Remove shadows around popup notifications and drop down menus

hazel-bunny

Hi, I'm new here. Switched to Solus MATE edition a few days ago from LMDE. I've installed picom from repositories and chosen Marco (Compton GPU Compositor) in Window Manager tweaks. But now I get these ugly black bars around notifications and drop down menus, regardless of the notification style I choose in MATE Control Center. >_< Searched this forum and multiple other places, eg askubuntu, for a solution, but found none. How can I get rid of them?

Just look at the top right corner of the screenshot to see those ugly black bars. Those were visible as shadows when I chose 'Marco (Adaptive compositor)' in window manager tweaks.

If you need it, here's my system info:

$ inxi -Fxxx
System:
  Host: hp-bw077 Kernel: 5.11.12-177.current x86_64 bits: 64 compiler: gcc 
  v: 10.2.1 Desktop: MATE 1.24.2 info: mate-panel wm: marco 1.24.2 
  dm: LightDM 1.30.0 Distro: Solus 4.2 
Machine:
  Type: Laptop System: HP product: HP Laptop 14-bw0xx v: N/A 
  serial: <superuser required> Chassis: type: 10 
  serial: <superuser required> 
  Mobo: HP model: 8324 v: 22.27 serial: <superuser required> UEFI: AMI 
  v: F.28 date: 04/09/2019 
Battery:
  ID-1: BAT0 charge: 25.2 Wh condition: 25.2/25.2 Wh (100%) volts: 16.7/14.6 
  model: HP Primary type: Li-ion serial: N/A status: Full cycles: 227 
CPU:
  Info: Dual Core model: AMD E2-9000e RADEON R2 4 COMPUTE CORES 2C+2G 
  bits: 64 type: MCP arch: Excavator rev: 0 L2 cache: 1024 KiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm 
  bogomips: 5989 
  Speed: 1984 MHz min/max: 1100/1500 MHz boost: enabled Core speeds (MHz): 
  1: 1984 2: 1966 
Graphics:
  Device-1: AMD Stoney [Radeon R2/R3/R4/R5 Graphics] vendor: Hewlett-Packard 
  driver: amdgpu v: kernel bus ID: 00:01.0 chip ID: 1002:98e4 class ID: 0300 
  Device-2: Sunplus Innovation HP TrueVision HD Camera type: USB 
  driver: uvcvideo bus ID: 1-1.3:3 chip ID: 1bcf:2c9b class ID: 0e02 
  Display: x11 server: X.Org 1.20.11 compositor: marco v: 1.24.2 driver: 
  loaded: amdgpu,ati unloaded: fbdev,modesetting,vesa 
  resolution: 1366x768~60Hz s-dpi: 96 
  OpenGL: renderer: AMD STONEY (DRM 3.40.0 5.11.12-177.current LLVM 11.1.0) 
  v: 4.5 Mesa 20.3.3 direct render: Yes 
Audio:
  Device-1: AMD vendor: Hewlett-Packard driver: snd_hda_intel v: kernel 
  bus ID: 00:01.1 chip ID: 1002:15b3 class ID: 0403 
  Device-2: AMD Family 15h Audio vendor: Hewlett-Packard 
  driver: snd_hda_intel v: kernel bus ID: 00:09.2 chip ID: 1022:157a 
  class ID: 0403 
  Sound Server: ALSA v: k5.11.12-177.current 
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  vendor: Hewlett-Packard driver: r8169 v: kernel port: e000 bus ID: 02:00.0 
  chip ID: 10ec:8168 class ID: 0200 
  IF: eno1 state: down mac: b4:b6:86:e5:3a:a9 
  Device-2: Intel Dual Band Wireless-AC 3168NGW [Stone Peak] driver: iwlwifi 
  v: kernel port: e000 bus ID: 03:00.0 chip ID: 8086:24fb class ID: 0280 
  IF: wlo1 state: down mac: 5c:5f:67:7f:55:6c 
  IF-ID-1: enp0s18u1u1 state: unknown speed: N/A duplex: N/A 
  mac: 96:aa:22:d3:8a:21 
Bluetooth:
  Device-1: Intel Wireless-AC 3168 Bluetooth type: USB driver: btusb v: 0.8 
  bus ID: 1-1.4:4 chip ID: 8087:0aa7 class ID: e001 
  Message: Required tool hciconfig not installed. Check --recommends 
Drives:
  Local Storage: total: 465.76 GiB used: 118.7 GiB (25.5%) 
  ID-1: /dev/sda vendor: Western Digital model: WD5000LPCX-60VHAT0 
  size: 465.76 GiB speed: 6.0 Gb/s rotation: 5400 rpm 
  serial: WD-WX51A28H84VP rev: 1A01 scheme: GPT 
Partition:
  ID-1: / size: 22.79 GiB used: 16.46 GiB (72.2%) fs: ext4 dev: /dev/sda4 
  ID-2: /home size: 200.55 GiB used: 102.12 GiB (50.9%) fs: ext4 
  dev: /dev/sda5 
Swap:
  ID-1: swap-1 type: partition size: 5 GiB used: 117.5 MiB (2.3%) 
  priority: -2 dev: /dev/sda6 
Sensors:
  System Temperatures: cpu: 38.0 C mobo: N/A gpu: amdgpu temp: 38.0 C 
  Fan Speeds (RPM): N/A 
Info:
  Processes: 186 Uptime: 5h 17m wakeups: 1 Memory: 3.7 GiB 
  used: 1.62 GiB (43.6%) Init: systemd v: 247 runlevel: 5 Compilers: 
  gcc: 10.2.0 Packages: 915 eopkg: 895 flatpak: 20 Shell: Bash v: 5.1.4 
  running in: mate-terminal inxi: 3.3.01

And here's my ~/.config/picom/picom.conf: https://raw.githubusercontent.com/yshui/picom/next/picom.sample.conf (Actually I didn't have a picom.conf in the first place. But when those problems started, I copied that into picom.conf to no effect)

h3o

I don't think you needed to download picom separately for Mate? Try to remove it then log out/in or reboot. Otherwise, in your picom.conf try changing shadow = true to shadow = false.

hazel-bunny

h3o Without installing picom, only

Marco (No compositor)
Marco (Adaptive compositor)
Compiz (something with GPU in it)

were present in window manager tweaks. All marco options gave me horrid screens due to screen tearing in the past and compiz eats too much ram (the whole DE took 835 MB on boot, measured using htop; that's quite high for MATE, isn't it?). So I checked eopkg check compton and eopkg check picom but they weren't installed.

Not gonna remove picom, because I dread those torn screens.

Tried changing that shadow attribute and restarting picom, but the appearance didn't change. Now trying various combinations of settings in that config file, however all turned futile till now.

sangheeta

Did you try changing notifications themes? (via control center/notifications)

hazel-bunny

sangheeta Yeah. Didn't work before, but mv picom.conf ../marco-compton.conf seems to have corrected the issue with a few exceptions. The notification styles slate & solus-mate-theme are still broken, albeit in a differet way. That probably deserves another post, unless I can find a solution.