But you said yourself that "kernel 4.15.17 with linux-firmware 1.173 is
working." 4.15 is currently the only supported kernel version in 18.04.
Over time support for kernels for subsequent releases will be added via
the linux-hwe packages, and linux-firmware will be updated accordingly,
but as of
Actually the current bug report was not against Ubuntu 16.04, codename:
Xenial Xerus. It is against missing firmware for newer kernels. Actually
Ubuntu 18.04 is using already 4.15 kernel. There are even newer to come
when time goes on. At that time when tested newer kernels, the Ubuntu
16.04 LTS
The linux-firmware package for xenial contains firmware for all
supported kernel versions. You are running unsupported kernel versions,
so the firmware you need may not be present and you may need to download
it manually.
Marking this invalid since the problems only occur with unsupported
kernel
The problem persists
kernel: iwlwifi :02:00.0: enabling device ( -> 0002)
kernel: iwlwifi :02:00.0: firmware: failed to load iwlwifi-8000C-26.ucode
(-2)
kernel: iwlwifi :02:00.0: Direct firmware load for iwlwifi-8000C-26.ucode
failed with error -2
kernel: iwlwifi :02:00.0:
sorry - Linux Mint 18.3 is Ubuntu 16.04 LTS based... Unfortunately
cannot edit and fix the comment...
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https://bugs.launchpad.net/bugs/1704799
Title:
iwlwifi:
... still using 64-bit Linux Mint 18.3 MATE which is based on Ubuntu 18.04 LTS.
Updated linux-firmware package manually. Originally Ubuntu 16.04 LTS has
linux-firmware 1.157.17
Would be thankful to know, which firmware version works with which kernel
version.
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somehow I could once with kernel 4.16.2 and linux-firmware 1.173 get it
working:
kernel: iwlwifi :04:00.0: loaded firmware version 36.e91976c0.0 op_mode
iwlmvm
kernel: iwlwifi :04:00.0: Detected Intel(R) Dual Band Wireless AC 8260,
REV=0x208
...but could not reproduce it and rest of
Just for comment:
using
64-bit Ubuntu kernel 4.16.2
linux-firmware 1.173
not working...
journalctl -b | grep iwlwifi
kernel: iwlwifi :04:00.0: hwdev DMA mask = 0x000f, dev_addr =
0x290ed000
kernel: iwlwifi :04:00.0: swiotlb: coherent
It is expected that the -22.ucode file is missing because it was
deliberately removed per https://lists.ubuntu.com/archives/kernel-
team/2017-July/085667.html
The -27.ucode file was added in linux-firmware 1.165 and updated in
1.168
None of the other versions were ever released by Intel
I found I was able to resolved this by upgrading to the latest version
of iwlwifi-8000C-27.ucode. In my case, wifi was fine, but my bluetooth
was not working.
27.455470.0 => 27.541033.0
Only source I could find: https://github.com/wkennington/linux-
firmware/blob/master/iwlwifi-8000C-27.ucode
Also would like to mention that the main source for firmware is
https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/core_release
and direct link to firmware modules
https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/linux-
firmware.git/plain/
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Forgot to add that after downloading missing firmware to /lib/firmware/
folder, I used sudo depmod -a command and then reloaded the kernel
module (sudo modprobe -r iwlwifi && sudo modprobe iwlwifi).
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** Package changed: linux (Ubuntu) => linux-firmware (Ubuntu)
** Changed in: linux-firmware (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux-firmware (Ubuntu)
Status: Incomplete => Confirmed
** Changed in: linux-firmware (Ubuntu)
Assignee: (unassigned) => Seth
modinfo output with original set of modules
** Attachment added: "modinfo.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1704799/+attachment/4916214/+files/modinfo.txt
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journalctl output with original set of modules
** Attachment added: "journalctl.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1704799/+attachment/4916213/+files/journalctl.txt
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dmesg with original set of modules
** Attachment added: "dmesg.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1704799/+attachment/4916212/+files/dmesg.txt
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