Hi. Thanks for the suggestion. But what wifi speeds are you getting without
11n enabled?

On Thu, Oct 14, 2021, 20:10 Dan <1906...@bugs.launchpad.net> wrote:

> You could try to disable 11n with the 8 option: `11n_disable=8`. It
> worked for me.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1906273
>
> Title:
>   iwlwifi - very slow for intel 9260/9560 wireless cards
>
> Status in linux-firmware package in Ubuntu:
>   Confirmed
>
> Bug description:
>   I have tried 2 intel wifi cards (9260 and previously 9560, which i
>   thought was broken) in my msi GF63 laptop. Both cards work fine when
>   using windows, getting me a speed of 450 mbps consistently.
>
>   But when using linux with ubuntu 20.04, this speed is reduced to max
>   25 mbps (using the same 5G network).
>
>   I'm using iwlwifi-9260-th-b0-jf-b0-46.ucode and kernel 5.6.19.
>
>   I have tried with a previous version of the driver
>   (iwlwifi-9260-th-b0-jf-b0-34.ucode), but unfortunately gave me the
>   same result. I have also tried different kernels (5.4.0 that came with
>   ubuntu 20.04 and also 5.3.18), to no avail.
>
>   I've also tried fiddling with settings in /etc/modprobe.d/iwlwifi-
>   opt.conf
>
>   options iwlwifi 11n_disable=1
>   options iwlwifi swcrypto=0
>   options iwlwifi bt_coex_active=0
>   options iwlwifi power_save=0
>   options iwlwifi uapsd_disable=1
>   options iwlmvm power_scheme=1
>
>   These seem to get me the 'best' results, of merely 25 mbps.
>
>   windows, when getting 450 mbps, uses this driver version 22.0.0.6
>   (https://downloadcenter.intel.com/download/29902)
>
>   I have disabled power-management so i don't think it's a power save
>   issue like someone else suggested.
>
>   From iw and iwconfig, the max bit rate seems to be 54.0 Mbps, but the
>   card can surely do much faster.
>
>   Any idea on how to fix this? Please let me know if more info is
>   needed. Thanks!
>
>   dmesg | grep iwl
>   [    2.287446] iwlwifi 0000:04:00.0: enabling device (0000 -> 0002)
>   [    2.301450] iwlwifi 0000:04:00.0: Found debug destination:
> EXTERNAL_DRAM
>   [    2.301452] iwlwifi 0000:04:00.0: Found debug configuration: 0
>   [    2.301710] iwlwifi 0000:04:00.0: loaded firmware version
> 46.6bf1df06.0 9260-th-b0-jf-b0-46.ucode op_mode iwlmvm
>   [    2.356367] iwlwifi 0000:04:00.0: Detected Intel(R) Wireless-AC 9260
> 160MHz, REV=0x324
>   [    2.370323] iwlwifi 0000:04:00.0: Applying debug destination
> EXTERNAL_DRAM
>   [    2.370983] iwlwifi 0000:04:00.0: Allocated 0x00400000 bytes for
> firmware monitor.
>   [    2.429183] iwlwifi 0000:04:00.0: base HW address: f2:ac:12:fa:47:6f
>   [    2.496763] ieee80211 phy0: Selected rate control algorithm
> 'iwl-mvm-rs'
>   [    2.509009] iwlwifi 0000:04:00.0 wlp4s0: renamed from wlan0
>   [    3.401664] iwlwifi 0000:04:00.0: Applying debug destination
> EXTERNAL_DRAM
>   [    3.515240] iwlwifi 0000:04:00.0: Applying debug destination
> EXTERNAL_DRAM
>   [    3.585957] iwlwifi 0000:04:00.0: FW already configured (0) -
> re-configuring
>
>
>   iw list
>   Wiphy phy0
>         max # scan SSIDs: 20
>         max scan IEs length: 464 bytes
>         max # sched scan SSIDs: 20
>         max # match sets: 11
>         max # scan plans: 2
>         max scan plan interval: 65535
>         max scan plan iterations: 254
>         Retry short limit: 7
>         Retry long limit: 4
>         Coverage class: 0 (up to 0m)
>         Device supports RSN-IBSS.
>         Device supports AP-side u-APSD.
>         Device supports T-DLS.
>         Supported Ciphers:
>                 * WEP40 (00-0f-ac:1)
>                 * WEP104 (00-0f-ac:5)
>                 * TKIP (00-0f-ac:2)
>                 * CCMP-128 (00-0f-ac:4)
>                 * GCMP-128 (00-0f-ac:8)
>                 * GCMP-256 (00-0f-ac:9)
>                 * CMAC (00-0f-ac:6)
>                 * GMAC-128 (00-0f-ac:11)
>                 * GMAC-256 (00-0f-ac:12)
>         Available Antennas: TX 0x3 RX 0x3
