Wifi fails after M7 update - iwlwifi

Wifi fails after M7 update - iwlwifi

Postby cyril » Jul 17th, '19, 22:31

My wifi stopped working after applying a group of updates to Mageia 7.
I had selected the updates as a group and not noted well what each was so it took me a while to figure out what made my WiFi completely unresponsive.

Eventually I rolled back the update of the package "iwlwifi-firmware" to the previous version and all is good now.
Version 20190603 1.mga.nonfree noarch <<< good
Version 20190709 1.mga.nonfree noarch <<< not so good

If anyone is experiencing similar problems on similar hardware this may help. Here are a few more details about my equipment and the symptoms

iwlwifi is the wireless driver for Intel's current wireless chips so this issue is probably very specific to newer Intel hardware
My hardware:
Asus Zenbook Model UX433FA-DH74
CPU Intel i7-856SU/BGA, using boot option "dis_ucode_ldr"
Network controller: Intel Corporation Cannon Point-LP CNVi [Wireless-AC] (rev 30)

After I upgraded to the newest version of iwlwifi-firmware Net_Applet did not display any available wifi networks.
I tried to remove the wifi configuration and set it upgain using Mageia Contol Panel but that did not work.
When I ran ifconfig it did not show my wlo1 interface.

ifconfig wlo1 up returned this message: SIOCSIFFLAGS: Input/output error

ip link set wlo1 up returned this message: RTNETLINK answers: Input/output error

After I uninstalled the newest version and reinstalled the earlier one wifi worked normally.
cyril
 
Posts: 3
Joined: Feb 5th, '14, 19:35

Re: Wifi fails after M7 update - iwlwifi

Postby doktor5000 » Jul 18th, '19, 00:23

Can you please add the output of lspcidrake -v please ?

Apart from that, you seem to already have reported this as a bug, right? https://bugs.mageia.org/show_bug.cgi?id=25143
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Re: Wifi fails after M7 update - iwlwifi

Postby cyril » Jul 18th, '19, 07:03

Yes, bug 25143 was entered by me. Please let me know if there is anything useful I can add.
Here is the requested output;

Code: Select all
[root@localhost cyril_11]# lspcidrake -v
i2c_i801        : Intel Corporation|Cannon Point-LP SMBus Controller [SERIAL_SMBUS] (vendor:8086 device:9da3 subv:1043 subd:1461) (rev: 30)
xhci_pci        : Intel Corporation|Cannon Point-LP USB 3.1 xHCI Controller [SERIAL_USB] (vendor:8086 device:9ded subv:1043 subd:201f) (rev: 30)
Card:Intel 810 and later: Intel Corporation|UHD Graphics 620 (Whiskey Lake) [DISPLAY_VGA] (vendor:8086 device:3ea0 subv:1043 subd:1461)
unknown         : Intel Corporation|Cannon Point-LP Shared SRAM [MEMORY_RAM] (vendor:8086 device:9def subv:8086 subd:7270) (rev: 30)
unknown         : Intel Corporation|Cannon Point-LP PCI Express Root Port #9 [BRIDGE_PCI] (vendor:8086 device:9db0) (rev: f0)
intel_lpss_pci  : Intel Corporation|Cannon Point-LP Serial IO I2C Controller #0 (vendor:8086 device:9de8 subv:1043 subd:1461) (rev: 30)
unknown         : Intel Corporation|Cannon Point-LP PCI Express Root Port #13 [BRIDGE_PCI] (vendor:8086 device:9db4) (rev: f0)
intel_pch_thermal: Intel Corporation|Cannon Point-LP Thermal Controller [SIGNAL_OTHER] (vendor:8086 device:9df9 subv:1043 subd:1461) (rev: 30)
unknown         : Intel Corporation|Device 3e34 [BRIDGE_HOST] (vendor:8086 device:3e34 subv:1043 subd:1461) (rev: 0b)
snd_hda_intel   : Intel Corporation|Cannon Point-LP High Definition Audio Controller [MULTIMEDIA_AUDIO_DEV] (vendor:8086 device:9dc8 subv:1043 subd:16ce) (rev: 30)
intel_lpss_pci  : Intel Corporation|Device 9da8 [COMMUNICATION_OTHER] (vendor:8086 device:9da8 subv:1043 subd:1461) (rev: 30)
unknown         : Intel Corporation|Cannon Point-LP SPI Controller (vendor:8086 device:9da4 subv:8086 subd:7270) (rev: 30)
intel_lpss_pci  : Intel Corporation|Device 9daa (vendor:8086 device:9daa subv:1043 subd:1461) (rev: 30)
mei_me          : Intel Corporation|Cannon Point-LP MEI Controller #1 [COMMUNICATION_OTHER] (vendor:8086 device:9de0 subv:1043 subd:1461) (rev: 30)
iwlwifi         : Intel Corporation|Cannon Point-LP CNVi [Wireless-AC] [NETWORK_OTHER] (vendor:8086 device:9df0 subv:8086 subd:0034) (rev: 30)
processor_thermal_device: Intel Corporation|Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem [SIGNAL_OTHER] (vendor:8086 device:1903 subv:1043 subd:1461) (rev: 0b)
unknown         : Sandisk Corp|WD Black 2018/PC SN520 NVMe SSD (vendor:15b7 device:5003) (rev: 01)
unknown         : Intel Corporation|Cannon Point-LP LPC Controller [BRIDGE_ISA] (vendor:8086 device:9d84 subv:1043 subd:1461) (rev: 30)
intel_lpss_pci  : Intel Corporation|Cannon Point-LP Serial IO I2C Controller #1 (vendor:8086 device:9de9 subv:1043 subd:1461) (rev: 30)
unknown         : Intel Corporation|Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th Gen Core Processor Gaussian Mixture Model [SYSTEM_OTHER] (vendor:8086 device:1911 subv:1043 subd:1461)
hub             : Linux 5.1.14-desktop-1.mga7 xhci-hcd|xHCI Host Controller [Hub|Unused|Full speed (or root) hub] (vendor:1d6b device:0002)
uvcvideo        : Azurewave|USB2.0 HD IR UVC WebCam [Video|Video Control] (vendor:13d3 device:56cb)
btusb           : Intel Corp.|Unknown [Wireless|Radio Frequency|Bluetooth] (vendor:8087 device:0aaa)
hub             : Linux 5.1.14-desktop-1.mga7 xhci-hcd|xHCI Host Controller [Hub|Unused|Full speed (or root) hub] (vendor:1d6b device:0003)
hid_generic     : ELAN1401:00 04F3:30DC
Last edited by isadora on Jul 18th, '19, 07:18, edited 1 time in total.
Reason: Placed command-output in between [CODE]-tags for better readability ;)
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Re: Wifi fails after M7 update - iwlwifi

Postby doktor5000 » Jul 18th, '19, 23:52

cyril wrote:Please let me know if there is anything useful I can add.

[...]

iwlwifi : Intel Corporation|Cannon Point-LP CNVi [Wireless-AC] [NETWORK_OTHER] (vendor:8086 device:9df0 subv:8086 subd:0034) (rev: 30)


Please at least add this line or the whole lspcidrake -v output to the bugreport for completeness sake, as it helps to understand which PCI vendor / product ID's (the numbers marked in bold) are affected.
Cauldron is not for the faint of heart!
Caution: Hot, bubbling magic inside. May explode or cook your kittens!
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Disclaimer: Beware of allergic reactions in answer to unconstructive complaint-type posts
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Posts: 14921
Joined: Jun 4th, '11, 10:10
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