I am working with 24.4.1 LTS. I have a new (to me) laptop with 256gig SDD. I have the appropriate copies of my old data.

I have used gparted to set up my new hard drive with two partitions. It is my desire to create a new fresh installation with the system files on the smaller (30gig) partition and /home on the larger (220+gig) partition.

At install I don't see any option for that setup. When I run the install everything goes on the small partition.

So, how do I instruct the installer to use the large partition for /home? Or failing that how can I copy /home to the new partition and edit etc/fstab to mount it in the proper position. (BTW I tried the edit and royally ducked my laptop and had to start over.

Thank you in advance for your help. I am not a power user but have been using Ubuntu for many years.

I am setting up Linux on my desktop PC, and want to display only two items on the menu (Ubuntu and Windows). If I include menu stanzas in my refind.conf, will this accomplish that task? That being said, I do want a USB drive to be displayed if I plug one in. I ask this, because my fiancee uses my computer, and gets confused if I ask her to boot into Linux, vs Windows. I am also completely blind, and sometimes need to ask for her assistance in verifying which item is selected when booting. Lastly, I noticed there is no PPA repository for Ubuntu releases later than Plucky. Is this because Ubuntu now includes it in their repos? Thanks much for your help.

I've installed an AMD Radeon RX 550 in my PC running Ubuntu 24.04. Installation went fine and the system booted as soon as the card was installed. I didn't need to install any new drivers.

I have two displays: a Hannspree monitor and a Samsung TV.

The colours on the Hannspree monitor are fine, but the Samsung TV colours are clearly not right - most obviously with the yellows and greens which are much too bright (like a highlighter pen). It doesn't matter which display is connected via HDMI and which via VGA - the Hannspree monitor is always fine, the Samsung TV is always a problem.

There was no problem with the colours on the Samsung TV with my old card (an Nvidia), though the system was unstable with that card which is why I replaced it. Adjusting the white balance on the Samsung TV doesn't tone things down enough either, even when I adjust the reds, greens and blues while running DisplayCal with a calibration tool attached.

How can I fix this?

One day recently my Wifi stopped working. If I go to Settings > Network, I see the VPN and Proxy settings but nothing else. No networks are listed.

I tried a hard reset -- powering down, removing the battery, holding down the power button for 30 seconds. That didn't help.

root@xps:/home/myself# lshw -C network
  *-network UNCLAIMED       
       description: Network controller
       product: Comet Lake PCH CNVi WiFi
       vendor: Intel Corporation
       physical id: 14.3
       bus info: pci@0000:00:14.3
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix cap_list
       configuration: latency=0
       resources: iomemory:600-5ff memory:604b11c000-604b11ffff

root@xps:/home/myself# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute 
       valid_lft forever preferred_lft forever                                                                     

It appears I may need iwlwifi. If I run dmesg | grep iwl there is no output. The internet says I can get iwlwifi by manually installing linux-firmware. Presumably this was installed when the wifi connection was working, but has disappeared. I downloaded the .tar.gz from https://gitlab.com/kernel-firmware/linux-firmware and copied the contents of linux-firmware to /lib/firmware. After running sudo update-initramfs -u and rebooting, I still don't see any networks at Settings > Network.

I have also tried establishing a wired connection, but connecting to the router (using an ethernet-to-usb-c adapter) does not result in any networks being listed at Settings > Network.

The computer is a Dell XPS 9500.

When I tried to update the packages it shows a warning as follows

41 packages can be upgraded. run apt list --upgradable to see them. 
w: https://repo.mongodb.org/apt/ubuntu/dists/jammy/mongodb-org/6.0/inrelease: 
key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), 
see the deprecation section in apt-key(8) for details. 
w: http://repo.pritunl.com/stable/apt/dists/jammy/inrelease: 
key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), 
see the deprecation section in apt-key(8) for details.

I am planning to stay with Ubuntu 22.04, and only some packages are getting updated. If I proceed with updating the packages without fixing the issue make any issues?

I installed Ubuntu 24.04 on my Asus Vivobook M1502YA (Ryzen 7 7000 series), but the Wi-Fi doesn’t work at all.

Details:

• Wi-Fi chip: MediaTek MT7902 (lspci shows 01:00.0 Network controller: MEDIATEK Corp. Device 7902)

• Kernel: 6.17.0-20-generic (uname -r)

• What I tried:

  • Upgraded to latest kernel using Mainline

  • Installed linux-firmware

  • Ran sudo ubuntu-drivers autoinstall

  • Checked rfkill (no soft/hard block)

Output:

ip a
# shows only:
1: lo: <LOOPBACK,UP,LOWER_UP> ...
2: enx... (USB tethering interface)
# No wlan0 or wlp interface detected

Problem:
Wi-Fi interface is not detected. USB tethering works, so internet is fine.