>         Configured Antennas: TX 0x3 RX 0x3
>         Supported interface modes:
>                  * IBSS
>                  * managed
>                  * AP
>                  * AP/VLAN
>                  * monitor
>                  * P2P-client
>                  * P2P-GO
>                  * P2P-device
>         Band 1:
>                 Bitrates (non-HT):
>                         * 1.0 Mbps
>                         * 2.0 Mbps (short preamble supported)
>                         * 5.5 Mbps (short preamble supported)
>                         * 11.0 Mbps (short preamble supported)
>                         * 6.0 Mbps
>                         * 9.0 Mbps
>                         * 12.0 Mbps
>                         * 18.0 Mbps
>                         * 24.0 Mbps
>                         * 36.0 Mbps
>                         * 48.0 Mbps
>                         * 54.0 Mbps
>                 Frequencies:
>                         * 2412 MHz [1] (22.0 dBm)
>                         * 2417 MHz [2] (22.0 dBm)
>                         * 2422 MHz [3] (22.0 dBm)
>                         * 2427 MHz [4] (22.0 dBm)
>                         * 2432 MHz [5] (22.0 dBm)
>                         * 2437 MHz [6] (22.0 dBm)
>                         * 2442 MHz [7] (22.0 dBm)
>                         * 2447 MHz [8] (22.0 dBm)
>                         * 2452 MHz [9] (22.0 dBm)
>                         * 2457 MHz [10] (22.0 dBm)
>                         * 2462 MHz [11] (22.0 dBm)
>                         * 2467 MHz [12] (22.0 dBm)
>                         * 2472 MHz [13] (22.0 dBm)
>                         * 2484 MHz [14] (disabled)
>         Band 2:
>                 Bitrates (non-HT):
>                         * 6.0 Mbps
>                         * 9.0 Mbps
>                         * 12.0 Mbps
>                         * 18.0 Mbps
>                         * 24.0 Mbps
>                         * 36.0 Mbps
>                         * 48.0 Mbps
>                         * 54.0 Mbps
>                 Frequencies:
>                         * 5180 MHz [36] (22.0 dBm) (no IR)
>                         * 5200 MHz [40] (22.0 dBm) (no IR)
>                         * 5220 MHz [44] (22.0 dBm) (no IR)
>                         * 5240 MHz [48] (22.0 dBm) (no IR)
>                         * 5260 MHz [52] (22.0 dBm) (no IR, radar detection)
>                         * 5280 MHz [56] (22.0 dBm) (no IR, radar detection)
>                         * 5300 MHz [60] (22.0 dBm) (no IR, radar detection)
>                         * 5320 MHz [64] (22.0 dBm) (no IR, radar detection)
>                         * 5340 MHz [68] (disabled)
>                         * 5360 MHz [72] (disabled)
>                         * 5380 MHz [76] (disabled)
>                         * 5400 MHz [80] (disabled)
>                         * 5420 MHz [84] (disabled)
>                         * 5440 MHz [88] (disabled)
>                         * 5460 MHz [92] (disabled)
>                         * 5480 MHz [96] (disabled)
>                         * 5500 MHz [100] (22.0 dBm) (no IR, radar
> detection)
>                         * 5520 MHz [104] (22.0 dBm) (no IR, radar
> detection)
>                         * 5540 MHz [108] (22.0 dBm) (no IR, radar
> detection)
>                         * 5560 MHz [112] (22.0 dBm) (no IR, radar
> detection)
>                         * 5580 MHz [116] (22.0 dBm) (no IR, radar
> detection)
>                         * 5600 MHz [120] (22.0 dBm) (no IR, radar
> detection)
>                         * 5620 MHz [124] (22.0 dBm) (no IR, radar
> detection)
>                         * 5640 MHz [128] (22.0 dBm) (no IR, radar
> detection)
>                         * 5660 MHz [132] (22.0 dBm) (no IR, radar
> detection)
>                         * 5680 MHz [136] (22.0 dBm) (no IR, radar
> detection)
>                         * 5700 MHz [140] (22.0 dBm) (no IR, radar
> detection)
