I just bought the Trainz 2022 Platinum Edition (or "TRS22PE") and for some reason it freezes on launch. No combination of any Proton version and/or launch options helps. Changing these does make it freeze at different times/show different things, but it's not really a difference at all.

I tried to make this come across in my video. I also have a kernel log from some time after I had recorded it (the sudo dmesg one if that makes any sense). I believe I showed it in the video, but opening the other window for the Content Store also is a problem, as the Content Store window only refreshes/shows most of the screen whenever I minimize/maximize the window. I say most of the screen because the scroll thing on the side still works and the background audio on the main menu after the launcher plays. Is this even fixable? This is on Ubuntu 24.04.4 LTS. Also, changing to Xorg and X11 instead of Wayland didn't help, either.

youtube video of problem

I'm on Ubuntu 24.04 LTS and have my Canon LBP2900 printer connected through a USB port. I first installed the driver after getting it from: https://printerdrivers.com/canon-lbp2900b-driver/ The printer performs well on my Ubuntu system. Now I want to share it with other computers in my local network, even those running Windows. What is the best approach to share a Canon LBP2900 from Ubuntu so that other devices can print to it?

I am a happy user of the 1password password manager on an Ubuntu 26.04 desktop. Except - I need to type my very long master password every time I unlock the browser (Firefox) 1password extension, which is annoying.

I would like to use my Yubikey Nano 5.x series to unlock the 1password browser extension with passwordless authentication. I'd like to be able to just touch my Yubikey and be logged on to 1password in the browser. Is this feasible?

The closest I've managed to get to is to have the 1password desktop application (not browser extension) use my Yubikey as a second factor after I provide the master password. It's not very close to where I want to be, but at least it shows that 1password can use my Yubikey as an authentication factor.

To do that, I uninstalled the snap version of the 1password desktop app, installed the 1password desktop app from https://support.1password.com/install-linux/#debian-or-ubuntu and enabled "system authentication". I had already enrolled my Yubikey as a second factor in my 1password account, as I access the password vault from multiple computers.

Is my desirable setup possible on Ubuntu 26.04 and has anyone managed to get it to work?

My Ubuntu 20.04.6 LTS was updated itself automatically and asked to be rebooted. I let it do so. It booted very slowly. If I run

systemd-analyze
Startup finished in 17.865s (firmware) + 13.633s (loader) + 1min 49.055s (kernel) + 5min 18.512s (userspace) = 7min 39.067s 
graphical.target reached after 2min 19.851s in userspace

My Virtual machine does not start automatically any more and I don't see my phone in Files, when connected by USB.
Before my machine restarted about 1 minute. Now it take 5 minutes.

Fortunately Android Studio can see my phone by USB, so I can continue developing and test apps with it, even if Files does not show my phone.

Any ideas, what causes this this slow booting now and why mount phone can't be seen in Files any more.

I bought a second hand ASUS M509DA laptop. I installed Kubuntu-Kde on it and I updated and upgraded the system to Kubuntu 26.04 LTS. There is a keyboard problem that I can´t resolve. All the special characters are on different keys than expected. The problem is maybe that there is only ONE Asus keyboard on the whole list of keyboard definitions, called ASUS laptop. I can´t produce any diakritical characters either, nor use ALT-. I hope somebody has suggestions on how to solve this. Thanks in advance.

I ran killall -3 gnome-shell because I was trying to troubleshoot something. Now the entire screen is TV static and it won't even show me anything. I tried hard resetting and even running it in recovery mode, rebooting it from the terminal as well. Now it's just a black screen.

My system details:

• Ubuntu 26.04

• Asus ROG STRIX GL702VM

• NVIDIA 1060 6GB

I'm new to Linux. I'm running Ubuntu 24.04.4 on a desktop computer. When updates happen I keep getting an error message that the update failed.

