AMD Plymouth conflicts ? Black screen with AMD settings

Support Graphics & Display
,
1

Hi,
I have a strange behavior since I installed the AMD card, I will try to summarize as best as possible

Current config:

System:
  Kernel: 6.9.3-3-MANJARO arch: x86_64 bits: 64
  Desktop: KDE Plasma v: 6.0.5 Distro: Manjaro Linux

Grub:

GRUB_DEFAULT=saved
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="Manjaro-2"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash udev.log_priority=3"
GRUB_CMDLINE_LINUX="ipv6.disable_ipv6=1"

Graphics:

Device-1: AMD Navi 23 [Radeon RX 6600/6600 XT/6600M] driver: amdgpu
    v: kernel
Display: x11 server: X.Org v: 21.1.13 with: Xwayland v: 24.1.0 driver: X:
    loaded: modesetting dri: radeonsi gpu: amdgpu resolution: 3440x1440

10-amdgpu.conf:

Section "OutputClass"
        Identifier "AMDgpu"
        MatchDriver "amdgpu"
        Driver "amdgpu"
        Option "HotplugDriver" "admgpu"
EndSection

At this stage, Display is using modsetting, I cant set the max refresh rate to 144Hz, I cant see any V-Sync option in the Display settings

I add the following to the 10-amdgpu.conf:

Section "OutputClass"
        Identifier "AMDgpu"
        MatchDriver "amdgpu"
        Driver "amdgpu"
        Option "HotplugDriver" "admgpu"
EndSection

Section "Device"
        Identifier "AMD"
        Driver "amdgpu"
        VariableRefresh "true"
EndSection

Instead of logging screen, I get a black screen, but able to open a TTY, and get:

Display: x11 server: X.Org v: 21.1.13 with: Xwayland v: 24.1.0 driver: gpu: amdgpu

If in grub, I disable plymouth by removing the “splash” parameter, the loading gets stuck to

Starting Terminate Plymouth Boot Screen

and I have to ctrl+alt+del to reboot

Shall I remove Plymouth ? if yes, what is the safest way to do it ?
Or is there a problem in my conf file that prevent me to login in ?
Thanks !

1 Like
2

Impossible to answer.

I use a default system with Plymouth - no issues - but in terms of troubleshooting - it may be feasible to remove it.

See

1 Like
3

Hi,
Thanks for your fast answer
Issue is not with plymouth

I cant login when I add this lines to 10-amdgpu.conf, even with plymouth disabled:

Section "Device"
        Identifier "AMD"
        Driver "amdgpu"
        VariableRefresh "true"
EndSection

I will close this topic and open another specific one
Thanks again !

1 Like