I just started using Linux Mint 22.1 Xia. It's also my first time using Firefox, I'm used to Chrome. So the issue is, when I use Firefox taskbar becomes invisible, after I click my super button the Menu opens with taskbar but it doesn't function at all. I can use Menu but I cannot use any application that is on taskbar, when I click something in the taskbar it just becomes invisible again. I hope there's an fix for this, I tried few things like trying another menu (Cinnamenu) but it does nothing. Thanks already!

We need to run the FAST-LIO (LiDAR SLAM) algorithm, which we have already tested successfully on Ubuntu 20.04.

Previously, we were using a system with:

• Ryzen 5 CPU

• 32 GB RAM

• No dedicated GPU

However, during LiDAR map generation, the system gets stuck and performance is very poor.

To solve this, we upgraded our hardware to:

• Intel i9-285 processor

• NVIDIA RTX Ada 2000 GPU (16 GB)

• Higher overall system performance

Now we are facing a new problem:
How do we properly install Ubuntu 20.04 on this Intel i9-285 system?

Questions:

1. Does Ubuntu 20.04 fully support Intel i9-285 CPUs?

2. Are there any special BIOS settings, kernel versions, or drivers required?

3. Should we install Ubuntu 20.04 directly, or use Docker/VM as a workaround?

4. Has anyone successfully run FAST-LIO or similar LiDAR SLAM pipelines on this hardware with Ubuntu 20.04?

I've been having this problem ever since I started dual booting Ubuntu and Windows. Whenever I remove my laptop's charger the OS freezes.

Specs:

• OS: Ubuntu 24.04

• CPU: Intel Celeron N2840 (2) @ z

• GPU: Intel Atom processor Z36xxx/Z37x]

• RAM: 2.76 GiB / 3.71 GiB (74%)

I just installed 25.10 and selected not to require a password to log in. Every few minutes, if I do not hit a key or click the mouse, I get locked out and must re-enter my password.

How do I get rid of this?

Follow-up to my previous question on here:

Basically does the user of the Ubuntu Linux system have to use XZ Utils to create an infected liblzma for the sshd to use to activate the backdoor? As in “I can’t load! I need liblzma to run!” Does the user have to do essentially anything on Linux manually when they are connected to public sshd to trigger the backdoor

Sam James implied himself that using XZ Utils to create the infected library could infect your machine

The attack relied on OpenSSH linking to a library which in turn linked to the xz library and not on compression or decompression in anyway. The backdoor’s code was included as a part of the Xz build process.

Also was systemd notification enabled by default in OpenSSH?

Do you have to manually enable systemd notification in Linux or is it enabled by default?

There is a folder that I can't select, open or delete on the lower part of the screen and unmounted volume in the side bar:

I don't know how to fix this. The folder shows with any application.

Using tmux in a script, tmux produces messages like [remote detached from 585664.devpts0] or [exited]

How can these messages be suppressed?

I use in config

set -g visual-bell off
set -g status off; 
set -g visual-activity  off

and 2>/dev/null for all the tmux commands, but I can't get rid of the messages.

I want to install the Canon imageRUNNER 2425 driver in my system. I tried other options from YouTube and Ubuntu, but I could not get the printer driver installed successfully.

What it says is, dpkg: dependency problems prevent configuration of cnrdrvcups-ufr2-uk: cnrdrvcups-ufr2-uk depends on cups | cupsys; however: Package cups is not installed. Package cupsys is not installed.

dpkg: error processing package cnrdrvcups-ufr2-uk (--install): dependency problems - leaving unconfigured Processing triggers for gnome-menus (3.36.0-1ubuntu3) ... Processing triggers for desktop-file-utils (0.26-1ubuntu3) ... Processing triggers for mailcap (3.70+nmu1ubuntu1) ... Processing triggers for hicolor-icon-theme (0.17-2) ... Errors were encountered while processing: cnrdrvcups-ufr2-uk

Could not install.

Now what to do?

Similar to Ubuntu 24.04 (Noble): Wi-Fi stopped working after kernel upgrade to 6.17.0-14-generic (Intel AX211 / iwlwifi), but the solution there does not work for me. As noted below, I'm on version 6.8 of the kernel, while that question is for version 6.17. Presumably, all of the solutions over there are also for 6.17, since they all boil down to the same thing that doesn't do anything for me. No change in behavior at all.

