recently I upgraded Ubuntu from version 18.xx to 20.xx, with the surprise that wireless and sound are not available.
Below is show the details:
ID
$ uname -a; dkms status
Linux ac-ThinkPad-T440s 5.4.0-1062-gke #65-Ubuntu SMP Sun Feb 6 05:12:01 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Network
$ lshw -C network
*-network
description: Ethernet interface
product: Ethernet Connection I218-LM
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: enp0s25
version: 04
serial: 28:d2:44:8b:48:f0
size: 1Gbit/s
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k duplex=full firmware=0.6-3 ip=192.168.0.30 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:46 memory:e0600000-e061ffff memory:e063e000-e063efff ioport:3080(size=32)
*-network UNCLAIMED
description: Network controller
product: Wireless 7260
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:03:00.0
version: 83
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: latency=0
resources: memory:e0400000-e0401fff
Conf files
$ sudo ls -l /etc/modprobe.d
-rw-r--r-- 1 root root 2507 lip 31 2015 alsa-base.conf
-rw-r--r-- 1 root root 154 cze 26 2018 amd64-microcode-blacklist.conf
-rw-r--r-- 1 root root 26 lut 15 00:34 ath9k.conf
-rw-r--r-- 1 root root 325 sty 28 2018 blacklist-ath_pci.conf
-rw-r--r-- 1 root root 1518 mar 12 2020 blacklist.conf
-rw-r--r-- 1 root root 210 sty 28 2018 blacklist-firewire.conf
-rw-r--r-- 1 root root 677 kwi 9 2020 blacklist-framebuffer.conf
-rw-r--r-- 1 root root 156 lip 31 2015 blacklist-modem.conf
lrwxrwxrwx 1 root root 41 lis 28 2019 blacklist-oss.conf -> /lib/linux-sound-base/noOSS.modprobe.conf
-rw-r--r-- 1 root root 583 sty 28 2018 blacklist-rare-network.conf
-rw-r--r-- 1 root root 127 sty 22 2020 dkms.conf
-rw-r--r-- 1 root root 154 cze 20 2019 intel-microcode-blacklist.conf
-rw-r--r-- 1 root root 350 lut 15 01:33 iwlwifi.conf
iwlwifi
$ sudo nano /etc/modprobe.d/iwlwifi.conf
# /etc/modprobe.d/iwlwifi.conf
# iwlwifi will dyamically load either iwldvm or iwlmvm depending on the
# microcode file installed on the system. When removing iwlwifi, first
# remove the iwl?vm module and then iwlwifi.
#remove iwlwifi \
#(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
#&& /sbin/modprobe -r mac80211
NOTE: The conf file I edited commenting all lines, I read in a blog that might be a solution and at the end with no success.
Device
$ lspci -knn | grep Net -A3
03:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b2] (rev 83)
Subsystem: Intel Corporation Dual Band Wireless-AC 7260 [8086:c270]
I have been reading and following the Ububtu recommendations according to this Wiki article with no success.
Besides, I have read this case which is quite similar to mine and the solution was to reinstall the kernel?
No idea what does it mean, the kerner of ubuntu? the kernel of the device?
May someone of you support me in this case?
I am just considering to reinstall a previous version of UBUNTU
Thanks.
..:: =================================================== ::..
Command:
sudo apt-get install -y linux-firmware
Results:
Reading package lists... Done
Building dependency tree
Reading state information... Done
linux-firmware is already the newest version (1.187.26).
linux-firmware set to manually installed.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