Question:

• Is MediaTek MT7902 supported on Ubuntu yet?

• Any workarounds or experimental drivers to get it working?

Thanks in advance!

upgrade failed by sudo apt update && sudo apt upgrade -y also in root and in recovery
rami@rami:~$ uname -a
Linux rami 6.8.0-107-generic #107-Ubuntu SMP PREEMPT_DYNAMIC Fri Mar 13 19:51:50 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux
rami@rami:~$ sudo apt update && sudo apt upgrade -y
[sudo] password for rami: 
Hit:1 http://security.ubuntu.com/ubuntu noble-security InRelease
Hit:13 http://archive.ubuntu.com/ubuntu noble-security InRelease
Fetched 3.622 B in 2s (1.542 B/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
13 packages can be upgraded. Run 'apt list --upgradable' to see them.
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
The following upgrades have been deferred due to phasing:
  libnss-systemd libpam-systemd libsystemd-shared libsystemd0
  libsystemd0:i386 libudev1 libudev1:i386 systemd systemd-dev
  systemd-resolved systemd-sysv systemd-timesyncd udev
0 upgraded, 0 newly installed, 0 to remove and 13 not upgraded.
rami@rami:~$ sudo apt upgrade libnss-systemd
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Error!
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libnss-systemd : Depends: systemd (= 255.4-1ubuntu8.15)
E: Unable to correct problems, you have held broken packages.
rami@rami:~$

and contact support don´t wrok by "get in touch"

400: Bad request

The server didn’t understand the request. https://ubuntu.com/support/contact-us don´t work

Sony VTR, 2009 model, How can I connect this machine to my Desktop 24.04, to both run and save content to Memory stick or whatever. Currently running most recent version of Ubuntu.

I am running 24.04, and await the April release of 26.04. I agree I was vague. My mistake and sorry. The Sony VCR is Model SLV-SE820. It only has Scart in and Scart out on the rear panel and 2 phone female plugs, white and red. The recorder does have on the front panel "line in" Red, White and Yellow. # System Details Report

Report details

• Date generated: 2026-04-08 17:45:42

Hardware Information:

• Hardware Model: Gigabyte Technology Co., Ltd. H110M-S2H
• Memory: 8.0 GiB
• Processor: Intel® Pentium® G4400 × 2
• Graphics: Intel® HD Graphics 510 (SKL GT1)
• Disk Capacity: 878.2 GB

Software Information:

• Firmware Version: F22
• OS Name: Ubuntu 24.04.4 LTS
• OS Build: (null)
• OS Type: 64-bit
• GNOME Version: 46
• Windowing System: Wayland
• Kernel Version: Linux 6.17.0-20-generic

Thanks

I am currently working on Ubuntu 22.04.5 LTS on an HP 15-FD1458TU laptop. I am facing an issue where the Wi-Fi option is not appearing, and the Wi-Fi adapter is also not being detected.

Below is the output of the lshw -C network command:

WARNING: you should run this program as super-user.
  *-network UNCLAIMED       
       description: Network controller
       product: Realtek Semiconductor Co., Ltd.
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: cap_list
       configuration: latency=0
       resources: ioport:3000(size=256) memory:80100000-801fffff
  *-network
       description: Ethernet interface
       physical id: 15
       bus info: usb@4:2
       logical name: enx3460f95c7dfe
       serial: 34:60:f9:5c:7d:fe
       size: 1Gbit/s
       capacity: 1Gbit/s
       capabilities: ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8152 driverversion=v1.12.13 duplex=full firmware=rtl8153a-4 v2 02/07/20 ip=192.168.0.134 link=yes multicast=yes port=MII speed=1Gbit/s
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.

It appears that the Realtek network controller is in an “UNCLAIMED” state, which may indicate a missing or incompatible driver.

Could you please provide guidance or steps to resolve this issue so that the Wi-Fi driver works properly?

Looking forward to your response.

Back in Ubuntu 25.04's terminal (not sure if it was gnome-terminal or not), I was able to set terminal colors in the preferences.

In Ubuntu 25.10, I do not see any option to either create a new color scheme or to set colors manually.

Is this option hidden somewhere, or is there a command line option to do it?

I am on Ubuntu 24.04.4 LTS on a laptop that has the following specs.