Ubuntu Studio 24.04.1 LTS (KDE 5, kernel 6.8) on a Dell Precision M6800 Mobile Workstation. It was rock-solid before, but I thought I'd upgrade the WiFi, since I found a forum post elsewhere that claimed success. So I got the exact model from that post, and swapped it in:

https://www.amazon.com/8774Mbps-Gigabit-Interface-Bluetooth-BE200HMW/dp/B0DNZS761K?th=1

Edit: Output of the Wireless Info Script is here:
https://drive.google.com/file/d/1hDamjIeDjaBPvvXzgR65BeXS4hg3Ec9n/view?usp=sharing

dmesg:
https://drive.google.com/file/d/1--iBvEnSYAVdLa33QNZh4S6fuPIyFllO/view?usp=sharing
I suspect the relevant part might be this, but I'm not sure what it means:

[    6.792669] Intel(R) Wireless WiFi driver for Linux
[    6.792777] iwlwifi 0000:03:00.0: enabling device (0000 -> 0002)
[    6.795777] iwlwifi 0000:03:00.0: Detected crf-id 0x1001910, cnv-id 0x1001910 wfpm id 0x80000000
[    6.795846] iwlwifi 0000:03:00.0: PCI dev 272b/00f0, rev=0x471, rfid=0x112100
[    6.822777] mc: Linux media interface: v0.10
[    6.847006] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-gl-b0-fm-b0-86.ucode failed with error -2
[    6.872835] workqueue: smp_call_on_cpu_callback hogged CPU for >10000us 4 times, consider switching to WQ_UNBOUND
[    6.924924] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-gl-b0-fm-b0-85.ucode failed with error -2
[    6.975001] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-gl-b0-fm-b0-84.ucode failed with error -2
[    6.975060] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-gl-b0-fm-b0-83.ucode failed with error -2
[    6.975086] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-gl-b0-fm-b0-82.ucode failed with error -2
[    7.008101] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-gl-b0-fm-b0-81.ucode failed with error -2
[    7.008151] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-gl-b0-fm-b0-80.ucode failed with error -2
[    7.008156] iwlwifi 0000:03:00.0: no suitable firmware found!
[    7.008159] iwlwifi 0000:03:00.0: minimum version required: iwlwifi-gl-b0-fm-b0-80
[    7.008162] iwlwifi 0000:03:00.0: maximum version supported: iwlwifi-gl-b0-fm-b0-86
[    7.008164] iwlwifi 0000:03:00.0: check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git

And on a LiveUSB of UbuntuStudio 24.04.4, with the newer kernel:

ubuntu-studio@ubuntu-studio:~$ sudo dmesg | grep iwl
[   20.141491] iwlwifi 0000:03:00.0: enabling device (0000 -> 0002)
[   20.164852] iwlwifi 0000:03:00.0: Detected crf-id 0x1001910, cnv-id 0x1001910 wfpm id 0x80000000
[   20.164925] iwlwifi 0000:03:00.0: PCI dev 272b/00f0, rev=0x471, rfid=0x112100
[   20.164929] iwlwifi 0000:03:00.0: Detected Intel(R) Wi-Fi 7 BE200 320MHz
[   20.179995] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-gl-b0-fm-b0-102.ucode failed with error -2
[   20.180058] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-gl-b0-fm-b0-101.ucode failed with error -2
[   20.180108] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-gl-b0-fm-b0-100.ucode failed with error -2
[   20.180160] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-gl-b0-fm-b0-99.ucode failed with error -2
[   20.180215] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-gl-b0-fm-b0-98.ucode failed with error -2
[   20.180217] iwlwifi 0000:03:00.0: no suitable firmware found!
[   20.180220] iwlwifi 0000:03:00.0: minimum version required: iwlwifi-gl-b0-fm-b0-98
[   20.180221] iwlwifi 0000:03:00.0: maximum version supported: iwlwifi-gl-b0-fm-b0-102
[   20.180223] iwlwifi 0000:03:00.0: check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
ubuntu-studio@ubuntu-studio:~$

Back to the native install of 24.04.1 with the 6.8 kernel:

aaron@aaron-M6800:~$ locate iwlwifi-gl-c0-fm-c0-98.ucode
/home/aaron/Downloads/2026-02-17_WiFi/linux-firmware/intel/iwlwifi/iwlwifi-gl-c0-fm-c0-98.ucode
/usr/lib/firmware/iwlwifi-gl-c0-fm-c0-98.ucode
/usr/lib/firmware/iwlwifi-gl-c0-fm-c0-98.ucode.zst
aaron@aaron-M6800:~$ 

Continue reading for the order of troubleshooting.

It started up just fine, but no WiFi at all. lspci said:

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller (rev 06)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06)
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-LM (rev 04)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d4)
00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #3 (rev d4)
00:1c.3 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #4 (rev d4)
00:1c.4 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #5 (rev d4)
00:1c.6 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #7 (rev d4)
00:1c.7 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #8 (rev d4)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation QM87 Express LPC Controller (rev 04)
00:1f.2 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller [RAID mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation GP104GLM [Quadro P5000 Mobile] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GP104 High Definition Audio Controller (rev a1)
03:00.0 Network controller: Intel Corporation Wi-Fi 7(802.11be) AX1775*/AX1790*/BE20*/BE401/BE1750* 2x2 (rev 1a)
11:00.0 SD Host controller: O2 Micro, Inc. SD/MMC Card Reader Controller (rev 01)

So I swapped back to the old card, same configuration as before, and it wouldn't finish booting! First time it's done that in a VERY long time! It got as far as the second splash screen, after auto-login, for loading the user's settings, and then hung there, gear spinning for far longer than it normally does.

Eventually I gave up, held the power button to force it off, took the card out, and tried to run it with no WiFi card at all. Same thing again: hung on the spinning gear after auto-login.

