$ amixer scontrols Simple mixer control 'IEC958',0 And therefore i tried to substitute 'Master' by 'IEC958': ~$ amixer set IEC958 toggle Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] [Effectively, in the terminal the command toggles between [on] and [off], but that did not have any effect on the sound output of the machine. But,may be there is a problem with/between alsa and pulse. Unfortunately pulse audio has a lot of dependencies so trying to uninstall it uninstalls a lot of useful (and necessary) programs like Blueman for instance too. Thanks a lot in advance for your patience. -- Lubuntu-users mailing list <a href="mailto:Lubuntu-users@lists.ubuntu.com">Lubuntu-users@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/lubuntu-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/lubuntu-users</a> </blockquote></div> </div>