Slow download speeds on kernel 6.0.6-1 and 5.19.17-1


I am experiencing slow download speeds on kernel 6.0.6-1 and 5.19.17-1, 5.15.76-1 works as expected.

On kernel 6.0.6-1 and 5.19.17-1 I only get downloads speed below 100 Mbps, on 5.15.76-1 I get my normal 1000 Mbps speeds. Upload speed is 1000 Mbps on all 3 kernels. In both cases the test is performed using Ethernet connection.

Anybody got any ideas to what could be wrong ?

[legion claus]# inxi -F
  Host: legion Kernel: 5.15.76-1-MANJARO arch: x86_64 bits: 64 Desktop: Xfce
    v: 4.16.1 Distro: Manjaro Linux
  Type: Laptop System: LENOVO product: 82JU v: Legion 5 15ACH6H
    serial: PF3BKWM5
  Mobo: LENOVO model: LNVNB161216 v: SDK0J40709 WIN serial: PF3BKWM5
    UEFI: LENOVO v: GKCN46WW date: 10/01/2021
  ID-1: BAT0 charge: 57.9 Wh (100.0%) condition: 57.9/60.0 Wh (96.5%)
  Info: 6-core model: AMD Ryzen 5 5600H with Radeon Graphics bits: 64
    type: MT MCP cache: L2: 3 MiB
  Speed (MHz): avg: 1375 min/max: 1200/3300 cores: 1: 1200 2: 1200 3: 1200
    4: 1200 5: 1200 6: 3300 7: 1200 8: 1200 9: 1200 10: 1200 11: 1200 12: 1200
  Device-1: NVIDIA GA104M [GeForce RTX 3070 Mobile / Max-Q] driver: nvidia
    v: 520.56.06
  Display: x11 server: X.Org v: 21.1.4 driver: N/A resolution:
    1: 3440x1440~60Hz 2: 1920x1080~165Hz
  API: OpenGL v: 4.6.0 NVIDIA 520.56.06 renderer: NVIDIA GeForce RTX 3070
    Laptop GPU/PCIe/SSE2
  Device-1: NVIDIA GA104 High Definition Audio driver: snd_hda_intel
  Device-2: AMD ACP/ACP3X/ACP6x Audio Coprocessor driver: N/A
  Device-3: AMD Family 17h/19h HD Audio driver: snd_hda_intel
  Sound API: ALSA v: k5.15.76-1-MANJARO running: yes
  Sound Server-1: PulseAudio v: 16.1 running: yes
  Sound Server-2: PipeWire v: 0.3.59 running: yes
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    driver: r8169
  IF: eno1 state: up speed: 1000 Mbps duplex: full mac: 84:a9:38:6a:68:55
  Device-2: Intel Wi-Fi 6 AX200 driver: iwlwifi
  IF: wlp4s0 state: up mac: 10:51:07:12:3f:31
  Device-1: Intel AX200 Bluetooth type: USB driver: btusb
  Report: rfkill ID: hci0 state: up address: see --recommends
  Local Storage: total: 1.82 TiB used: 706.14 GiB (37.9%)
  ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 980 1TB size: 931.51 GiB
  ID-2: /dev/nvme1n1 vendor: Samsung model: SSD 980 1TB size: 931.51 GiB
  ID-1: / size: 97.61 GiB used: 39.2 GiB (40.2%) fs: xfs dev: /dev/nvme1n1p2
  ID-2: /boot/efi size: 511 MiB used: 300 KiB (0.1%) fs: vfat
    dev: /dev/nvme1n1p1
  ID-3: /home size: 832.95 GiB used: 666.94 GiB (80.1%) fs: xfs
    dev: /dev/nvme1n1p3
  Alert: No swap data was found.
  System Temperatures: cpu: 45.1 C mobo: N/A gpu: nvidia temp: 39 C
  Fan Speeds (RPM): N/A
  Processes: 382 Uptime: 20m Memory: 31.2 GiB used: 5.35 GiB (17.1%)
  Shell: Bash inxi: 3.3.23

You can safely stick with kernel 5.15, as it is an LTS kernel.

If you must insist on using 5.19 or 6.0, then you can try switching to the r8168 driver instead. This can be done easily via the Manjaro Hardware Detection Tool.

What tool are you using for your speed tests?


Found out that this problem occurred after each suspend session. A complete shutdown fixed the problem temporary.

A combination of shifting to kernel 6.2.0-2-MANJARO and changing /etc/default/grub from

GRUB_CMDLINE_LINUX_DEFAULT=“quiet apparmor=1 security=apparmor udev.log_priority=3 acpi_osi=Linux acpi_backlight=video amdgpu.backlight=0”


GRUB_CMDLINE_LINUX_DEFAULT=“quiet apparmor=1 security=apparmor udev.log_priority=3”

seems to have fixed the problem.

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