>                         * 5720 MHz [144] (22.0 dBm) (no IR, radar
> detection)
>                         * 5745 MHz [149] (22.0 dBm) (no IR)
>                         * 5765 MHz [153] (22.0 dBm) (no IR)
>                         * 5785 MHz [157] (22.0 dBm) (no IR)
>                         * 5805 MHz [161] (22.0 dBm) (no IR)
>                         * 5825 MHz [165] (22.0 dBm) (no IR)
>                         * 5845 MHz [169] (disabled)
>                         * 5865 MHz [173] (disabled)
>                         * 5885 MHz [177] (disabled)
>                         * 5905 MHz [181] (disabled)
>
>   iwconfig
>   wlp4s0    IEEE 802.11  ESSID:"UniFi"
>             Mode:Managed  Frequency:5.22 GHz  Access Point:
> 34:85:C2:CE:2F:9B
>             Bit Rate=54 Mb/s   Tx-Power=22 dBm
>             Retry short limit:7   RTS thr:off   Fragment thr:off
>             Power Management:off
>             Link Quality=70/70  Signal level=-40 dBm
>             Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
>             Tx excessive retries:0  Invalid misc:300   Missed beacon:0
>   ---
>   ProblemType: Bug
>   ApportVersion: 2.20.11-0ubuntu27.13
>   Architecture: amd64
>   AudioDevicesInUse:
>    USER        PID ACCESS COMMAND
>    /dev/snd/controlC0:  dries      1521 F.... pulseaudio
>   CasperMD5CheckResult: skip
>   CurrentDesktop: ubuntu:GNOME
>   Dependencies:
>
>   DistroRelease: Ubuntu 20.04
>   InstallationDate: Installed on 2020-03-01 (277 days ago)
>   InstallationMedia: Ubuntu 18.04.4 LTS "Bionic Beaver" - Release amd64
> (20200203.1)
>   Lsusb:
>    Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
>    Bus 001 Device 002: ID 8087:0025 Intel Corp.
>    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>   Lsusb-t:
>    /:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/8p, 10000M
>    /:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/16p, 480M
>        |__ Port 14: Dev 2, If 0, Class=Wireless, Driver=btusb, 12M
>        |__ Port 14: Dev 2, If 1, Class=Wireless, Driver=btusb, 12M
>   MachineType: Micro-Star International Co., Ltd. GF63 Thin 9SC
>   Package: linux-firmware 1.187.4
>   PackageArchitecture: all
>   ProcFB: 0 i915drmfb
>   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-56-generic
> root=UUID=8aae6251-192d-4870-97c8-2a1a1163160c ro quiet splash vt.handoff=7
>   ProcVersionSignature: Ubuntu 5.4.0-56.62-generic 5.4.73
>   RelatedPackageVersions:
>    linux-restricted-modules-5.4.0-56-generic N/A
>    linux-backports-modules-5.4.0-56-generic  N/A
>    linux-firmware                            1.187.4
>   Tags:  focal
>   Uname: Linux 5.4.0-56-generic x86_64
>   UpgradeStatus: Upgraded to focal on 2020-10-28 (36 days ago)
>   UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
>   _MarkForUpload: True
>   dmi.bios.date: 03/26/2020
>   dmi.bios.vendor: American Megatrends Inc.
>   dmi.bios.version: E16R3IMS.108
>   dmi.board.asset.tag: Default string
>   dmi.board.name: MS-16R3
>   dmi.board.vendor: Micro-Star International Co., Ltd.
>   dmi.board.version: REV:1.0
>   dmi.chassis.asset.tag: Default string
>   dmi.chassis.type: 10
>   dmi.chassis.vendor: Micro-Star International Co., Ltd.
>   dmi.chassis.version: Default string
>   dmi.modalias:
> dmi:bvnAmericanMegatrendsInc.:bvrE16R3IMS.108:bd03/26/2020:svnMicro-StarInternationalCo.,Ltd.:pnGF63Thin9SC:pvrREV1.0:rvnMicro-StarInternationalCo.,Ltd.:rnMS-16R3:rvrREV1.0:cvnMicro-StarInternationalCo.,Ltd.:ct10:cvrDefaultstring:
>   dmi.product.family: GF
>   dmi.product.name: GF63 Thin 9SC
>   dmi.product.sku: 16R3.1
>   dmi.product.version: REV:1.0
>   dmi.sys.vendor: Micro-Star International Co., Ltd.
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1906273/+subscriptions
>
>

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https://bugs.launchpad.net/bugs/1906273

Title:
  iwlwifi - very slow for intel 9260/9560 wireless cards

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