So I went back to the one configuration that worked - the new WiFi card - and it STILL did the exact same thing: hung on loading user settings.

Then I went into the BIOS and got this, still with the new card:

After that, it finally finished logging in, in the same time that it normally takes, but I don't know how or why since I didn't change anything. Still no WiFi.

aaron@aaron-M6800:~$ ifconfig
Command 'ifconfig' not found, but can be installed with:
sudo apt install net-tools
aaron@aaron-M6800:~$ sudo apt install net-tools
[sudo] password for aaron: 

...

aaron@aaron-M6800:~$ ifconfig
eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet ***.***.***.***  netmask ***.***.***.***  broadcast ***.***.***.***
        inet6 ****::****:****:****:****  prefixlen 64  scopeid 0x20<link>
        ether 34:e6:d7:**:**:**  txqueuelen 1000  (Ethernet)
        RX packets 143994  bytes 165365853 (165.3 MB)
        RX errors 0  dropped 2  overruns 0  frame 0
        TX packets 97963  bytes 16432715 (16.4 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 20  memory 0xf7800000-f7820000  

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 6661  bytes 719614 (719.6 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 6661  bytes 719614 (719.6 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

aaron@aaron-M6800:~$ sudo lshw -class network
[sudo] password for aaron: 
  *-network                 
       description: Ethernet interface
       product: Ethernet Connection I217-LM
       vendor: Intel Corporation
       physical id: 19
       bus info: pci@0000:00:19.0
       logical name: eno1
       version: 04
       serial: 34:e6:d7:**:**:**
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=6.8.0-94-lowlatency duplex=full firmware=0.13-3 ip=192.168.20.98 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
       resources: irq:41 memory:f7800000-f781ffff memory:f783d000-f783dfff ioport:f080(size=32)
  *-network UNCLAIMED
       description: Network controller
       product: Wi-Fi 7(802.11be) AX1775*/AX1790*/BE20*/BE401/BE1750* 2x2
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       version: 1a
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix cap_list
       configuration: latency=0
       resources: memory:f7700000-f7703fff
aaron@aaron-M6800:~$ rfkill list all
1: dell-wifi: Wireless LAN
        Soft blocked: no
        Hard blocked: no
2: dell-bluetooth: Bluetooth
        Soft blocked: yes
        Hard blocked: no
3: hci0: Bluetooth
        Soft blocked: yes
        Hard blocked: no
aaron@aaron-M6800:~$ sudo dmesg | grep -i firmware
[23505.872167] audit: type=1400 audit(1771394432.473:1374): apparmor="DENIED" operation="open" class="file" profile="snap.firmware-updater.firmware-notifier" name="/proc/sys/vm/max_map_count" pid=40061 comm="firmware-notifi" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
aaron@aaron-M6800:~$ 

Fortunately, my home dock is wired, which is how I'm posting this, but I do need WiFi when I take it places. At this point, I'd be happy if either card worked, but of course I'd still prefer the new one. Any ideas?

Trying to install vmware modules as shown in this: https://superuser.com/a/1733280, but whenever I try to run make, this error shows up

  The kernel was built by: x86_64-linux-gnu-gcc-12 (Ubuntu 12.3.0-1ubuntu1~22.04) 12.3.0
  You are using:           gcc-12 (Ubuntu 12.3.0-1ubuntu1~22.04) 12.3.0

I can't really find info on this online, I'd like some help as I am not that experienced with Linux in general.

I'm using gnome classic on Ubuntu 24.04, and I would like to add some launcher icons on the top bar, but I can't find how. In previous versions of Ubuntu/Linux/Gnome, I would either right-click where I wanted the icon and a menu would pop up with the option "add app launcher", or I would find the app in the menu and drag the icon where I want it on the bar, but none of the options is available in my version.

I don't know what version of gnome classic I'm using, I did echo "$XDG_CURRENT_DESKTOP", and "echo $DESKTOP_SESSION", and all it says is it's gnome-classic, which I already knew, but no version number is given. If the exact version number is needed, let me know how to retrieve it.

Here is where I want the icons.

I am trying to get a GPU system load monitor to work in xfce4 panel. Is there any way to configure the current CPU system load monitor to reflect GPU usage? I know we can run a script in genmon generic monitor but I don't have the skills necessary to create the script.

I have an AMD GPU and currently use gpu-mon --gui for monitoring but would like to have something similar to the CPU monitor in the panel, preferably for GPU load and vram mem load.

Thanks

I am trying to use sftp to pull a file from a remote server.

Both client and server-side users are created with adduser --system and their shell is /usr/sbin/nologin. The users are called legit-backup.

Public-key authorisation has been configured for the client user to have SSH access to the server as a user of the same name. When I try to pull down the file /home/legit-backup/test a file using the command sudo -u legit-backup scp legit-backup@<remote-server>:~/test, I receive the error protocol error: mtime.sec not present, no files copy down.

If I change the remote user's shell to /bin/bash then sftp works as normal.

I wan to use /usr/sbin/nologin for security reasons, the user should not be able to have SSH access other than sftp, is it possible?

