Results 1 to 2 of 2

Thread: Openbox-LXDE notification problem: message color unreadable

  1. #1
    Junior Member
    Join Date
    Aug 2011
    Posts
    24

    Openbox-LXDE notification problem: message color unreadable

    Hallo,

    I succeeded to start Knoppix with Openbox-LXDE window manager instead of Metacity. I wanted this because I am not satisfied with Compiz, nor Metacity. Bugs, high resource-usage, they does not support the effective work. But Openbox-LXDE is very fast, highly customizable, lightweight and just works. In one word: it is wonderful!
    How I achieved this:
    First, you have to appply "nocompiz" and "kopik_ncwm" cheatcodes.
    Then edit /etc/X11/Xsession.d/45knoppix file.
    Code:
    # kopik.m: use openbox-lxde instead of metacity with "kopik_ncwm" cheatcode
    kopik_ncwm=metacity
    case "$CMDLINE" in *\ kopik_ncwm*) kopik_ncwm=openbox-lxde;; esac
    for LXDECONFIG in "$HOME/.config/lxsession/LXDE/config" "$HOME/.config/lxsession/LXDE/desktop.conf"; do
     [ -r "$LXDECONFIG" ] || continue
     if [ -n "$COMPIZ" ]; then
      if grep -q -v '^window_manager *= *compiz' "$LXDECONFIG" 2>/dev/null; then
       # CAUTION: lxsession no longer supports commandline optione for window_manager!
       sed -i -e 's|^window_manager *=.*|window_manager=compiz|g' "$LXDECONFIG"
      fi
     else
      if grep -q '^window_manager *= *compiz' "$LXDECONFIG" 2>/dev/null; then 
        sed -i -e 's|^window_manager *= *compiz.*|window_manager='"$kopik_ncwm"'|g' "$LXDECONFIG"
      fi
     fi
    done
    As you can see, one still can use Metacity by not applying "kopik_ncwm" boot option.

    Unfortunately, nothing is perfect: now there is an annoying problem: if Knoppix starts with Openbox-LXDE window manager, the notifications are invisible: maybe with black fonts in a very dark background. So, they are totally unreadable. But if I apply "-t 0" option, the text is still visible.
    Code:
    $ notify-send test -t 0
    The bug is like described in the following page:
    Notification message colour unreadable with "GNOME Classic" session
    So, the problem is related somehow to the Openbox-LXDE session, but I do not understand how. Anyone has idea how to resolve this issue?

  2. #2
    Junior Member
    Join Date
    Aug 2011
    Posts
    24
    Clarifications: Not only Openbox-LXDE, but also Metacity wm is affected. It is a mystery for me why with Compiz window manager the notifications are OK...
    Knoppix version: 8.6.0. But I am sure that the latest
    Knoppix version (8.6.1) has the same notification problem since notify-osd is the same version: 0.9.35+15.04.20150126-1+b1. So, not the notify-send is the problem, but notify-osd daemon.

    I think this problem cannot be resolved because notify-osd is unconfigurable. I use this workaround:
    * use notify-send always with "-t 0" option or zenity, xmessage instead of notify-send in scripts
    * switch off notifications of applications to get rid of annoying black boxes

    I run this script after X-start to disable notifications:
    Code:
    #!/bin/sh
    ################################################################################
    # gsettings v2020.02.12
    # (C) SZILÁGYI Zsolt; License: GPL V2
    # Knoppix 8.6.0: notify-osd bug: LXDE, openbox-lxde and metacity: unreadable
    # messages. Use notify send with "-t 0" or zenity (xmessage) for your scripts.
    # This script disable messages of nm-applet and gnome-mplayer (and more...).
    # Edit the script to add more applications. Execute in GUI.
    ################################################################################
    
    
    type gsettings >/dev/null 2>&1 || exit
    test "$DISPLAY" || exit
    
    
    if type nm-applet >/dev/null 2>&1; then
     for i in disable-disconnected-notifications disable-vpn-notifications \
     disable-connected-notifications suppress-wireless-networks-available; do
      gsettings list-keys org.gnome.nm-applet | grep -q "$i" &&
      test $(gsettings get org.gnome.nm-applet "$i") = false &&
      gsettings set org.gnome.nm-applet "$i" true
     done
    fi
    