I have run sudo apt-get install -f and sudo apt autoremove. I get the following error message from both:

Sourcing file `/etc/default/grub'
/usr/sbin/grub-mkconfig: 1: /etc/default/grub: Syntax error: ")" unexpected
run-parts: /etc/kernel/postrm.d/zz-update-grub exited with return code 2
dpkg: error processing package linux-image-6.17.0-19-generic (--remove):
 installed linux-image-6.17.0-19-generic package post-removal script subprocess returned error exit status 2
dpkg: too many errors, stopping
Errors were encountered while processing:
  linux-image-6.17.0-19-generic
Processing was halted because there were too many errors.
E: Sub-process /usr/bin/dpkg returned an error code (1)

I have looked at the grub file in /etc/default/grub and it shows:

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`( . /etc/os-release; echo ${NAME:-Ubuntu} ) 2>/dev/null || echo Ubuntu`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

It seems the issue is in the GRUB_DISTRIBUTOR= line, but according to what I've found on the internet the line looks OK from a syntax standpoint.

I'm not sure why my askubuntu account seems to have been reset. I have had my launchpad account since 2013, and I have been submitting bugs since Ubuntu 10.

Either way, I noticed in the settings program, under Power, and Power Saving, it lists "Dim Screen" however, it does not list a changable timeout value for how long it takes for the screen to dim.

I would like to see the ability to change this setting via GUI, maybe have a drop down option under "Dim Screen" that is dynamic, and pops up once you toggle the option "Dim Screen"

I think that having a set list of values (30 seconds, a minute, five minutes) as opposed to a dynamic user set value field might be best.

Illustration of the settings applet.

Also, I know I posted in the wrong section, it won't let me post in the feature request forum even though I have had my account since 2013.....

Screen sharing used to be simple, but since Ubuntu 26.04 uses GNOME without X11 support, only Wayland, the situation changed. Wayland is more secure than X11 and makes it harder for one app access the contents of other apps windows.

If I try to share the screen in Firefox (149.0.2, distributed with Ubuntu), the following happens: first, a dialog appears:

I click on "Allow", select the display to share, briefly a screen sharing icon appears in the GNOME toolbar:

and then disappears. Screen is not shared. The same thing happens if I try to share a window, even a Firefox Window. How can you share a screen with Teams in Firefox on Ubuntu 26.04?

Ubuntu 25.10, USB-printer Brother DCP-L2530DW. This printer worked on this system when I still uses wayland. I moved back to X for compatibility with both hard- and software. Since then the printer can be found, but nothing gets sent to it. I juggled around with cups ind brother-drivers and am just getting deeper in a mess. So how can I remove all printer-related material from Ubuntu, and what do I then need to make it use this printer properly?

can I update from 24.04.4 LTS to newest version yet? If not when will 26.04.01 LTS be available

I have a new ThinkPad-E16-Gen-3, bought without any OS, on which I put Ubuntu 24.04.3 LTS. My CPU is Intel Core 3 100U × 8.

While sound works from the laptop's integrated speaker, no sound whatsoever has ever come out of my (otherwise working) headphones/earplugs - and this, despite them being recognized by the system when I test the sound in vain.

Following advice on this website, I checked the codec and this is what I got:

My input:

~$ grep "Codec:" /proc/asound/card*/codec*

My terminal’s output:

/proc/asound/card0/codec#0:Codec: Conexant SN6140
/proc/asound/card0/codec#2:Codec: Intel Raptor Lake P HDMI

How can I fix this? I can't code, just copy and paste the right input on my terminal if I have clear instructions.

I am using Ubuntu 26.04. Whenever I open any app, after few seconds the app freezes and a force quit pop-up notification shows up frequently.

i had tried first to boot from live usb (gpt partition). removed quiet splash, modified nomodeset etc, tried the safe graphics and normal mode.

it resulted in a black lit up screen, nothing appears after the grub menu.

then i switched to MBR partition, enabled CSM and legacy boot. doesn't work too, same black screen.

secure boot and fast boot are disabled. my PC uses AMD processor, how to make it work? previously i managed to get ubuntu 26.04 but as i need to run ROS Foxy, i deleted it and wanted to switch to 20.04. thanks.

