Application icons do not appear in the panel  [Solved]

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josevidal
Posts: 7
Joined: Sun Oct 11, 2020 12:01 pm

Application icons do not appear in the panel  [Solved]

#1 Post by josevidal »

Hello,
The work done by the MXLinux team is fabulous. I want to contribute something with this post.
I just want to share with you a way to solve the problem that I had with some programs (that use java), the application icon was not shown in the panel, only a gear was displayed.

I followed the steps of:
https://itsfoss.com/ubuntu-app-icon-missing/

It is related to
WM_CLASS property of the application

Although it says that it only works in gnome, in xfce in to me it worked in the following system:

Code: Select all

System:
  Kernel: 6.1.0-21-amd64 [6.1.90-1] arch: x86_64 bits: 64 compiler: gcc v: 12.2.0
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.1.0-21-amd64 root=UUID=<filter> ro
  Desktop: Xfce v: 4.18.1 tk: Gtk v: 3.24.36 info: xfce4-panel wm: xfwm v: 4.18.0 vt: 7
    dm: LightDM v: 1.26.0 Distro: MX-23.3_x64 Libretto October 15  2023 base: Debian GNU/Linux 12
    (bookworm)
Machine:
  Type: Laptop System: Apple product: MacBookPro11,3 v: 1.0 serial: <superuser required> Chassis:
    type: 10 v: Mac-2BD1B31983FE1663 serial: <superuser required>
  Mobo: Apple model: Mac-2BD1B31983FE1663 v: MacBookPro11,3 serial: <superuser required>
    UEFI: Apple v: 431.0.0.0.0 date: 02/22/2021
Battery:
  ID-1: BAT0 charge: 58.7 Wh (89.2%) condition: 65.8/95.4 Wh (69.0%) volts: 11.5 min: 11.3
    model: SMP bq20z451 type: Li-ion serial: N/A status: discharging cycles: 408
CPU:
  Info: model: Intel Core i7-4980HQ bits: 64 type: MT MCP arch: Haswell gen: core 4 level: v3
    note: check built: 2013-15 process: Intel 22nm family: 6 model-id: 0x46 (70) stepping: 1
    microcode: 0x1C
  Topology: cpus: 1x cores: 4 tpc: 2 threads: 8 smt: enabled cache: L1: 256 KiB
    desc: d-4x32 KiB; i-4x32 KiB L2: 1024 KiB desc: 4x256 KiB L3: 6 MiB desc: 1x6 MiB
  Speed (MHz): avg: 884 high: 998 min/max: 800/4000 scaling: driver: intel_cpufreq
    governor: ondemand cores: 1: 800 2: 998 3: 945 4: 898 5: 933 6: 800 7: 900 8: 800 bogomips: 44697
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
  Vulnerabilities:
  Type: gather_data_sampling status: Not affected
  Type: itlb_multihit status: KVM: VMX disabled
  Type: l1tf mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable
  Type: mds mitigation: Clear CPU buffers; SMT vulnerable
  Type: meltdown mitigation: PTI
  Type: mmio_stale_data status: Unknown: No mitigations
  Type: reg_file_data_sampling status: Not affected
  Type: retbleed status: Not affected
  Type: spec_rstack_overflow status: Not affected
  Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via prctl
  Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer sanitization
  Type: spectre_v2 mitigation: Retpolines; IBPB: conditional; IBRS_FW; STIBP: conditional; RSB
    filling; PBRSB-eIBRS: Not affected; BHI: Not affected
  Type: srbds mitigation: Microcode
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: NVIDIA GK107M [GeForce GT 750M Mac Edition] vendor: Apple driver: nouveau v: kernel
    non-free: series: 470.xx+ status: legacy-active (EOL~2023/24) arch: Kepler code: GKxxx
    process: TSMC 28nm built: 2012-18 pcie: gen: 1 speed: 2.5 GT/s lanes: 8 link-max: gen: 3
    speed: 8 GT/s lanes: 16 ports: active: HDMI-A-1 off: eDP-1 empty: DP-1,DP-2 bus-ID: 01:00.0
    chip-ID: 10de:0fe9 class-ID: 0300 temp: 51.0 C
  Display: x11 server: X.Org v: 1.21.1.7 compositor: xfwm v: 4.18.0 driver: X:
    loaded: modesetting unloaded: fbdev,vesa dri: nouveau gpu: nouveau display-ID: :0.0 screens: 1
  Screen-1: 0 s-res: 2560x1440 s-dpi: 96 s-size: 677x381mm (26.65x15.00") s-diag: 777mm (30.58")
  Monitor-1: HDMI-A-1 mapped: HDMI-1 model: Idek Iiyama PL2792Q serial: <filter> built: 2022
    res: 2560x1440 hz: 60 dpi: 109 gamma: 1.2 size: 597x336mm (23.5x13.23") diag: 685mm (27")
    ratio: 16:9 modes: max: 2560x1440 min: 640x480
  Monitor-2: eDP-1 note: disabled pos: primary model: Apple Color LCD built: 2013 res: 2560x1440
    dpi: 221 gamma: 1.2 size: 331x207mm (13.03x8.15") diag: 390mm (15.4") ratio: 16:10 modes:
