Cursor colour is too dark on KDE

[saluki]

Hello,

I’ve been really bugged by this issue, but I have not managed to find any way to solve it yet, nothing anywhere on the internet either (well, no answers).

Anyway, my cursors are all showing up too dark when I try to use them. The preview showed by KDE Settings has the right colour, but even when I hover over that, I get the darkened colour.

This image shows this. I have had to take the picture with my phone because taking a system screenshot shows the expected colour, weirdly.

I’m using KDE with Xorg, although Wayland does not fix the issue.

Does anyone have any idea what I might be able to do to sort this out?

[Ben]

Try creating a new user account.
I never saw anything like this - my previews match the cursor exactly…

[saluki]

I gave that a go, but the cursor issue prevailed. It might be worth noting I also get this issue in SDDM. It also impacts any cursor I use, not just the Breeze ones.

[saluki]

Also, if it helps here is my output for inxi -F:

System:
  Host: humboldt Kernel: 5.16.14-1-MANJARO x86_64 bits: 64
    Desktop: KDE Plasma 5.24.3 Distro: Manjaro Linux
Machine:
  Type: Desktop Mobo: ASRock model: B450M Steel Legend
    serial: <superuser required> UEFI: American Megatrends v: P3.60
    date: 11/03/2020
CPU:
  Info: 12-core model: AMD Ryzen 9 5900X bits: 64 type: MT MCP cache:
    L2: 6 MiB
  Speed (MHz): avg: 2661 min/max: 2200/4950 cores: 1: 3598 2: 2055 3: 3602
    4: 2055 5: 2056 6: 3596 7: 4583 8: 2034 9: 2036 10: 2038 11: 2034 12: 3047
    13: 3598 14: 2056 15: 2054 16: 2056 17: 2095 18: 3597 19: 4587 20: 2033
    21: 2034 22: 2979 23: 2032 24: 2031
Graphics:
  Device-1: AMD Navi 23 [Radeon RX 6600/6600 XT/6600M] driver: amdgpu
    v: kernel
  Device-2: Logitech Webcam C270 type: USB driver: snd-usb-audio,uvcvideo
  Display: x11 server: X.Org v: 1.21.1.3 driver: X: loaded: amdgpu,ati
    unloaded: modesetting,radeon gpu: amdgpu resolution: 2560x1440~144Hz
  OpenGL: renderer: AMD Radeon RX 6600 XT (DIMGREY_CAVEFISH DRM 3.44.0
    5.16.14-1-MANJARO LLVM 13.0.1)
    v: 4.6 Mesa 21.3.7
Audio:
  Device-1: AMD Navi 21 HDMI Audio [Radeon RX 6800/6800 XT / 6900 XT]
    driver: snd_hda_intel
  Device-2: AMD Starship/Matisse HD Audio driver: snd_hda_intel
  Device-3: Logitech Webcam C270 type: USB driver: snd-usb-audio,uvcvideo
  Sound Server-1: ALSA v: k5.16.14-1-MANJARO running: yes
  Sound Server-2: PipeWire v: 0.3.48 running: yes
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    driver: r8169
  IF: enp4s0 state: up speed: 1000 Mbps duplex: full mac: censored
  IF-ID-1: outline-tun0 state: down mac: N/A
  IF-ID-2: virbr0 state: down mac: censored
Drives:
  Local Storage: total: 1.36 TiB used: 889.38 GiB (63.7%)
  ID-1: /dev/sda vendor: Crucial model: CT500MX500SSD1 size: 465.76 GiB
  ID-2: /dev/sdb vendor: Toshiba model: HDWD110 size: 931.51 GiB
Partition:
  ID-1: / size: 457.09 GiB used: 329.04 GiB (72.0%) fs: ext4 dev: /dev/sda2
  ID-2: /boot/efi size: 299.4 MiB used: 288 KiB (0.1%) fs: vfat
    dev: /dev/sda1
Swap:
  Alert: No swap data was found.
Sensors:
  System Temperatures: cpu: N/A mobo: N/A gpu: amdgpu temp: 54.0 C
  Fan Speeds (RPM): N/A gpu: amdgpu fan: 0
Info:
  Processes: 451 Uptime: 6m Memory: 31.27 GiB used: 2.93 GiB (9.4%)
  Shell: Zsh inxi: 3.3.13

[Tomek]

I have the same issue from long time, but darker cursors aren’t a problem for me, so I leave it as it be (but I made some tests ). On screenshot everything is ok, new user or Wayland don’t solve this. Messing with screen settings also don’t help. I don’t have idea what may be cause, but I suspect that there can be something in mesa driver – that’s more probable after your issue, we have identical GPU.

[saluki]

I do think that is the most likely cause at this point. I have opened a bug report on the Mesa GitLab, hopefully they’ll be able to shed some light on the problem.

Cursors being rendered too dark on RX 6600XT (#6187) · Issues · Mesa / mesa

[saluki]

Looks like this is an issue with several different AMD GPUs, something to do with Gamma. (wrong colors & cursor gamma vs. modesetting/Wayland on RDNA2 (#1513) · Issues · drm / amd · GitLab). It looks like there may be workarounds. I’ll update this thread if I manage to get one working.

[nfp0]

I also have this issue on an RX 6800.

There are 2 possible fixes for this depending if you’re using Wayland or Xorg:

• Wayland: Use the KWIN_DRM_NO_AMS=1 as described here.

• For Xorg: Set your AMD GPU to use a software cursor as described here.

[saluki]

Thank you so much!