I'm on Ubuntu 24.04 and I have the 9.something version of Wine installed. I have a few games which require running a .bat file (since it wasn't made for Linux) in order to work. When I try to right-click -> Open with wine installer, nothing happens. Then I tried this:

~$ wine cmd.exe /c home/myself/Downloads/thegamefiles/Start—thegame.bat

I got this result:

007c:err:ntoskrnl:ZwLoadDriver failed to create driver L"\\Registry\\Machine\\System\\CurrentControlSet\\Services\\winebth": c0000135
Can't recognize '/home/myself/Downloads/thegamefiles/Start—thegame.bat' as 
an internal or external command, or batch script.

What is the problem and how can I get this to work?

I also tried to make a .sh copy of the file (with #!/bin/bash instead of @echo off), but the terminal tells me command not found for every line. edit: As asked I made this output on the terminal

~$ ls -l /home/myself/Downloads/thegamefiles/Start—thegame.bat

And I got this:

ls: cannot access '/home/myself/Downloads/thegamefiles/Start—thegame.bat': No such file or driectory

And I can also give the code inside the bat file :

@echo off
title title of the game
echo.
echo   ++++++++++++++++++++++++++++++++++
echo          title of the game
echo         the game
echo   ++++++++++++++++++++++++++++++++++
echo.
echo   Opening browser...
START http://127.0.0.1:29595/
echo   Starting server...
echo.
echo   Closing this window will stop the server
"server/miniweb.exe" -p 29595 -i 127.0.0.1 -r game/thegame >nul 2>&1
echo.
echo   Shutting down...
echo.

I'm running Ubuntu Studio 26.04, and have had a problem with the keyboard and mouse responding very slowly. Also when playing video on Firefox the picture is very jerky and appears to be running at a very low frame rate, 2 or 3 fps.

I think the hardware is OK as I can run Firefox from a live USB stick, and everything runs as it should.

While I was running the live distro I checked the filesystem using fsck -f /dev/sda5. It found a couple of errors with an inode (something about a wide tree) which I fixed. When I rebooted into Ubuntu it was just as slow.

This is what my system reports:

Operating System: Ubuntu Studio 26.04
KDE Plasma Version: 6.6.4
KDE Frameworks Version: 6.24.0
Qt Version: 6.10.2
Kernel Version: 7.0.0-22-generic (64-bit)
Graphics Platform: Wayland
Processors: 4 × AMD FX(tm)-4100 Quad-Core Processor
Memory: 32 GiB of RAM (23.2 GiB usable)
Graphics Processor: AMD RS780

Unfortunately I don't know what software was updated when the problems started.

I haven't seen any similar faults reported. Where should I start looking?

I have installed Ubuntu 23.10, not LTS, but recently when I updated, I see that I have the LTS version installed. Was this release upgrade done on purpose by Ubuntu? What is the deal with this?

I have been using BackupPC for very many years. I have 2 backup systems (belt and braces) backing up about 25 clients of various sorts all running Linux in various flavours. All the backups use rsync for the backups,

Currently both BackupPCs are Raspberry Pi5s running RaspiOS. Both have the same problem, so I think the problem lies with the Clients, not the Hosts.

BackupPC is Version 4.4.0-8
rsync_bpc version 3.1.3.0

I recently changed the OS on my PC and Laptop to Kubuntu 26.04 (previously running Gentoo with BackupPC working fine) and have the same sudo settings as before. I have no Firewall running. I picked the main command out and issued it from the command line with -vvv added and I get this:

/usr/libexec/backuppc-rsync/rsync_bpc -vvv --bpc-top-dir /var/lib/backuppc --bpc-host-name scorpio --bpc-share-name / --bpc-bkup-num 24 --bpc-bkup-comp 3 --bpc-bkup-prevnum -1 --bpc-bkup-prevcomp -1 --bpc-bkup-inode0 6677154 --bpc-log-level 1 --bpc-attrib-new -e /usr/bin/ssh\ -l\ backuppc --rsync-path=/usr/bin/sudo\ \ /usr/bin/rsync --super --recursive --protect-args --numeric-ids --perms --owner --group -D --times --links --hard-links --delete --delete-excluded --one-file-system --partial --log-format=log:\ %o\ %i\ %B\ %8U,%8G\ %9l\ %f%L --stats --timeout=72000 --exclude=/proc --exclude=/dev --exclude=/cdrom --exclude=/media --exclude=/floppy --exclude=/lost+found --exclude=/sys --exclude=/tmp --exclude=\*~\* --exclude=\*.iso --exclude=/home/francis/storage --exclude=.cache --exclude=.Trash\* 10.6.10.10:/ /