This question has been asked in different ways over time. Specifically, given current versions, I'd like to chart memory usage of processes over time, ideally in comparison with other processes.

Use case: With regular updates I'll reboot my Ubuntu systems once every couple weeks - a required process for which Linux fans used to mock Windows users. If I don't restart for maybe three weeks or a month, the system eventually becomes inaccessible, with the console reporting out of memory conditions. To determine which process(es) is/are responsible for this I want to see which processes consume and then do not release memory. A graph should show at least one process with an average consumption that is greater than its release - until memory is exhausted. That is - a line graph should should show one or more processes continuing to go up from one reboot to the next.

I understand that I can craft a solution with RRDtool, pidstat, ps in a cron, etc. Before I create a DIY project I'd like to know if there is an existing tool that already does this. I have to believe there is. Of course if I have to create it, I'll FOSS it. Thanks.

After installing and restarting my computer from the Ubuntu Software Updater prompt, my computer never completes a boot due to Failed to start Daemon for power management error:

/dev/sda2: recovering journal
/dev/sda2: clean, 789912/30498816 files, 66894142/121965056 blocks
^[[20~^[[20~^[[20~^[[20~^[[20~^[[20~^[[20~^[[20~[FAILED] Failed to start Daemon for power management.
See 'systemctl status upower.service' for details.

I tried to go into the GRUB and boot an older Linux version there, but the same issue occurred.

Being unable to boot my system, I went into Recovery Menu to attempt to solve issue from there. When I attempted to use dpkg Repair broken packages, I hit another issue that I did not find talked about in the web:

Reading cache
Can not upgrade
An upgrade from 'bionic' to 'focal' is not supported with this tool."

As I keep running into issues popping up, I am not really sure what Ubuntu's Software Update really did to my computer. I am really not sure where to go at this point to address the issues.

I am unable to boot, stuck at a black screen in emergency mode with the following messages.

to boot into default mode.
Press Enter for maintenance
(or press Control-D to continue):
Reloading system manager configuration
Starting default target
[  397.855073] systemd[1]: Failed to activate swap /swapfile.
[  397.861470] systemd[1]: Failed to start Network Name Resolution.
[  397.863159] systemd[1]: Failed to start Network Time Synchronization.
[  397.871755] systemd[1]: Failed to start Network Name Resolution.
[  397.876272] systemd[1]: Failed to start Network Time Synchronization.
You are in emergency mode. After logging in, type "journalctl -xb" to view
system logs, "systemctl reboot" to reboot, "systemctl default" or "exit"
to boot into default mode.
Press Enter for maintenance
(or press Control-D to continue):

My computer keeps going to emergency mode. I tried Boot-Repair and checked and repaired file system.

If I reinstall Ubuntu MATE, will I lose all my customizations?

[    3.940608] ACPI Error: [\_SB_.ALIB] Namespace lookup failure, AE_NOT_FOUND (20170831/psargs-364)
[    3.940670] ACPI Error: Method parse/execution failed \_SB.PCI0.VGA.ATC0, AE_NOT_FOUND (20170831/psparse-550)
[    3.940720] ACPI Error: Method parse/execution failed \_SB.PCI0.VGA.ATCS, AE_NOT_FOUND (20170831/psparse-550)
You are in emergency mode. After logging in, type "journalctl -xb" to view
system logs, "systemctl reboot" to reboot, "systemctl default" or "exit"
to boot into default mode.
Press Enter for maintenance
(or press Control-D to continue): 

I am using Ubuntu Budgie. It was working file until this morning. I don't usually shut down my laptop at all, but yesterday my battery drained completely, so after I charged it I tried booting it up. After start grub my Ubuntu logo appeared and later a black screen with some nerdy boot messages was visible and every time I boot it gets stuck at that process.

/dev/sda5: recovering journal
/dev/sda5: Clearing orphaned inode 17432595 (uid=0, gid=0, mode=0100666, size=0)
/dev/sda5: clean, 401499/24420352 files, 5473670/97656064 blocks
[   64.538607] nouveau 0000:01:00.0: DRM: failed to idle channel 1 [DRM]
[   64.545367] pcieport 0000:00:1c.5: AER: PCIe Bus Error: severity=Corrected, type=Physical Layer, (Receiver ID)
[   64.545424] pcieport 0000:00:1c.5: AER:   device [8086:9d15] error status/mask=00002001/00002000
[   64.545466] pcieport 0000:00:1c.5: AER:    [ 0] RxErr
[   64.559735] nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff
[   64.564832] nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff
[   64.567785] nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff
[   64.584689] pcieport 0000:00:1c.5: AER: PCIe Bus Error: severity=Corrected, type=Physical Layer, (Receiver ID)
[   64.584748] pcieport 0000:00:1c.5: AER:   device [8086:9d15] error status/mask=00002001/00002000
[   64.584790] pcieport 0000:00:1c.5: AER:    [ 0] RxErr
[   66.231711] nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff
[   66.236470] nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff
[   66.238811] nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff
[   67.198440] nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff
[   67.203493] nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff
[   67.205904] nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff
[   67.281706] nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff
[   67.286256] nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff
[   67.288527] nouveau 0000:01:00.0: tmr: stalled at ffffffffffffffff
_

I have installed Ubuntu 18.04 LTS in my HP 15 laptop. Initially there were no wifi drivers, so I installed the rtlwifi_new after reading some threads on internet (worked like a charm) but there is a constant issue with my bluetooth.

