Hello, I have built a fresh new PC and installed arch on it. The PC works fine and is fast, but it does not do this when I install my GPU.

Whenever I connect the power cables for my GPU, the computer will still start up and work fine for about 5-10s. Then it freezes up and becomes completely unusable. This only happens when the GPU is plugged in.

I was able to launch top before the system froze and it showed that there was a process called kworker which was using 100% cpu. If i leave the computer in this frozen state for a few minutes it crashes.

Things I have tried.
- Swapping Desktop Environment from LXQT to Cinnamon
- Many Reboots
- Upgrading my motherboard BIOS (I have a gigabyte b650 x ax)
- installing mesa

This might indicate your power supply is inadequate for the GPU. What model power supply are you using?

Visen,

I agree with biker_rat.

AMD recommends a PSU rated at a minimum of 700W for that 7800xt gpu.

I'm using a corsair RM750e modular psu, however I was using an 8 pin to 16 pin cable to power the gpu's two 8 pin slots. Maybe I should use two cables

I am now powering the gpu with two separate cables - no change in symptoms. After about 5 seconds the computer starts lagging incredibly badly - probably ten seconds to register a mouse movement.

My system stats:


robert@archlinux ~> inxi -Fxxxri
System:
Host: archlinux Kernel: 6.8.1-arch1-1 arch: x86_64 bits: 64 compiler: gcc
v: 13.2.1 clocksource: tsc
Desktop: Cinnamon v: 6.0.4 tk: GTK v: 3.24.41 wm: Muffin v: 6.0.1 vt: 2
dm: SDDM Distro: Arch Linux
Machine:
Type: Desktop Mobo: Gigabyte model: B650 GAMING X AX v: x.x
serial: <superuser required> uuid: <superuser required> UEFI: American
Megatrends LLC. v: F20 date: 12/14/2023
CPU:
Info: 8-core model: AMD Ryzen 7 7800X3D bits: 64 type: MT MCP smt: enabled
arch: Zen 4 rev: 2 cache: L1: 512 KiB L2: 8 MiB L3: 96 MiB
Speed (MHz): avg: 599 high: 3592 min/max: 400/5050 cores: 1: 400 2: 400
3: 400 4: 400 5: 400 6: 400 7: 400 8: 400 9: 400 10: 400 11: 400 12: 400
13: 400 14: 400 15: 3592 16: 400 bogomips: 134185
Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
Graphics:
Device-1: AMD Raphael vendor: Gigabyte driver: amdgpu v: kernel arch: RDNA-2
pcie: speed: 16 GT/s lanes: 16 ports: active: DP-2 empty: DP-1, DP-3,
HDMI-A-1, Writeback-1 bus-ID: 0f:00.0 chip-ID: 1002:164e class-ID: 0300
temp: 33.0 C
Display: x11 server: X.org v: 1.21.1.11 with: Xwayland v: 23.2.4 driver:
X: loaded: amdgpu unloaded: modesetting alternate: fbdev,vesa dri: radeonsi
gpu: amdgpu display-ID: :0 note: <missing: xdpyinfo/xrandr>
Monitor-1: DP-2 model: AOC Q27G3XMN serial: 1APQ1JA003556 res: 2560x1440
dpi: 109 size: 597x336mm (23.5x13.23") diag: 685mm (27") modes:
max: 2560x1440 min: 720x400
API: OpenGL Message: Unable to show GL data. glxinfo is missing.
Audio:
Device-1: AMD Rembrandt Radeon High Definition Audio driver: snd_hda_intel
v: kernel pcie: speed: 16 GT/s lanes: 16 bus-ID: 0f:00.1 chip-ID: 1002:1640
class-ID: 0403
Device-2: AMD Family 17h/19h HD Audio vendor: Gigabyte
driver: snd_hda_intel v: kernel pcie: speed: 16 GT/s lanes: 16
bus-ID: 0f:00.6 chip-ID: 1022:15e3 class-ID: 0403
API: ALSA v: k6.8.1-arch1-1 status: kernel-api
Server-1: PipeWire v: 1.0.4 status: active with: 1: pipewire-pulse
status: active 2: wireplumber status: active 3: pipewire-alsa type: plugin
4: pw-jack type: plugin
Network:
Device-1: Realtek RTL8852CE PCIe 802.11ax Wireless Network