opening connection using: /usr/bin/ssh -l backuppc 10.6.10.10 "/usr/bin/sudo  /usr/bin/rsync" --server --sender -svvvlHogDtprxe.iLsfxC  (8 args)
protected args: --timeout=72000 --numeric-ids . /  (4 args)
sudo: A terminal is required to authenticate
rsync_bpc: connection unexpectedly closed (0 bytes received so far) [Receiver]
Done: 0 errors, 0 filesExist, 0 sizeExist, 0 sizeExistComp, 0 filesTotal, 0 sizeTotal, 0 filesNew, 0 sizeNew, 0 sizeNewComp, 6677154 inode
rsync error: error in rsync protocol data stream (code 12) at io.c(226) [Receiver=3.1.3.0]
[Receiver] _exit_cleanup(code=12, file=io.c, line=226): about to call exit(12)

The ssh keys work fine using the client name or the IP address. I can ssh in without a password. I can run a simple rsync command from the host to the client and rsync a folder from /etc/ from the client, no problem. I have this in my sudoers file, same as all the other clients:

backuppc  ALL=(root) NOPASSWD: /usr/bin/rsync  --server --sender *

I have also tried this simpler version:

backuppc  ALL=NOPASSWD: /usr/bin/rsync

I have disabled %admin and %sudo and have User_Alias instead, but the error is the same. What is it about Kubuntu 26.04 that can be causing this?

I'm using Ubuntu 24.04 and it freezes regularly. The mouse and keyboard stops responding so I can't even open a terminal.

I don't know what to do or how to identify the problem...

Hardware specifications :

• Kernel : 6.17.0-29-generic
• Distro : Ubuntu 24.04.4
• CPU : Intel Core i5-4460
• Graphics : NVIDIA GM107 [GeForce GTX 750 Ti]

I am currently using QCN9274(compex WLE7002E25) to test monitor mode, according to ‘iw phy’, it does support monitor mode. It appears I have successfully set it up, but I haven't been able to capture any data packages with tcpdump.

jack@jack-pc:~/Desktop$ iw dev
phy#1
    Interface mon12
        ifindex 5
        wdev 0x100000002
        addr 04:f0:21:c5:1b:99
        type monitor
    Interface wlan1
        ifindex 4
        wdev 0x100000001
        addr 04:f0:21:c5:1b:99
        type managed
        multicast TXQ:
            qsz-byt qsz-pkt flows   drops   marks   overlmt hashcoltx-bytes tx-packets
            0   0   0   0   0   0   0   00
phy#0
    Interface wlp1s0
        ifindex 3
        wdev 0x1
        addr 04:f0:21:c5:1b:98
        type managed
        multicast TXQ:
            qsz-byt qsz-pkt flows   drops   marks   overlmt hashcoltx-bytes tx-packets
            0   0   0   0   0   0   0   00

jack@jack-pc:~/Desktop$ sudo tcpdump -i mon12 -w ath12k.pcap
tcpdump: listening on mon12, link-type IEEE802_11_RADIO (802.11 plus radiotap header), snapshot length 262144 bytes
^C0 packets captured
0 packets received by filter
0 packets dropped by kernel

jack@jack-pc:~/Desktop$ uname -a
Linux jack-pc 6.18.7-061807-generic #202601231045 SMP PREEMPT_DYNAMIC Fri Jan 23 11:25:00 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux

Does anyone know why?

After an update, now the caps lock is also used to switch language keyboard (rather than Super key+space) which is super annoying. I have not found a way to disable it in the keyboard shortcuts. Can anyone help?