At first I connected my bluetooth earphones, which was working weird. There was sound quality that was pathetic, nothing like the great quality it gave when connected to my mobile. I checked around and installed Blueman and changed the audio profile to A2DP from HSP/HFP. This made the sound quality definitely better but the issue wasnt resolved totally.

Now the sound was breaking when I moved away even a bit, and I mean like 2-3 centimeter as well. This issue was there earlier as well, with the HSP profile. And the max distance where there was proper sound like the one on my mobile, was maybe 15cm. I thought this is a problem with my earphones, so I charged them up completely and repeated again, but again the same issue. So I now connected my mobile to the laptop via bluetooth and it turns out, my mobile gets disconnected if the distance increases by more than, 20-30 cm. Where as bluetooth shud be fine with atleast 5-8 meter.

I checked the blueman service and found that the signal strength is extremely weak even with the bluetooth device kept right on the laptop keypad. As you can see in the screenshot below. (Picture in link)

Extremely Low Signal Strength of bluetooth

I have searched a lot on the internet and could not find any relatable answer which solved my issue, maybe I am not very good at searching.

But I would be really glad if someone could help me solve this so that I can get started with my lessons online comfortably using my headphones through bluetooth on laptop.

Thanks a tonne in advance.

EDIT 1: Just found out, if I turn off the WiFi, everything comes back to perfect. My bluetooth earphones play even at 8m far distance. But when i turn back the wifi on, the issue is back.

EDIT 2: grep -i bt_coex_active /etc/modprobe.d/*

This is what I get:

/etc/modprobe.d/iwlwifi-opt.conf:options iwlwifi bt_coex_active=N

EDIT 3: sudo lshw -C network

This is what I get:

*-network                 
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:01:00.0
       logical name: eno1
       version: 15
       serial: e4:e7:49:68:b4:3f
       size: 10Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168h-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:16 ioport:4000(size=256) memory:b1104000-b1104fff memory:b1100000-b1103fff
  *-network DISABLED
       description: Wireless interface
       product: Realtek Semiconductor Co., Ltd.
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlo1
       version: 00
       serial: 80:2b:f9:8e:64:1f
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtl8723de driverversion=4.18.0-17-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11
       resources: irq:128 ioport:3000(size=256) memory:b1000000-b100ffff
  *-network
       description: Ethernet interface
       physical id: 3
       logical name: enp0s20f0u2
       serial: ba:80:46:25:01:86
       capabilities: ethernet physical
       configuration: broadcast=yes driver=rndis_host driverversion=22-Aug-2005 firmware=RNDIS device ip=192.168.42.146 link=yes multicast=yes

I have Kdenlive and Krita appimages Installed. Do I have to update them manually or it's automatic?

I've just recently built a home server, and went through all the steps of installing Sabnzbd, Sonarr, Radarr, and Plex. This time around, I decided to use Ubuntu 18.04.1 (as opposed to Windows Server 2016) and Docker.

The problem I am having is that when I go to add existing series and movies via Sonarr and Radarr, respectively, I am unable to locate the drive that the shows and movies are contained on. I have two drives apart from the main OS drive, and they separately contain movies and shows. They are set to automatically mount in the /media/ directory with fstab. Plex is able to read these files, which I find odd. I know it's a permissions issue with the folders but I'm just having trouble configuring the folders' permissions. I have set the folder owner and group to my user account, but in WinSCP the folders still show the owner being root, not sure if that's a bug or not. How do I need to have these folders set up?

If you need any more information please let me know. Thanks!

EDIT:

1. Permissions according to ls -la:

drwxrwxrwx 1 administrator root 131072 Oct 23 00:15 movies drwxrwxrwx 1 administrator root 81920 Oct 23 19:03 tv

2. FSTAB:

UUID=E046167246164A24 /media/movies ntfs-3g permissions 0 1 UUID=1C5829AD5829871C /media/tv ntfs-3g permissions 0 1

3. The drive format is NTFS.

I have been using Ubuntu 14.04 for 6 months. Suddenly when I boot up the machine, the booting process get stuck at Ubuntu's loading splash screen.

I opened the terminal (Ctrl+Alt+F2) and commented out the GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" line from the grub and updated it, so that I could see the booting process instead of the Ubuntu Splash screen. From there, I found out that the booting process stops after the following command:

* Restoring resolver state....       [OK]
* Stopping anac(h)ronistic  crom     [OK]

Any kind of help will be appreciated, many thanks!

