Wireless Woes: iwlwifi-8265 - Ubuntu 18.04 (and Mint Tara)

I am trying to set up two machines, both have identical hardware that should be supported by the newer Linux kernels. The wireless card inside is a GIGABYTE "GC-WB867D-I" Wifi+Bluetooth. Out of the box the Bluetooth works, however the Wifi does not.

The kerenel version via: uname -r

5.0.0-31-generic

The firmware version via: modinfo iwlwifi | grep 8265

firmware: iwlwifi-8265-36.ucode

The firmware file code via: lsmod | grep iwlwifi

iwlwifi 315392 1 iwlmvm

The Network controller via: sudo lspci | grep Network

41:00.0 Network controller: Intel Corporation Wireless 8265 / 8275 (rev 78)

The more verbose Network controller via ID: sudo lspci -vnd 8086:24fd

41:00.0 0280: 8086:24fd (rev 78) Subsystem: 8086:1010 Flags: bus master, fast devsel, latency 0, IRQ 139 Memory at fa400000 (64-bit, non-prefetchable) [size=8K] Capabilities: [c8] Power Management version 3 Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [40] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [140] Device Serial Number 48-89-e7-ff-ff-4b-c6-c0 Capabilities: [14c] Latency Tolerance Reporting Capabilities: [154] L1 PM Substates Kernel driver in use: iwlwifi Kernel modules: iwlwifi, wl

And finally the most verbose via the debug script: wget -N -t 5 -T 10 && chmod +x wireless-info && ./wireless-info

Text file excerpt:

########## wireless info START ########## Report from: 14 Oct 2019 20:53 PDT -0700 Booted last: 14 Oct 2019 00:00 PDT -0700 Script from: 22 Oct 2018 03:34 UTC +0000 ##### release ########################### Distributor ID: Ubuntu Description: Ubuntu 18.04.3 LTS Release: 18.04 Codename: bionic ##### kernel ############################ Linux 5.0.0-31-generic #33~18.04.1-Ubuntu SMP Tue Oct 1 10:20:39 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux Parameters: ro, quiet, splash ##### desktop ########################### Ubuntu ##### lspci ############################# 04:00.0 Ethernet controller [0200]: Intel Corporation I211 Gigabit Network Connection [8086:1539] (rev 03) Subsystem: Gigabyte Technology Co., Ltd I211 Gigabit Network Connection [1458:e000] Kernel driver in use: igb 41:00.0 Network controller [0280]: Intel Corporation Wireless 8265 / 8275 [8086:24fd] (rev 78) Subsystem: Intel Corporation Dual Band Wireless-AC 8265 [8086:1010] Kernel driver in use: iwlwifi ##### lsusb ############################# Bus 008 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 005 Device 003: ID 05b8:3279 Agiler, Inc. Bus 005 Device 002: ID 046d:c069 Logitech, Inc. M-U0007 [Corded Mouse M500] Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 005: ID 2357:0108 Bus 001 Device 003: ID 8087:0a2b Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub ##### PCMCIA card info ################## ##### rfkill ############################ 0: hci0: Bluetooth Soft blocked: no Hard blocked: no 3: phy3: Wireless LAN Soft blocked: no Hard blocked: no ##### secure boot ####################### SecureBoot disabled Platform is in Setup Mode ##### lsmod ############################# wl 6447104 0 iwlmvm 389120 0 rtl8xxxu 126976 0 mac80211 819200 2 iwlmvm,rtl8xxxu iwlwifi 315392 1 iwlmvm wmi_bmof 16384 0 mxm_wmi 16384 1 nouveau cfg80211 679936 4 wl,iwlmvm,iwlwifi,mac80211 wmi 28672 3 wmi_bmof,mxm_wmi,nouveau ##### interfaces ######################## [/etc/network/interfaces] auto lo iface lo inet loopback etc.... etc.... ##### NetworkManager.state ############## [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true ##### NetworkManager config ############# [[/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf]] [connection] wifi.powersave = 3 [[/etc/NetworkManager/NetworkManager.conf]] [main] plugins=ifupdown,keyfile [ifupdown] managed=false [device] wifi.scan-rand-mac-address=no [[/usr/lib/NetworkManager/conf.d/10-dns-resolved.conf]] [main] dns=systemd-resolved [[/usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf]] [keyfile] unmanaged-devices=*,except:type:wifi,except:type:wwan [[/usr/lib/NetworkManager/conf.d/20-connectivity-ubuntu.conf]] [connectivity] uri= [[/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf]] [device-mac-addr-change-wifi] match-device=driver:rtl8723bs,driver:rtl8189es,driver:r8188eu,driver:8188eu,driver:eagle_sdio,driver:wl wifi.scan-rand-mac-address=no wifi.cloned-mac-address=preserve ethernet.cloned-mac-address=preserve ##### NetworkManager profiles ########### ##### Netplan config #################### [/etc/netplan/01-network-manager-all.yaml] network: version: 2 renderer: NetworkManager etc.... etc.... ##### module parameters ################# [iwlmvm] init_dbg: N power_scheme: 2 tfd_q_hang_detect: Y grep: /sys/module/rtl8xxxu/parameters/debug: Permission denied grep: /sys/module/rtl8xxxu/parameters/dma_agg_pages: Permission denied grep: /sys/module/rtl8xxxu/parameters/dma_aggregation: Permission denied grep: /sys/module/rtl8xxxu/parameters/dma_agg_timeout: Permission denied grep: /sys/module/rtl8xxxu/parameters/ht40_2g: Permission denied [rtl8xxxu] [mac80211] beacon_loss_count: 7 ieee80211_default_rc_algo: minstrel_ht max_nullfunc_tries: 2 max_probe_tries: 5 minstrel_vht_only: Y probe_wait_ms: 500 [iwlwifi] 11n_disable: 0 amsdu_size: 0 antenna_coupling: 0 bt_coex_active: Y d0i3_disable: Y d0i3_timeout: 1000 disable_11ac: N disable_11ax: N enable_ini: N fw_monitor: N fw_restart: Y lar_disable: N led_mode: 0 nvm_file: (null) power_level: 0 power_save: N remove_when_gone: N swcrypto: 0 uapsd_disable: 3 [cfg80211] bss_entries_limit: 1000 cfg80211_disable_40mhz_24ghz: N ieee80211_regdom: 00 