Thanks a lot

I am running Xubuntu 17.10, I upgraded from 17.04. When I open laptop lid, it stays in blank screen. Power is on, wired mouse doesn't get power, it doesn't respond to anything. I tried pressing keys and pressing power button. I always have to restart my laptop to use it. Xfce Power Manager says that it locks screen when lid is closed.

I've started to use snap, but I couldn't find all features I had with dpkg.

1. How to find which snap provides a given file (dpkg -S)?
2. How to find which snap will provide a given file (apt-file search)?
3. How to find list of files in a given snap (dpkg -L)?

Thanks.

I'm running Ubuntu 16.10 with Qt4.8.7 and I'd like to install Qt5 in order to compile a package. I installed qt5-qmake from the repo, and set the default to qt5:

export QT_SELECT=qt5
./configure && make
...fatal error: QtCore/QTextCodec: No such file or directory

So the package wouldn't compile, apparently because of an include statement:

include "<"QtCore/QtGlobal

for which I think I need the development environment. First, I tried to install it from the Qt site, by downloading qt-opensource-linux-x64-5.6.1.run, then I tried to install qtbase5-dev from Synaptic.

That didn't work because of unmet dependencies. All the installed files mentioned are ubuntu7-2 versions from the main Ubuntu Yakkety repo; the required ubuntu6-4 versions are also available. They are also used in a great many other packages which I can't afford to break.

$ sudo aptitude install qtbase5-dev
The following NEW packages will be installed: libegl1-mesa-dev{a} libgles2-mesa-dev{a} libglu1-mesa-dev{a} libmirclient-dev{ab} libmircommon-dev{ab} libmircookie-dev{ab} libprotobuf-dev{a} libqt5opengl5-dev{ab} libwayland-bin{a} libwayland-dev{a} libxkbcommon-dev{a} qt5-qmake{a} qtbase5-dev{b} qtbase5-dev-tools{a} 
0 packages upgraded, 14 newly installed, 0 to remove and 8 not upgraded.
Need to get 4,473 kB of archives. After unpacking 33.6 MB will be used.
The following packages have unmet dependencies:
 libqt5opengl5-dev : Depends: libqt5opengl5 (= 5.6.1+dfsg-3ubuntu6~4) but 5.6.1+dfsg-3ubuntu7~2 is installed
 libmirclient-dev : Depends: libmirclient9 (= 0.24.0+16.10.20160815.3-0ubuntu2) but 0.24.1+16.10.20160928-0ubuntu1 is installed
 libmircommon-dev : Depends: libmircommon6 (= 0.24.0+16.10.20160815.3-0ubuntu2) but 0.24.1+16.10.20160928-0ubuntu1 is installed
 qtbase5-dev : Depends: libqt5concurrent5 (= 5.6.1+dfsg-3ubuntu6~4) but 5.6.1+dfsg-3ubuntu7~2 is installed
               Depends: libqt5core5a (= 5.6.1+dfsg-3ubuntu6~4) but 5.6.1+dfsg-3ubuntu7~2 is installed
               Depends: libqt5dbus5 (= 5.6.1+dfsg-3ubuntu6~4) but 5.6.1+dfsg-3ubuntu7~2 is installed
               Depends: libqt5gui5 (= 5.6.1+dfsg-3ubuntu6~4) but 5.6.1+dfsg-3ubuntu7~2 is installed
               Depends: libqt5network5 (= 5.6.1+dfsg-3ubuntu6~4) but 5.6.1+dfsg-3ubuntu7~2 is installed
               Depends: libqt5printsupport5 (= 5.6.1+dfsg-3ubuntu6~4) but 5.6.1+dfsg-3ubuntu7~2 is installed
               Depends: libqt5sql5 (= 5.6.1+dfsg-3ubuntu6~4) but 5.6.1+dfsg-3ubuntu7~2 is installed
               Depends: libqt5test5 (= 5.6.1+dfsg-3ubuntu6~4) but 5.6.1+dfsg-3ubuntu7~2 is installed
               Depends: libqt5widgets5 (= 5.6.1+dfsg-3ubuntu6~4) but 5.6.1+dfsg-3ubuntu7~2 is installed
               Depends: libqt5xml5 (= 5.6.1+dfsg-3ubuntu6~4) but 5.6.1+dfsg-3ubuntu7~2 is installed
 libmircookie-dev : Depends: libmircookie2 (= 0.24.0+16.10.20160815.3-0ubuntu2) but 0.24.1+16.10.20160928-0ubuntu1 is installed
The following actions will resolve these dependencies:
         Keep the following packages at their current version:     1)     libegl1-mesa-dev [Not Installed]                        2)     libgles2-mesa-dev [Not Installed]                  
3)     libmirclient-dev [Not Installed]                   
4)     libmircommon-dev [Not Installed]                   
5)     libmircookie-dev [Not Installed]                   
6)     libqt5opengl5-dev [Not Installed]                  
7)     qtbase5-dev [Not Installed]                        