    max: 2880x1800 min: 800x600
  API: OpenGL v: 4.3 Mesa 22.3.6 renderer: NVE7 direct-render: Yes
Audio:
  Device-1: Intel 8 Series/C220 Series High Definition Audio driver: snd_hda_intel v: kernel
    bus-ID: 00:1b.0 chip-ID: 8086:8c20 class-ID: 0403
  Device-2: NVIDIA GK107 HDMI Audio vendor: Apple driver: snd_hda_intel v: kernel pcie: gen: 1
    speed: 2.5 GT/s lanes: 8 link-max: gen: 3 speed: 8 GT/s lanes: 16 bus-ID: 01:00.1
    chip-ID: 10de:0e1b class-ID: 0403
  Device-3: Broadcom 720p FaceTime HD Camera driver: N/A pcie: speed: Unknown lanes: 63 link-max:
    gen: 6 speed: 64 GT/s bus-ID: 04:00.0 chip-ID: 14e4:1570 class-ID: 0480
  API: ALSA v: k6.1.0-21-amd64 status: kernel-api tools: alsamixer,amixer
  Server-1: PipeWire v: 1.0.0 status: active with: 1: pipewire-pulse status: active
    2: wireplumber status: active 3: pipewire-alsa type: plugin 4: pw-jack type: plugin
    tools: pactl,pw-cat,pw-cli,wpctl
Network:
  Device-1: Broadcom BCM4360 802.11ac Wireless Network Adapter vendor: Apple driver: wl v: kernel
    modules: bcma pcie: gen: 1 speed: 2.5 GT/s lanes: 1 bus-ID: 03:00.0 chip-ID: 14e4:43a0
    class-ID: 0280
  IF: wlan0 state: up mac: <filter>
Bluetooth:
  Device-1: Apple Bluetooth Host Controller type: USB driver: btusb v: 0.8 bus-ID: 1-8.3:7
    chip-ID: 05ac:8289 class-ID: fe01
  Report: hciconfig ID: hci0 rfk-id: 1 state: up address: <filter> bt-v: 2.1 lmp-v: 4.0
    sub-v: 4196 hci-v: 4.0 rev: 2467
  Info: acl-mtu: 1021:8 sco-mtu: 64:1 link-policy: rswitch sniff link-mode: peripheral accept
    service-classes: rendering, capturing, object transfer, audio, telephony
Drives:
  Local Storage: total: 465.92 GiB used: 275.01 GiB (59.0%)
  SMART Message: Unable to run smartctl. Root privileges required.
  ID-1: /dev/sda maj-min: 8:0 vendor: Apple model: SSD SM0512F size: 465.92 GiB block-size:
    physical: 4096 B logical: 512 B speed: 6.0 Gb/s type: SSD serial: <filter> rev: JA1Q scheme: GPT
Partition:
  ID-1: / raw-size: 465.67 GiB size: 457.29 GiB (98.20%) used: 275.01 GiB (60.1%) fs: ext4
    dev: /dev/sda2 maj-min: 8:2
  ID-2: /boot/efi raw-size: 256 MiB size: 252 MiB (98.46%) used: 274 KiB (0.1%) fs: vfat
    dev: /dev/sda1 maj-min: 8:1
Swap:
  Kernel: swappiness: 15 (default 60) cache-pressure: 100 (default)
  ID-1: swap-1 type: file size: 4 GiB used: 0 KiB (0.0%) priority: -2 file: /swap/swap
Sensors:
  System Temperatures: cpu: 57.0 C mobo: N/A gpu: nouveau temp: 51.0 C
  Fan Speeds (RPM): N/A
Repos:
  Packages: pm: dpkg pkgs: 3152 libs: 1657 tools: apt,apt-get,aptitude,nala,synaptic pm: rpm
    pkgs: 0 pm: flatpak pkgs: 0
  No active apt repos in: /etc/apt/sources.list
  Active apt repos in: /etc/apt/sources.list.d/debian-stable-updates.list
    1: deb http://deb.debian.org/debian bookworm-updates main contrib non-free non-free-firmware
  Active apt repos in: /etc/apt/sources.list.d/debian.list
    1: deb http://deb.debian.org/debian bookworm main contrib non-free non-free-firmware
    2: deb http://security.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware
  Active apt repos in: /etc/apt/sources.list.d/mx.list
    1: deb http://ftp.cica.es/mirrors/Linux/MX-Packages/mx/repo/ bookworm main non-free
Info:
  Processes: 275 Uptime: 7m wakeups: 3 Memory: 15.53 GiB used: 2.76 GiB (17.7%) Init: SysVinit
  v: 3.06 runlevel: 5 default: graphical tool: systemctl Compilers: gcc: 12.2.0 alt: 12
  Client: shell wrapper v: 5.2.15-release inxi: 3.3.26
Boot Mode: UEFI
Last edited by josevidal on Wed Jun 26, 2024 4:59 pm, edited 1 time in total.
Enjoying with: MX Linux 23 xfce

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Eadwine Rose
Administrator
Posts: 14918
Joined: Wed Jul 12, 2006 2:10 am

Re: Application icons do not appear in the panel

#2 Post by Eadwine Rose »

With all help requests, please share your full Quick System Info, found in the menu. Press the Copy for forum button, then click paste in a reply.. thanks.
MX-23.6_x64 July 31 2023 * 6.1.0-37amd64 ext4 Xfce 4.20.0 * 8-core AMD Ryzen 7 2700
Asus TUF B450-Plus Gaming UEFI * Asus GTX 1050 Ti Nvidia 535.247.01 * 2x16Gb DDR4 2666 Kingston HyperX Predator
Samsung 870EVO * Samsung S24D330 & P2250 * HP Envy 5030

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