driver: rtw89_8852ce v: kernel pcie: speed: 5 GT/s lanes: 1 port: e000
bus-ID: 05:00.0 chip-ID: 10ec:c852 class-ID: 0280
IF: wlan0 state: up mac: bc:c7:46:a0:8a:f3
IP v4: 192.168.1.154/24 type: dynamic noprefixroute scope: global
broadcast: 192.168.1.255
IP v6: 2600:100c:a119:1aac:7c6b:a9e8:cd11:8d47/64
type: dynamic noprefixroute scope: global
IP v6: fe80::b8ed:1009:4a82:3d91/64 type: noprefixroute scope: link
Device-2: Realtek RTL8125 2.5GbE vendor: Gigabyte driver: r8169 v: kernel
pcie: speed: 5 GT/s lanes: 1 port: d000 bus-ID: 06:00.0 chip-ID: 10ec:8125
class-ID: 0200
IF: enp6s0 state: up speed: 1000 Mbps duplex: full mac: 74:56:3c:bd:1b:0f
IP v4: 192.168.1.152/24 type: dynamic noprefixroute scope: global
broadcast: 192.168.1.255
IP v6: 2600:100c:a119:1aac:fcb5:3969:6b62:bbe2/64
type: dynamic noprefixroute scope: global
IP v6: fe80::71b4:fab0:df7a:2c4a/64 type: noprefixroute scope: link
WAN IP: 97.139.105.175
Bluetooth:
Device-1: Realtek Bluetooth Radio driver: btusb v: 0.8 type: USB rev: 1.0
speed: 12 Mb/s lanes: 1 bus-ID: 1-9:3 chip-ID: 0bda:0852 class-ID: e001
serial: 00e04c000001
Report: rfkill ID: hci0 rfk-id: 1 state: down bt-service: not found
rfk-block: hardware: no software: no address: see --recommends
Drives:
Local Storage: total: 1.82 TiB used: 137.13 GiB (7.4%)
ID-1: /dev/nvme0n1 vendor: Crucial model: CT2000P3PSSD8 size: 1.82 TiB
speed: 63.2 Gb/s lanes: 4 tech: SSD serial: 2401E88BA1B1 fw-rev: P9CR40D
temp: 31.9 C scheme: GPT
Partition:
ID-1: / size: 1.82 TiB used: 137.07 GiB (7.4%) fs: btrfs dev: /dev/nvme0n1p2
ID-2: /boot size: 511 MiB used: 61 MiB (11.9%) fs: vfat
dev: /dev/nvme0n1p1
ID-3: /home size: 1.82 TiB used: 137.07 GiB (7.4%) fs: btrfs
dev: /dev/nvme0n1p2
ID-4: /var/log size: 1.82 TiB used: 137.07 GiB (7.4%) fs: btrfs
dev: /dev/nvme0n1p2
Swap:
ID-1: swap-1 type: zram size: 4 GiB used: 0 KiB (0.0%) priority: 100
dev: /dev/zram0
Sensors:
System Temperatures: cpu: 38.4 C mobo: 29.0 C gpu: amdgpu temp: 34.0 C
Fan Speeds (rpm): N/A
Repos:
Packages: pm: pacman pkgs: 622
Active pacman repo servers in: /etc/pacman.d/mirrorlist
1: https://mirror.lty.me/archlinux/$repo/os/$arch
2: https://mirrors.dotsrc.org/archlinux/$repo/os/$arch
3: https://archmirror.it/repos/$repo/os/$arch
4: https://mirror.theo546.fr/archlinux/$repo/os/$arch
5: https://mirror.cyberbits.eu/archlinux/$repo/os/$arch
6: https://mirror.ufscar.br/archlinux/$repo/os/$arch
7: https://mirror.ubrco.de/archlinux/$repo/os/$arch
8: https://sydney.mirror.pkgbuild.com/$repo/os/$arch
9: https://america.mirror.pkgbuild.com/$repo/os/$arch
10: https://seoul.mirror.pkgbuild.com/$repo/os/$arch
11: https://mirror.sunred.org/archlinux/$repo/os/$arch
12: https://md.mirrors.hacktegic.com/archlinux/$repo/os/$arch
13: https://london.mirror.pkgbuild.com/$repo/os/$arch
14: https://archlinux.thaller.ws/$repo/os/$arch
15: https://mirror.erickochen.nl/archlinux/$repo/os/$arch
16: https://mirror.f4st.host/archlinux/$repo/os/$arch
17: https://mirrors.neusoft.edu.cn/archlinux/$repo/os/$arch
18: https://mirror.moson.org/arch/$repo/os/$arch
19: https://asia.mirror.pkgbuild.com/$repo/os/$arch
20: https://mirror.telepoint.bg/archlinux/$repo/os/$arch
Info:
Memory: total: 32 GiB note: est. available: 30.5 GiB used: 1.95 GiB (6.4%)
Processes: 348 Power: uptime: 13m states: freeze,mem,disk suspend: deep
wakeups: 0 hibernate: platform Init: systemd v: 255 default: graphical
Compilers: clang: 17.0.6 gcc: 13.2.1 Shell: fish v: 3.7.0
running-in: alacritty inxi: 3.3.33