Accept this solution? [Y/n/q/?] ?

Apt-get's solution is to leave it unchanged.

It seems odd that the main repo version of Qt 5.6.1 requires different libraries to the other packages.

It looks like I need to downgrade these libraries from 7.2 to to 6.4. Can I do this safely, and install Qt 5.6.1? Or is there a better way to fix the problem?

$ apt-cache policy libqt5core5a
libqt5core5a:
  Installed: 5.6.1+dfsg-3ubuntu7~2
  Candidate: 5.6.1+dfsg-3ubuntu7~2
  Version table:
 *** 5.6.1+dfsg-3ubuntu7~2 100
        100 /var/lib/dpkg/status
     5.6.1+dfsg-3ubuntu6~4 500
        500 http://mirrors.psu.ac.th/ubuntu yakkety/main amd64 Packages

I eventually sorted this out by using Synaptic to force the qtbase5-dev dependencies to the previous (Yakkety-upgrades or Yakkety) versions.

This left the libmir files. Manually installing them failed, but shows the problematic dependencies. Repeating for the dependencies and working down through them eventually led to one or two files which needed to be downgraded.

Forcing that via Synaptic also removed a host of basic Yakkety applications; it's a pity I couldn't find a way to downgrade them in parallel, keeping a consistent system, but in the end I let them go, installed Qt5, and manually reinstalled the missing packages by using Synaptic's Status 'Not installed (residual config)' section to identify and reinstall them.

I had a couple of minor issues with security-related packages on reboot, but quickly solved with Google.

I am using Lubuntu, and I wanted to connect my printer, to my computer. But I followed the commands given by the brother company, but I was unable to make that work, because I wanted the wireless approach of it. For that I need the device URI, but I clicked auto for that, and that worked, but the installation of the device didn't work.

I already spent hours and hours to get my bluetooth audio device running.

• System: Ubuntu 16.04 LTS Xenial, all updates installed, running on a Lenovo Y50 Notebook

• Device: Bluetooth receiver MR230, with analog audio output. It is meant to connect to an old hi-fi system. The device won't connect automatically, but I can find, pair, trust, and connect it with bluetoothctl without problems. The bluetooth manager shows it as a headphone.

• the pactl list short command shows, that the modules module-bluetooth-discover, module-bluez5-discover, module-switch-on-connect, and module-bluetooth-policy are all running (after I started them manually)

But still, I can't choose the device in pavucontrol because it doesn't appear there. I might have messed up some of my config files during these tries, though it should still work as all necessary modules are loaded and the device is connected.

Any ideas?

I am facing difficulties connecting to wifi on my Lenovo Flex 3 1480 laptop on Ubuntu 14.04. It works fine on Windows. I am attaching wireless-info.txt that I got from : http://ubuntuforums.org/showthread.php?t=370108

########## wireless info START ##########

Report from: 25 Jan 2016 13:52 MST -0700
Booted last: 25 Jan 2016 13:47 MST -0700
Script from: 27 Sep 2015 00:34 UTC +0000

##### release ###########################

Distributor ID: Ubuntu
Description:    Ubuntu 14.04.3 LTS
Release:    14.04
Codename:   trusty

##### kernel ############################

Linux 3.19.0-49-generic #55~14.04.1-Ubuntu SMP Fri Jan 22 11:24:31 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

Parameters: ro, quiet, splash, vt.handoff=7

##### desktop ###########################

sed: can't read /root/.dmrc: No such file or directory

Could not be determined.

