Arch Linux

v_jos

Member

Registered: 2025-04-13

Posts: 3

AMD gpu dont start after grub

I have problem after last update. After i pick arch linux in grub sddm dont start and display sleep.
I found that my gpu dont start after grub. If i add nomodeset in grub config i got system working but without gpu.
I found that my root was full with pacman files, but refreshing pacman -Syu did not help.
I did sudo mkinitcpio -P but nothing changed.
My gpu is Powercolor AMD Radeon rx6600.

After

sudo dmesg | grep -E "amdgpu|drm"

i got:

[ 2.860337] ACPI: bus type drm_connector registered 
[ 2.929459] simple-framebuffer simple-framebuffer.0: [drm] Registered 1 planes with drm panic 
[ 2.929486] [drm] Initialized simpledrm 1.0.0 for simple-framebuffer.0 on minor 0 
[ 2.930618] simple-framebuffer simple-framebuffer.0: [drm] fb0: simpledrmdrmfb frame buffer device 
[ 8.550286] amdgpu: Virtual CRAT table created for CPU 
[ 8.550309] amdgpu: Topology: Add CPU node 
[ 8.550424] amdgpu 0000:0a:00.0: probe with driver amdgpu failed with error -22 
[ 10.216849] systemd[1]: Load Kernel Module drm skipped, unmet condition check ConditionKernelModuleLoaded=!drm

Last edited by v_jos (Today 12:48:48)

Nikolai5

Member

From: North West, England, UK

Registered: 2024-01-27

Posts: 268

Re: AMD gpu dont start after grub

Can you share the full log please?

Boot without nomodeset, and then reboot with it, so you can extract the log.

Use this to get the log for the previous boot:

journalctl -b -1

Share here and wrap in code tags please.

Can you confirm what the contents of your /etc/mkinitcpio.conf file is as well?
I assume you have linux-firmware, mesa and your system is fully up to date, you aren't running an out of sync mirror?

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Ryzen 7 9850X3D | AMD 7800XT | KDE Plasma

v_jos

Member

Registered: 2025-04-13

Posts: 3

Re: AMD gpu dont start after grub

I got this for

journalctl -b -1

Apr 08 14:36:06 archlinux kernel: Linux version 6.19.11-arch1-1 (linux@>
Apr 08 14:36:06 archlinux kernel: Command line: BOOT_IMAGE=/boot/vmlinu>
Apr 08 14:36:06 archlinux kernel: BIOS-provided physical RAM map:
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x0000000000000000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000000a0000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x0000000000100000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x0000000009c3f000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x000000000a000000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x000000000a200000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x000000000a211000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x000000000b000000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x000000000b020000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000bb240000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000bc95d000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000bc9a1000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000bd07e000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000bddff000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000bf000000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000f0000000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000fd200000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000fd600000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000fea00000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000feb80000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000fec10000-0x>
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000fec30000-0x>
lines 1-25...skipping...
Apr 08 14:36:06 archlinux kernel: Linux version 6.19.11-arch1-1 (linux@archlinux) (gcc (GCC) 15.2.1 20260209, GNU ld (GNU Binutils) 2.46) #1 SMP PREEMPT_DYNAMIC Thu, 02 Apr >
Apr 08 14:36:06 archlinux kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-linux root=UUID=22f313cf-acb2-4fe9-856c-3c2e798aeb15 rw loglevel=3 quiet amdgpu.dc=0
Apr 08 14:36:06 archlinux kernel: BIOS-provided physical RAM map:
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x0000000000000000-0x000000000009ffff] usable
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000000a0000-0x00000000000fffff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x0000000000100000-0x0000000009c3efff] usable
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x0000000009c3f000-0x0000000009ffffff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x000000000a000000-0x000000000a1fffff] usable
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x000000000a200000-0x000000000a210fff] ACPI NVS
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x000000000a211000-0x000000000affffff] usable
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x000000000b000000-0x000000000b01ffff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x000000000b020000-0x00000000bb23ffff] usable
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000bb240000-0x00000000bc95cfff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000bc95d000-0x00000000bc9a0fff] ACPI data
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000bc9a1000-0x00000000bd07dfff] ACPI NVS
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000bd07e000-0x00000000bddfefff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000bddff000-0x00000000beffffff] usable
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000bf000000-0x00000000bfffffff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000f0000000-0x00000000f7ffffff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000fd200000-0x00000000fd2fffff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000fd600000-0x00000000fd7fffff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000fea00000-0x00000000fea0ffff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000feb80000-0x00000000fec01fff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000fec10000-0x00000000fec10fff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000fec30000-0x00000000fec30fff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000fed00000-0x00000000fed00fff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000fed40000-0x00000000fed44fff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000fed80000-0x00000000fed8ffff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000fedc2000-0x00000000fedcffff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000fedd4000-0x00000000fedd5fff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x00000000ff000000-0x00000000ffffffff] reserved
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x0000000100000000-0x000000043f37ffff] usable
Apr 08 14:36:06 archlinux kernel: BIOS-e820: [mem 0x000000043f380000-0x000000043fffffff] reserved
Apr 08 14:36:06 archlinux kernel: NX (Execute Disable) protection: active
Apr 08 14:36:06 archlinux kernel: APIC: Static calls initialized
Apr 08 14:36:06 archlinux kernel: efi: EFI v2.7 by American Megatrends
Apr 08 14:36:06 archlinux kernel: efi: ACPI=0xbd067000 ACPI 2.0=0xbd067014 TPMFinalLog=0xbd031000 SMBIOS=0xbdbf0000 SMBIOS 3.0=0xbdbef000 MEMATTR=0xb7c4d698 ESRT=0xba2aee18 >
Apr 08 14:36:06 archlinux kernel: random: crng init done
Apr 08 14:36:06 archlinux kernel: efi: Remove mem292: MMIO range=[0xf0000000-0xf7ffffff] (128MB) from e820 map
Apr 08 14:36:06 archlinux kernel: e820: remove [mem 0xf0000000-0xf7ffffff] reserved
Apr 08 14:36:06 archlinux kernel: efi: Remove mem293: MMIO range=[0xfd200000-0xfd2fffff] (1MB) from e820 map
Apr 08 14:36:06 archlinux kernel: e820: remove [mem 0xfd200000-0xfd2fffff] reserved
Apr 08 14:36:06 archlinux kernel: efi: Remove mem294: MMIO range=[0xfd600000-0xfd7fffff] (2MB) from e820 map 

This is my /etc/mkinitcpio.conf

MODULES=(amdgpu)
BINARIES=()
FILES=()
HOOKS=(base systemd autodetect microcode modconf kms keyboard keymap sd-vconsole block filesystems fsck)

5hridhyan

Member

From: Asia

Registered: 2025-12-25

Posts: 502

Re: AMD gpu dont start after grub

may I ask you any specific reason using `amdgpu.dc=0`?

Edit:
try booting w/o it, at least temporarily, if still fails, please post journal logs for such run

Last edited by 5hridhyan (Today 13:03:03)

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v_jos

Member

Registered: 2025-04-13

Posts: 3

Re: AMD gpu dont start after grub

amdgpu.dc=0

is chatgpt suggestion to fix problem.

MODULES=(amdgpu)

was chatgpt suggestion too.
None of them work.

5hridhyan

Member

From: Asia

Registered: 2025-12-25

Posts: 502

Re: AMD gpu dont start after grub

So, which was the cause and which was the consequence?

Last edited by 5hridhyan (Today 17:08:11)

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