More system info

robert@archlinux ~> lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14d8
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Device 14d9
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14da
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14da
00:02.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14db
00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14db
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14da
00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14da
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14da
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14dd
00:08.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 14dd
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 71)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e5
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e6
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 14e7
01:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Upstream Port (rev 01)
02:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
02:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
02:02.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
02:03.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
02:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
02:05.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
02:06.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
02:07.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
02:08.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
02:0c.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
02:0d.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset PCIe Switch Downstream Port (rev 01)
05:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8852CE PCIe 802.11ax Wireless Network Controller (rev 01)
06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller (rev 05)
0c:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset USB 3.2 Controller (rev 01)
0d:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] 600 Series Chipset SATA Controller (rev 01)
0e:00.0 Non-Volatile memory controller: Micron/Crucial Technology Device 5421 (rev 01)
0f:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Raphael (rev cb)
0f:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Rembrandt Radeon High Definition Audio Controller
0f:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 19h PSP/CCP
0f:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15b6
0f:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15b7
0f:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h/19h HD Audio Controller
10:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15b8
robert@archlinux ~> find /dev -group video
/dev/dri/card1
/dev/fb0

VGA controller

0f:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Raphael (rev cb) (prog-if 00 [VGA controller])
Subsystem: Gigabyte Technology Co., Ltd Raphael
Flags: bus master, fast devsel, latency 0, IRQ 71, IOMMU group 24
Memory at fce0000000 (64-bit, prefetchable) [size=256M]
Memory at fcf0000000 (64-bit, prefetchable) [size=2M]
I/O ports at f000 [size=256]
Memory at f6900000 (32-bit, non-prefetchable) [size=512K]
Capabilities: <access denied>
Kernel driver in use: amdgpu
Kernel modules: amdgpu

Update: I removed arch and tried installing ubuntu - same issue
Then I removed ubuntu and booted up windows - the GPU works fine with no issues or computer freezes.

This lets me determine that it is not a hardware issue, probably has to do with a bug in the linux kernel amd drivers if I had to guess.

If you think its a kernel /driver bug you should maybe post xorg and kernel logs? You should be research bug reports to the kernel and mesa. Also, you might try messsing with bios settings and other stuff to try & work around a bug. For instance you can leave the cpu graphics on & plug the video cable into the motherboard outputs and use the gpu purely as a vulkan/glx accelerator, or switch the cpu graphics off & plug the cable into the gpu outputs. You can mess with the graphic slot pcie settings and possibly the resizable bar setting.
If that doesn't work, you can look into reasearching amdgpu kernel module options which might prove helpful.