##### lspci #############################

02:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:0042] (rev 30)
    Subsystem: Lenovo Device [17aa:4035]

03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
    Subsystem: Lenovo Device [17aa:3835]
    Kernel driver in use: r8169

##### lsusb #############################

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 0cf3:e360 Atheros Communications, Inc. 
Bus 001 Device 004: ID 04f3:2083 Elan Microelectronics Corp. 
Bus 001 Device 003: ID 5986:0670 Acer, Inc 
Bus 001 Device 002: ID 046d:c535 Logitech, Inc. 
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

##### lsmod #############################

mac80211              638976  0 
cfg80211              532480  1 mac80211
compat                 28672  2 cfg80211,mac80211
ideapad_laptop         24576  0 
sparse_keymap          16384  1 ideapad_laptop
wmi                    20480  0 

##### interfaces ########################

auto lo
iface lo inet loopback

##### ifconfig ##########################

eth0      Link encap:Ethernet  HWaddr   
          inet addr:10.218.104.240  Bcast:10.218.111.255  Mask:255.255.248.0
          inet6 addr: fe80::/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8295 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1212 errors:0 dropped:25 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1871640 (1.8 MB)  TX bytes:156822 (156.8 KB)

##### iwconfig ##########################

eth0      no wireless extensions.

lo        no wireless extensions.

##### route #############################

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         10.218.104.1    0.0.0.0         UG    0      0        0 eth0
10.218.104.0    0.0.0.0         255.255.248.0   U     1      0        0 eth0

##### resolv.conf #######################

nameserver 127.0.1.1
search cidse.dhcp.asu.edu

##### network managers ##################

Installed:

    NetworkManager

Running:

root      1017     1  0 13:47 ?        00:00:00 NetworkManager

##### NetworkManager info ###############

NetworkManager Tool

State: connected (global)

- Device: eth0  [Wired connection 1] -------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             connected
  Default:           yes
  HW Address:        

  Capabilities:
    Carrier Detect:  yes
    Speed:           1000 Mb/s

  Wired Properties
    Carrier:         on

  IPv4 Settings:
    Address:         10.218.104.240
    Prefix:          21 (255.255.248.0)
    Gateway:         10.218.104.1

    DNS:             129.219.17.200
    DNS:             129.219.17.5
    DNS:             129.219.13.81

##### NetworkManager.state ##############

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true

##### NetworkManager.conf ###############

[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq

[ifupdown]
managed=false

##### NetworkManager profiles ###########

[[/etc/NetworkManager/system-connections/Wi-Fi connection 1]] (600 root)
[connection] id=Wi-Fi connection 1 | type=802-11-wireless
[802-11-wireless] ssid=asu
[ipv6] method=auto
[ipv4] method=auto

##### iw reg get ########################

Region: America/Phoenix (based on set time zone)

country 00:
    (2402 - 2472 @ 40), (3, 20)
    (2457 - 2482 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
    (2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS
    (5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
    (5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS

##### iwlist channels ###################

eth0      no frequency information.

lo        no frequency information.

##### iwlist scan #######################

eth0      Interface doesn't support scanning.

lo        Interface doesn't support scanning.