• Processor: AMD Ryzen 7 3750H with Radeon Vega Mobile Gfx × 8
• RAM: 16 GB
• AMD Radeon Vega 10 integrated graphics
• NVIDIA GeForce GTX 1650 graphics card

My laptop battery is dead as in it's permanently stuck at 0%. I only use it plugged in(not sure it it's related because the battery has been like this for a long time. Before I used Linux it worked fine on Windows. I disabled it via the Control Panel though.

Additional Drivers says that I'm using the recommended drivers.

Software is up-to-date based on sudo apt update && sudo apt upgrade

As the title says, pretty much every game I ran using Wine and Steam's Proton (proton hotfix) ran into the problem of freezing then crashing. The games run for a few seconds, and I can hear noises and interact with it for a bit, then it crashes

Hades 1 & 2 freeze after about 1 layer so about 8 minutes.

Warframe and Sekiro freeze after a couple hours. Warframe seems to freeze only when I'm doing something if I afk it seems fine for a while. it also freezes within 5 minutes if I try to stream it using OBS (same with the other games)

Terraria runs about 20 minutes before it freezes. If I update my drivers it doesn't freeze, but that's probably because it uses the 2nd GPU not really an option for the other games due to it being really weak.

insider trading the rougelike game freezes when I finish the tutorial. It lasts longer if I run via Steam instead of via Wine, only by a couple of minutes.

The freezing happens faster if I alt tab out or just immediately freezes like Terraria.

Around 20+ games games haven't froze when I play them.

idle cave miner never freezes it seems completely fine even when I alt tab out of it

greyhat a digital detective adventure I beat it in 3 sessions didn't freeze once.

minecraft I used TL launcher it hasn't froze yet

there might be 3 or 4 games that do not freeze either I don't remember clearly because it happens so often I tune it out.

I'm not super sure if it's because of my GPU being over stressed or something, but that doesn't really makes sense how Hades can only run for 8 minutes, but Warframe and Sekiro can run for hours

glmark2 did not crash.

The GPU driver is: nvidia-driver-580-open

tried running steam via terminal started hades only thing that seems off is this

ERROR: ld.so: object '/home/dudenamedan/.steam/debian-installation/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/home/dudenamedan/.steam/debian-installation/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Game Recording - would start recording game 15982993181687939072, but recording for this game is disabled
Adding process 23732 for gameID 15982993181687939072
ERROR: ld.so: object '/home/dudenamedan/.steam/debian-installation/ubuntu12_64/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/home/dudenamedan/.steam/debian-installation/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 23735 for gameID 15982993181687939072
ERROR: ld.so: object '/home/dudenamedan/.steam/debian-installation/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.

I'm going to try switching drivers to 535. It is an option.

Seems to have worked on Hades I am going to try other games and see if they encounter any issues.

I'm using Ubuntu version 24.04.4 on an MSI Crosshair 18

I've done game development with Godot for about a while now and whenever I leave it open then suspend the computer, it closes. I run it through a .desktop file with the following thing edited in nano:

[Desktop Entry]
Name=Godot
Exec=/home/istubedmytoe/Downloads/Godot_v4.6.1-stable_linux.x86_64
Icon=/home/istubedmytoe/Downloads/Godot_icon.png
Type=Application
Terminal=false

Should I make the icon not in my downloads folder? Probably. Will I fix that issue? No, I will forget before I get the chance to do anything about it.

When running godot and suspending the computer I get this error log in the terminal:

================================================================
handle_crash: Program crashed with signal 11
Engine version: Godot Engine v4.6.1.stable.official (14d19694e0c88a3f9e82d899a0400f27a24c176e)
Dumping the backtrace. Please include this when reporting the bug on: https://github.com/godotengine/godot/issues
[1] /lib/x86_64-linux-gnu/libc.so.6(+0x45330) [0x730f18445330] (??:0)
[2] /lib/x86_64-linux-gnu/libnvidia-glcore.so.570.211.01(+0xdd1a20) [0x730ea69d1a20] (??:0)
[3] /home/istubedmytoe/Downloads/Godot_v4.6.1-stable_linux.x86_64() [0x16101f0] (??:0)
[4] /home/istubedmytoe/Downloads/Godot_v4.6.1-stable_linux.x86_64() [0x3b73826] (??:0)
[5] /home/istubedmytoe/Downloads/Godot_v4.6.1-stable_linux.x86_64() [0x3bafa3f] (??:0)
[6] /home/istubedmytoe/Downloads/Godot_v4.6.1-stable_linux.x86_64() [0x3ceccd5] (??:0)
[7] /home/istubedmytoe/Downloads/Godot_v4.6.1-stable_linux.x86_64() [0x5658c0] (??:0)
[8] /home/istubedmytoe/Downloads/Godot_v4.6.1-stable_linux.x86_64() [0x432197] (??:0)
[9] /lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x730f1842a1ca] (??:0)
[10] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b) [0x730f1842a28b] (??:0)
[11] /home/istubedmytoe/Downloads/Godot_v4.6.1-stable_linux.x86_64() [0x48ad7a] (??:0)
-- END OF C++ BACKTRACE --
================================================================

Reported at https://github.com/godotengine/godot/issues/118295

I tried several attempts at installing and uninstalling MySQL Server Community Edition and MySQL Workbench. I'm still getting the error. I cannot connect at all.