EDIT:

After rebooting several times, it is seen that the boot does not stops at Stoopping anac(h)ronistic crom everytime. Sometimes it stops at

saned disabled; edit /etc/default/saned
* Restoring resolver state...                     [OK]
* Starting ACPI daemon                            [OK]
* Staring regular background processing daemon    [OK]
* Starting CPU interrupts balancing daemon        [OK]
* Stopping System V runlevel compatibility        [OK]

and sometimes at:

saned disabled; edit /etc/default/saned
 * Restoring resolver state...                  [OK]
 * Starting ACPI daemon                         [OK]
 * Staring regular background processing daemon [OK]
 * Starting CPU interrupts balancing daemon     [OK]
 * Stopping System V runlevel compatibility     [OK]
 * Stopping network connection manager          [OK]
 * Starting SMB/CIFS File and Active Directory Server [OK]

Ubuntu 16.04 installed with these settings "Erase Disk and install Ubuntu" with "Use LVM with the new Ubuntu installation". Now have 3 partitions:

• /dev/sda1 mounted as /boot/efi
• /dev/sda2 Linux file system mounted as /boot and
• /dev/sda3 Linux LVM as 255 GB LVM2 PV with inside 2 Logical Volume /dev/ubuntu-vg/root (247 GB) and /dev/ubuntu-vg/swap_1 (8,5 GB).

Have searched for a clear and safe tutorial to be able to safely shrink the root partition to something like 30 GB (more or less) and create a new Logical Volume with the rest for a home/data partition.

Can't use system-config-lvm because of an error. The GUI shows up but doesn't display anything:

Unable to show VG because it contains features that are not supported in current version of system-config-lvm.

So I need to use the command line but not sure if it takes care of the data on the root partition (got a backup of important data).

Can anybody give me directions on what to do?

I'm on a work computer. There have been no problems with connectivity until now. I was working diligently, when suddenly my computer seized up. I thought it was a graphics issue and rebooted. When I couldn't log in (but my colleagues could) I realized that I couldn't authenticate to the LDAP server. From there I realized it was because my wired eth0 interface was not communicating with the network.

Results of ifconfig:

eth0      Link encap:Ethernet  HWaddr f8:b1:56:a8:14:6b  
          inet6 addr: fe80::fab1:56ff:fea8:146b/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:10557 errors:0 dropped:11 overruns:0 frame:0
          TX packets:881 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1231403 (1.2 MB)  TX bytes:205674 (205.6 KB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:2543 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2543 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:419097 (419.0 KB)  TX bytes:419097 (419.0 KB)

I checked the cable, and I checked the port with a different cable, and the IT guy's laptop. No problems there. He gave me a USB -> Ethernet adapter which I am currently using, but being USB it is not fast enough for the kind of data processing I do.

I checked syslogs from about the time it started failing:

