XPS 9360 - AX200 - low signal issue

Hi,

Blockquote
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 02)
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620 (rev 02)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 02)
00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21)
00:15.1 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #1 (rev 21)
00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #1 (rev f1)
00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1)
00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #6 (rev f1)
00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point-LP LPC Controller (rev 21)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)
00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
3a:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a)
3b:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader (rev 01)
3c:00.0 Non-Volatile memory controller: Toshiba Corporation XG4 NVMe SSD Controller (rev 01)

Blockquote

I am using an XPS 9360 where I replaced the Killer wireless card with an AX200 one. Now the signal strength is very low on 2.4ghz 10-15 meters from the modem (Bbox V3 of Proximus). I tried live environments of Manjaro, Mint but I could not even connect there and I tried POP and there it worked though same low signal issues. There are sometimes disconnects as well.

Issues persists in latest kernel and LTS Kernel.

What I already did:

  • disable fast boot in BIOS. I am only running Endeavour, nothing else.
  • downloaded latest firmware which is in use:

[x@x ~]$ modinfo iwlwifi | grep iwlwifi-cc
firmware: iwlwifi-cc-a0-66.ucode

This is a later version then what is on the dell page. Source: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree

output of sudo dmesg | grep iwlwifi | grep version:

[ 2.828643] iwlwifi 0000:3a:00.0: loaded firmware version 66.f1c864e0.0 cc-a0-66.ucode op_mode iwlmvm

  • added the following in modprobe:

otions iwlwifi power_save=0
options iwlwifi uapsd_disable=1
options iwlmvm power_scheme=1
options iwlwifi enable_ini=N

What I have not tried yet:

Should I revert back to an older kernel or just use the driver of Intel?

Intel® Wi-Fi 6 AX200 160MHz 5.1+ iwlwifi-cc-46.3cfab8da.0.tgz

additional info

CPU: dual core Intel Core i5-7200U (-MT MCP-) speed/min/max: 861/400/3100 MHz
Kernel: 5.15.33-1-lts x86_64 Up: 38m Mem: 2604.2/7834.9 MiB (33.2%)
Storage: 238.47 GiB (53.2% used) Procs: 187 Shell: Bash inxi: 3.3.15

Blockquote 3a:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a)
Subsystem: Intel Corporation Wi-Fi 6 AX200NGW
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at dc200000 (64-bit, non-prefetchable) [size=16K]
Capabilities:
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
Blockquote

Blockquote sudo dmesg | grep iwl
[ 2.778275] iwlwifi 0000:3a:00.0: enabling device (0000 → 0002)
[ 2.828330] iwlwifi 0000:3a:00.0: api flags index 2 larger than supported by driver
[ 2.828341] iwlwifi 0000:3a:00.0: TLV_FW_FSEQ_VERSION: FSEQ Version: 89.3.35.37
[ 2.828643] iwlwifi 0000:3a:00.0: loaded firmware version 66.f1c864e0.0 cc-a0-66.ucode op_mode iwlmvm
[ 3.368545] iwlwifi 0000:3a:00.0: Detected Intel(R) Wi-Fi 6 AX200 160MHz, REV=0x340
[ 3.512540] iwlwifi 0000:3a:00.0: Detected RF HR B3, rfid=0x10a100
[ 3.581776] iwlwifi 0000:3a:00.0: base HW address: d0:3c:1f:0e:b9:38
Blockquote

AX200 seems to have issues generally.

There’s a number of possible fixes by tbg on the Garuda forum.

Disable power management:

Disable MAC address randomisation:

Apparently it can also just fix itself:

1 Like

thx!

I tried the different solutions and rebooted but no change like this advice:

It is probably an issue with this specific card or the antenna of the laptop. I might just try to interchange the card with the one of an older dell d5440 that uses an 9260 card. I just really wanted to avoid that because those connectors are so easy to break and that happened to me already once (although back then asrock sent replacements).

1 Like

Just checking whether you also tried kernel 5.4?

1 Like

I tried that but unfortunately, I get ‘no network devices available’ when I am on kernel 5.4 by importing your key and pgp and installing yay linux-lts54. I am typing this using LTS kernel where wifi works albeit slow.

1 Like