    
    if type gnome-mplayer >/dev/null 2>&1; then
     for i in show-status-icon show-notification; do
      gsettings list-keys apps.gnome-mplayer.preferences | grep -q "$i" &&
      test $(gsettings get apps.gnome-mplayer.preferences "$i") = true &&
      gsettings set apps.gnome-mplayer.preferences "$i" false  
     done
     
     gsettings list-keys apps.gnome-mplayer.preferences | \
     grep -q disable-cover-art-fetch &&
     test $(gsettings get apps.gnome-mplayer.preferences disable-cover-art-fetch) \
     = false &&
     gsettings set apps.gnome-mplayer.preferences disable-cover-art-fetch true
     
     gsettings list-keys apps.gnome-mplayer.preferences | grep -q resume-mode &&
     test $(gsettings get apps.gnome-mplayer.preferences resume-mode) -eq 0 &&
     gsettings set apps.gnome-mplayer.preferences resume-mode 1
    fi
    
    
    exit
    Start it with /etc/xdg/autostart/gsettings.desktop
    Code:
    [Desktop Entry]
    Name=GSettings
    Exec=/.../.../gsettings
    Terminal=false
    Type=Application
    Currently I do not use persistence, so I do not know if the script must be run at every start (/etc/xdg/autostart/gsettings.desktop) in that case.
    Last edited by szzsqing1; 02-12-2020 at 04:32 PM.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


Dell PowerEdge R730 | Xeon E5-2620 V3 + (2) 1TB SAS & (6) 4TB SAS | H830 | H730 picture

Dell PowerEdge R730 | Xeon E5-2620 V3 + (2) 1TB SAS & (6) 4TB SAS | H830 | H730

$649.97



Dell Precision 5540 15.6

Dell Precision 5540 15.6" FHD Laptop XEON E-2276M 32GB 256GB T1000 W10P

$629.99



Dell EMC NX3230 Server picture

Dell EMC NX3230 Server

$599.99



CSE-118 Supermicro 1U 3x GPU Server  2.6Ghz 20-C 128GB CX353A 2x1600W PSU Rails picture

CSE-118 Supermicro 1U 3x GPU Server 2.6Ghz 20-C 128GB CX353A 2x1600W PSU Rails

$454.03



CM8066002031501 INTEL XEON E5-2680V4 2.40GHZ 35MB 14-CORE 120W PROCESSOR picture

CM8066002031501 INTEL XEON E5-2680V4 2.40GHZ 35MB 14-CORE 120W PROCESSOR

$15.95



Intel Xeon E5-2697A V4 2.60GHz 16-Core 40MB LGA2011-3 Server CPU Processor SR2K1 picture

Intel Xeon E5-2697A V4 2.60GHz 16-Core 40MB LGA2011-3 Server CPU Processor SR2K1

$48.00



Intel Xeon Gold 6138 2.0GHz 27.5MB 20-Core 125W LGA3647 SR3B5 picture

Intel Xeon Gold 6138 2.0GHz 27.5MB 20-Core 125W LGA3647 SR3B5

$46.00



Intel Xeon E5-2699 v3 2.3GHz 18-Core 45MB 145W LGA2011-3 CPU/Processor SR1XD picture

Intel Xeon E5-2699 v3 2.3GHz 18-Core 45MB 145W LGA2011-3 CPU/Processor SR1XD

$39.99



Dell Precision 3420 SFF Xeon, 16GB Ram, 512GB NVMe, K620, PC Desktop Win 11 Pro picture

Dell Precision 3420 SFF Xeon, 16GB Ram, 512GB NVMe, K620, PC Desktop Win 11 Pro

$142.99



DELL Precision 3420 SFF Xeon, 32GB, 1TB NVMe SSD, nVidia+Wi-Fi PC Desktop Win11P picture

DELL Precision 3420 SFF Xeon, 32GB, 1TB NVMe SSD, nVidia+Wi-Fi PC Desktop Win11P

$209.00