~EDIT~ The loading of the kernel module. sudo modprobe iwlwifi && dmesg | grep iwl

[ 5.761509] iwlwifi 0000:41:00.0: enabling device (0000 -> 0002) [ 5.765276] iwlwifi 0000:41:00.0: loaded firmware version 36.9f0a2d68.0 op_mode iwlmvm [ 5.836664] iwlwifi 0000:41:00.0: Detected Intel(R) Dual Band Wireless AC 8265, REV=0x230 [ 5.843363] iwlwifi 0000:41:00.0: swiotlb buffer is full (sz: 4096 bytes) [ 5.843367] iwlwifi 0000:41:00.0: overflow 0x0000001030d6f000+4096 of DMA mask fffffffff bus mask 0 [ 5.843377] Modules linked in: snd_pcm ucsi_ccg(+) wl(POE) aes_x86_64 snd_seq_midi crypto_simd snd_seq_midi_event iwlmvm(+) cryptd rtl8xxxu(+) glue_helper joydev input_leds typec_ucsi fjes(-) snd_rawmidi video typec mac80211 ttm iwlwifi drm_kms_helper snd_seq btusb wmi_bmof btrtl mxm_wmi btbcm snd_seq_device drm btintel snd_timer cfg80211 bluetooth fb_sys_fops snd syscopyarea sysfillrect ecdh_generic sysimgblt k10temp ccp(+) soundcore mac_hid sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_generic usbhid hid igb i2c_algo_bit nvme ahci dca i2c_piix4 nvme_core i2c_nvidia_gpu libahci gpio_amdpt wmi gpio_generic [ 5.843419] iwl_pcie_rxq_alloc_rbs+0x164/0x1d0 [iwlwifi] [ 5.843425] _iwl_pcie_rx_init+0x2bc/0x310 [iwlwifi] [ 5.843431] iwl_pcie_rx_init+0x2d/0x400 [iwlwifi] [ 5.843442] ? iwl_mvm_nic_config+0x118/0x170 [iwlmvm] [ 5.843449] iwl_trans_pcie_start_fw+0x2a1/0x6d0 [iwlwifi] [ 5.843459] ? iwl_init_notification_wait+0x6d/0xb0 [iwlwifi] [ 5.843467] iwl_mvm_load_ucode_wait_alive+0x102/0x310 [iwlmvm] [ 5.843476] iwl_run_init_mvm_ucode+0x88/0x340 [iwlmvm] [ 5.843483] ? iwl_run_init_mvm_ucode+0x88/0x340 [iwlmvm] [ 5.843490] ? iwl_wait_init_complete+0x30/0x30 [iwlmvm] [ 5.843497] iwl_op_mode_mvm_start+0x72e/0xab0 [iwlmvm] [ 5.843504] ? iwl_op_mode_mvm_start+0x72e/0xab0 [iwlmvm] [ 5.843510] _iwl_op_mode_start.isra.10+0x4c/0xa0 [iwlwifi] [ 5.843516] iwl_opmode_register+0x75/0xe0 [iwlwifi] [ 5.843525] iwl_mvm_init+0x38/0x1000 [iwlmvm] [ 6.884065] iwlwifi 0000:41:00.0: SecBoot CPU1 Status: 0x3, CPU2 Status: 0x2a58 [ 6.884069] iwlwifi 0000:41:00.0: Failed to start INIT ucode: -110 [ 6.884071] iwlwifi 0000:41:00.0: Collecting data: trigger 15 fired. [ 7.233236] iwlwifi 0000:41:00.0: Failed to run INIT ucode: -110 

What I have tried...

Replace the iwlwifi-8265-22.ucode file in /lib/firmware/ folder with the drivers from Intel. The folder contains, iwlwifi-8265 (-21), (-22), (-27), (-31), (-34), (-36) for newer kerenls I'd assume.

Changed the power settings via gedit, wifi.powersave = 3 (3) -> (2) -> (1) in file/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf

Updated, upgraded, updated kernels etc... I am usually okay at troubleshooting linux issues, however this one has me stumped. I noticed the firmware version points to iwlwifi-8265-36.ucode, while the Intel driver points to iwlwifi-8265-22.ucode. Is this the issue?

I have lost a day to this problem, and normally I can solve these issues somewhat quickly. With any luck I can solve the issue within the next day, else I will buy two new PCI cards :<. Any help is greatly appreciated, thanks!

1 Answer

Solution: To change the PCIe slot on the MoBo from the PCIe x 16, to the PCIe x 8 slot.

Because: I'm not a linux expert, so correct me if this sounds fishy. The swiotlb buffer is MoBo to chip level communication. The error of overflow 0x0000001030d6f000+4096 of DMA mask fffffffff bus mask 0 was due to the MoBo sending out a 16x mask.

Notes: Hope this can help someone!!!

Here is the hardware that was in use. MoBo and Wifi Card