$ cat /var/log/syslog | grep eth0  
Jun 28 12:46:05 picasso kernel: [    0.526128] r8169 0000:03:00.0 eth0: RTL8168g/8111g at 0xffffc90000074000, f8:b1:56:a8:14:6b, XID 0c000800 IRQ 47
Jun 28 12:46:05 picasso kernel: [    0.526130] r8169 0000:03:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
Jun 28 12:46:05 picasso kernel: [    5.261935] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Jun 28 12:46:10 picasso NetworkManager[1865]:    SCPlugin-Ifupdown: devices added (path: /sys/devices/pci0000:00/0000:00:1c.2/0000:03:00.0/net/eth0, iface: eth0)
Jun 28 12:46:10 picasso NetworkManager[1865]:    SCPlugin-Ifupdown: device added (path: /sys/devices/pci0000:00/0000:00:1c.2/0000:03:00.0/net/eth0, iface: eth0): no ifupdown configuration found.
Jun 28 12:46:10 picasso NetworkManager[1865]: <info> (eth0): carrier is OFF
Jun 28 12:46:10 picasso NetworkManager[1865]: <info> (eth0): new Ethernet device (driver: 'r8169' ifindex: 2)
Jun 28 12:46:10 picasso NetworkManager[1865]: <info> (eth0): exported as /org/freedesktop/NetworkManager/Devices/0
Jun 28 12:46:10 picasso NetworkManager[1865]: <info> (eth0): now managed
Jun 28 12:46:10 picasso NetworkManager[1865]: <info> (eth0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Jun 28 12:46:10 picasso NetworkManager[1865]: <info> (eth0): bringing up device.
Jun 28 12:46:11 picasso NetworkManager[1865]: <info> (eth0): preparing device.
Jun 28 12:46:11 picasso NetworkManager[1865]: <info> (eth0): deactivating device (reason 'managed') [2]
Jun 28 12:46:11 picasso NetworkManager[1865]: <info> Added default wired connection 'Wired connection 1' for /sys/devices/pci0000:00/0000:00:1c.2/0000:03:00.0/net/eth0
Jun 28 12:46:11 picasso kernel: [   21.290817] r8169 0000:03:00.0 eth0: link down
Jun 28 12:46:11 picasso kernel: [   21.290839] r8169 0000:03:00.0 eth0: link down
Jun 28 12:46:11 picasso kernel: [   21.290855] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Jun 28 12:46:11 picasso kernel: [   21.291021] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> (eth0): carrier now ON (device state 20)
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> (eth0): device state change: unavailable -> disconnected (reason 'carrier-changed') [20 30 40]
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> Activation (eth0) starting connection 'Wired connection 1'
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> (eth0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) scheduled...
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) started...
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) scheduled...
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) complete.
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) starting...
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> (eth0): device state change: prepare -> config (reason 'none') [40 50 0]
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) successful.
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) scheduled.
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) complete.
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) started...
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> (eth0): device state change: config -> ip-config (reason 'none') [50 70 0]
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> Activation (eth0) Beginning DHCPv4 transaction (timeout in 45 seconds)
Jun 28 12:46:13 picasso kernel: [   23.791505] r8169 0000:03:00.0 eth0: link up
Jun 28 12:46:13 picasso kernel: [   23.791512] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> Activation (eth0) Beginning IP6 addrconf.
Jun 28 12:46:13 picasso NetworkManager[1865]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) complete.
Jun 28 12:46:14 picasso NetworkManager[1865]: <info> (eth0): DHCPv4 state changed nbi -> preinit
Jun 28 12:46:14 picasso dhclient: Listening on LPF/eth0/f8:b1:56:a8:14:6b
Jun 28 12:46:14 picasso dhclient: Sending on   LPF/eth0/f8:b1:56:a8:14:6b
Jun 28 12:46:14 picasso dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
Jun 28 12:46:15 picasso avahi-daemon[1859]: Joining mDNS multicast group on interface eth0.IPv6 with address fe80::fab1:56ff:fea8:146b.
Jun 28 12:46:15 picasso avahi-daemon[1859]: New relevant interface eth0.IPv6 for mDNS.
Jun 28 12:46:15 picasso avahi-daemon[1859]: Registering new address record for fe80::fab1:56ff:fea8:146b on eth0.*.
Jun 28 12:46:17 picasso dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7
Jun 28 12:46:19 picasso dhclient: DHCPREQUEST of 10.30.64.53 on eth0 to 255.255.255.255 port 67
Jun 28 12:46:22 picasso dhclient: DHCPREQUEST of 10.30.64.53 on eth0 to 255.255.255.255 port 67
Jun 28 12:46:28 picasso dhclient: DHCPREQUEST of 10.30.64.53 on eth0 to 255.255.255.255 port 67
Jun 28 12:46:34 picasso NetworkManager[1865]: <info> (eth0): IP6 addrconf timed out or failed.
Jun 28 12:46:34 picasso NetworkManager[1865]: <info> Activation (eth0) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
Jun 28 12:46:34 picasso NetworkManager[1865]: <info> Activation (eth0) Stage 4 of 5 (IPv6 Configure Timeout) started...
Jun 28 12:46:34 picasso NetworkManager[1865]: <info> Activation (eth0) Stage 4 of 5 (IPv6 Configure Timeout) complete.
Jun 28 12:46:34 picasso dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
Jun 28 12:46:37 picasso dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 5
Jun 28 12:46:38 picasso dhclient: DHCPREQUEST of 10.30.64.53 on eth0 to 255.255.255.255 port 67
Jun 28 12:46:41 picasso dhclient: DHCPREQUEST of 10.30.64.53 on eth0 to 255.255.255.255 port 67
Jun 28 12:46:44 picasso dhclient: DHCPREQUEST of 10.30.64.53 on eth0 to 255.255.255.255 port 67
Jun 28 12:46:52 picasso dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
Jun 28 12:46:54 picasso dhclient: DHCPREQUEST of 10.30.64.53 on eth0 to 255.255.255.255 port 67
Jun 28 12:46:57 picasso dhclient: DHCPREQUEST of 10.30.64.53 on eth0 to 255.255.255.255 port 67
Jun 28 12:46:59 picasso NetworkManager[1865]: <warn> (eth0): DHCPv4 request timed out.

It seems to think the Ethernet adapter died, but it's at least being recognized. What can I do to fix it?

Update:

via IT:

I can ping this computer from the Access and Distribution switches, but not outside its subnet.

He asked me to verify the default gateway, but the Default route (I'm assuming it's the same thing) is already set to 10.30.64.1 according to the GUI network manager.

I am trying to remove wine and all of its remnants. When I use dpkg-query -l '*wine*' it tells me I have rc wine-staging-i version 1.9.10 with i386 architecture installed, but when I try to remove it outputs E: Unable to locate package wine-staging-i . I am running ubuntu 14.04 on a samsung chromebook with an intel processor. I'm sure it's obvious, but I'm super new to all of this and have no idea what I'm doing. I just trial and error-ed myself to this point. I apologize for any formatting or phrasing errors.

I've only really used Debian and Debian variants before and then only on either in VirtualBox or Raspberry Pi. I'm trying to install the server variant of Ubuntu onto a Samsung N150 plus netbook (1GB RAM, 150GB HDD).

In the install for some reason it wouldn't install GRUB. It just said fatal error, so I installed LILO (version 24 I think), but after that the install completed successfully. As I have a another Windows PC, I let it use the whole disk to install Ubuntu.