##### module infos ######################

[mac80211]
filename:       /lib/modules/3.19.0-49-generic/updates/dkms/mac80211.ko
license:        GPL
description:    IEEE 802.11 subsystem
version:        backported from  () using backports 
srcversion:     BEF453E7AC487F911F8EDBF
depends:        cfg80211,compat
vermagic:       3.19.0-49-generic SMP mod_unload modversions 
parm:           max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
parm:           max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
parm:           beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
parm:           probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
parm:           ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)

[cfg80211]
filename:       /lib/modules/3.19.0-49-generic/updates/dkms/cfg80211.ko
version:        backported from  () using backports 
description:    wireless configuration support
license:        GPL
author:         Johannes Berg
srcversion:     F6775E4370E54D5795E4BE2
depends:        compat
vermagic:       3.19.0-49-generic SMP mod_unload modversions 
parm:           ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm:           cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)

##### module parameters #################

[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
probe_wait_ms: 500

[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00

##### /etc/modules ######################

lp
rtc

##### modprobe options ##################

[/etc/modprobe.d/ath10k_core.conf]
options ath10k_core skip_otp=y

[/etc/modprobe.d/ath10k-dkms.conf]
options ath10k_core skip_otp=1

[/etc/modprobe.d/ath9k.conf]
options ath9k nohwcrypt=1

[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci

[/etc/modprobe.d/blacklist-bcm43.conf]
blacklist b43
blacklist b43legacy
blacklist ssb
blacklist bcm43xx
blacklist brcm80211
blacklist brcmfmac
blacklist brcmsmac
blacklist bcma

[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac

[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off

[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211

[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en

##### rc.local ##########################

exit 0

##### pm-utils ##########################

##### udev rules ########################

[/etc/udev/rules.d/70-persistent-net.rules]
# PCI device 0x10ec:0x8168 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

##### dmesg #############################

[   13.723430] wl: module license 'MIXED/Proprietary' taints kernel.
[   13.725722] wl: disagrees about version of symbol wiphy_new_nm
[   13.725723] wl: Unknown symbol wiphy_new_nm (err -22)
[   13.725736] wl: disagrees about version of symbol wiphy_register
[   13.725737] wl: Unknown symbol wiphy_register (err -22)
[   13.725783] wl: disagrees about version of symbol wiphy_unregister
[   13.725784] wl: Unknown symbol wiphy_unregister (err -22)
[   13.725798] wl: disagrees about version of symbol __ieee80211_get_channel
[   13.725799] wl: Unknown symbol __ieee80211_get_channel (err -22)
[   13.725832] wl: disagrees about version of symbol wiphy_free
[   13.725833] wl: Unknown symbol wiphy_free (err -22)
[   14.123327] ath: disagrees about version of symbol wiphy_apply_custom_regulatory
[   14.123331] ath: Unknown symbol wiphy_apply_custom_regulatory (err -22)
[   14.123338] ath: disagrees about version of symbol __ieee80211_get_channel
[   14.123339] ath: Unknown symbol __ieee80211_get_channel (err -22)
[   14.123346] ath: disagrees about version of symbol freq_reg_info
[   14.123347] ath: Unknown symbol freq_reg_info (err -22)
[   21.831480] r8169 0000:03:00.0 eth0: link down
[   21.831527] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   26.392468] r8169 0000:03:00.0 eth0: link up
[   26.392477] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   51.394064] r8169 0000:03:00.0 eth0: link down (repeated 2 times)
[  120.582163] r8169 0000:03:00.0 eth0: link up

########## wireless info END ############

Please indicate why I am getting "network unclaimed". I have tried following the following, without any positive results. Ethernet works fine.

https://askubuntu.com/a/708103/497674 https://askubuntu.com/a/481221/497674

Edit 1: Adding dkms status

root@ankita-Flex-3-1480:/home/ankita# dkms status
backath10k, 2.0, 3.13.0-77-generic, x86_64: installed
backath10k, 2.0, 3.19.0-47-generic, x86_64: installed
backath10k, 2.0, 3.19.0-49-generic, x86_64: installed
bcmwl, 6.30.223.248+bdcom, 3.13.0-77-generic, x86_64: installed
bcmwl, 6.30.223.248+bdcom, 3.19.0-47-generic, x86_64: installed
bcmwl, 6.30.223.248+bdcom, 3.19.0-49-generic, x86_64: installed
root@ankita-Flex-3-1480:/home/ankita# sudo apt-get remove bcmwl-kernel-source broadcom-sta-common broadcom-sta-dkms
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package broadcom-sta-common
E: Unable to locate package broadcom-sta-dkms

Thanks in advance

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