On the first boot up it gives the following error:

[ 2.913376] input: ETPS/2 Elantech Touchpad as devices/platform/i8042/serio1/input/input6
Gave up waiting for root device. Common problems:
 -boot args (cat /proc/cmdline)
   -check rootdelay= (did the system wait long enough?)
   -check root= (did the system boot to the right device?)
 -missing modules (cat /proc/modules; Is /dev)
ALERT! /dev/sdb1 does not exist. Dropping to a shell!
[ 33.370303] hidraw: raw HID events driver (C) Jiri Kosina
[ 33.383562] usbcore: registered new interface driver usbhid
[ 33.387133] usbhid: USB HID core driver 

BusyBox v1.21.1 (Ubuntu 1:1.21.0-1ubuntu1) built-in shell (ash)
Enter 'help' for a list of built-in commands.
(initramfs) 
[ 41.000170] random: nonblocking pool is initialized 

After that there was a pause (maybe 30 minutes) just as I finished typing out the above it added two more lines on below:

[ 1292.492081] perf samples too long (2501 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
[ 1292.492081] INFO: NMI handler (perf_event_nmi_handler) too long to run: 3.302 msecs
(initramfs) _

I've tried googling the problem, but most of the time it doesn't seem to happen on first boot. Most of the solutions involve changing code on a 'live CD'. I installed Ubuntu from a USB flash drive, and when I boot from that the option is to run the installation again, but I don't see anywhere to access the terminal.

After upgrading from 14.04 to 14.10 my computer cannot boot anymore, it is stuck at the logo screen (with animated dots). I'm using Windows to post this question.

By displaying the boot process, I see that it is stuck at "Stopping log initial device creation". When I press Ctrl+Alt+F2, only a flickering dash appears, and I can't even log in.

 * Starting Uncomplicated firewall
 * Starting load fallback graphics devices
 * Starting set console font
 * Stopping load fallback graphics devices
 * Stopping set console font
 * Starting userspace bootsplash
 * Starting Send an event to indicate plymouth is up
 * Stopping userspace bootsplash
 * Starting configure network device security
 * Starting configure network device security
 * Starting Mount network filesystems
 * Stopping Mount network filesystems
 * Starting Bridge socket events into upstart
 * Starting configure network device
 * Starting set sysctls from /etc/sysctl.conf
 * Stopping set sysctls from /etc/sysctl.conf
 * Starting configure network device
 * Stopping Read required files in advance (for other mountpoints)
 * Stopping cold plug devices
 * Stopping log initial device creation
_

I installed steam onto my SSD, but of course that can't hold very many games so I setup a second steam directory on my HDD.

However every single time a I restart my computer steam shows all my games in the directory as being uninstalled. However, when I click install I can navigate to the directory I made, select it, then all my steam games once again appear as installed.

How do I fix this.

Ubuntu 13.10

I upgraded my 11.10 to 12.04 but it stuck on the first boot at Checking battery state as shown in the below text block. I pressed Alt+Shift+Del many times, but it does not go any further.

* Starting mDNS/DNS-SD daemon
* Starting network connection manager
* Starting anon-proxy mix
* Starting CUPS printing spooler/server
Starting polipo: polipo.
                        speech-dispatcher disabled; edit /etc/default/speech-dispatcher
* Starting the Winbi

rather than invoking init scripts through /etc/init.d, use the service(8)
                                                                utility, e.g. service S25bluetooth st

script you are attempting to invoke has been converted to an
                                                             Upstart job, you may also use the start(8) utility, e

per-user sessions
                  saned disabled; edit /etc/default/saned
                                                          * Checking battery state...

I have a Lenovo N200 machine with a dual boot of Windows 7 and Ubuntu 11.10. I switched to Ubuntu 11.04, and all was going fine since my last night upgrade activity.

How I can proceed further? I have taken my home folder backup. If I have to reinstall it.

My graphics card is Intel Corporation GM965/GL960 Integrated Graphic Controller.

I just built a desktop computer using an ASRock E350M1 board, powered by an AMD Fusion E-350 APU (AMD Radeon HD 6310 GPU Model). I installed Ubuntu 10.04. Did all the updates. Almost everything works great: I can see movies (DVD), surf, etc., but I cannot play games --screen frames are very, very slow. I have not installed any hardware drivers. When I search (in Ubuntu) for the hardware drivers, none are found.

I found here, http://wiki.cchtml.com/index.php/Hardware that the graphics card is officially supported: PALM | Radeon HD 6250/6310

If this is of any help, this is what I entered on the terminal:

lspci -nn | grep VGA

00:01.0 VGA compatible controller [0300]: ATI Technologies Inc Device [1002:9802]

^C
sudo apt-get install build-essential cdbs fakeroot dh-make debhelper debconf libstdc++6 dkms libqtgui4 wget execstack libelfg0 dh-modaliases   

[sudo] password for pat:
Reading package lists...
Done Building dependency tree
Reading state
information...
Done debconf is already the newest version. libstdc++6 is already the newest version. libqtgui4 is already the newest version. libqtgui4 set to manually installed. wget is already the newest version. E: Couldn't find package dh-modaliases

I do not know what to do from here.

Questions:

• Where can I locate the drivers?
• How do I install the drivers?