When I click on the generic connection (or any other connection) from MySQL Workbench, I get this error message:

Your connection attempt failed for user 'root' to the mySQL server at 127.0.0.1:3306  
Access denied for user 'root'@'localhost'.

I checked and MySQL is listening just fine on port 3306.

I searched Google and YouTube several times with no solution. I'm working on my PhD in data science, and cannot even begin school coursework until I have this up and running.

I have a Brother HL-1212W. I eventually got it working some years ago. After OS upgrades to Xubuntu 22.04 it didn't work. What I describe below is the cleaned up version of what I did, there were many failed iterations before I got here. I will give an answer to this question later, saying how I solved it (Oh yes I did!).

As my network had also changed I did a fresh WPS register of the printer with my WIFI Access point. The Internet light on the printer went green - which says it's connected.

I downloaded the 'Driver install tool' from https://www.brother.co.uk/support/hl-1212w/downloads which gave me the file linux-brprinter-installer-2.2.6-0.gz, which I ungzip'ed and ran. All worked perfectly.

When it asked 'Specify dev uri' I chose cups-brf as a placeholder (that's a braille printer and I was stumbling about in the dark, frankly).

I then went to http://localhost:631/admin on the browser, clicked 'Manage printers', then HL1212W in the list, then 'Administration', then 'Modify printer' and the 'Discovered' Brother printer from the list. When I to the main page for the printer it now showed as a dnssd printer with a long id string.

I queued a test page, it showed in the printer queue on its main page, but the printer went to 'Unable to connect to printer'. I was never able to get past that point no matter what I did. Neither could I find any trace of the printer in the DHCP leases, although using a traffic tracer I did find it had a strange IP address completely outside my subnet.

I just booted and I'm getting this fuzzy and unreadable window. I'm not sure what to do.

After the latest Ubuntu Desktop 25.10 update, my Lenovo IdealPad 1 started crashing and displaying a "kernel panic" message.

Kernel log with journalctl -k -p err:

Jan 26 22:07:14 ubuntu kernel: ACPI BIOS Error (bug): Failure creating named object [\_SB.PCI0.GP17.VGA._STA], AE_ALREADY_EXIST>
Jan 26 22:07:14 ubuntu kernel: ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20240827/psobject-220)
Jan 26 22:07:14 ubuntu kernel: hub 6-0:1.0: config failed, hub doesn't have any ports! (err -19)
Jan 26 22:07:15 ubuntu kernel: lenovo_wmi_hotkey_utilities CE6C0974-0407-4F50-88BA-4FC3B6559AD8: probe with driver lenovo_wmi_h>
Jan 26 22:07:15 ubuntu kernel: i2c i2c-2: SMBus Timeout!
Jan 26 22:07:15 ubuntu kernel: i2c i2c-2: Failed reset at end of transaction (01)
Jan 26 22:07:15 ubuntu kernel: i2c i2c-2: Failed! (01)
Jan 26 22:07:46 ubuntu kernel: xhci_hcd 0000:04:00.0: xHCI host controller not responding, assume dead
Jan 26 22:07:46 ubuntu kernel: xhci_hcd 0000:04:00.0: HC died; cleaning up

I've already tried formatting, but it freezes before that.

8/4/2026

For a while, I used another machine, updating it gradually.

I performed many tests and several formatting processes on almost all the versions mentioned above.

I would like to present some details to the teams for future improvements and integrity checks. I will send more details to Lenovo to avoid exposing sensitive data here:

First, I tried running Memtest and initially it showed a GRUB error. I had to format, reconfigure the BIOS, and reinstall everything until I succeeded. After more than 15 tests, the process passed with Memtest. I reconfigured the BIOS and turned on the computer. I have updated the system about 3 more times since then.

Now, the problem only occurs when I turn on the PC. The same kernel error message appears, I restart, and it works. I left the computer on for more than 24 hours and I am using it; the problem only occurs when it shuts down and turns on again.

However, Memtest shows a machine with less than 6 GB of DDR4 RAM, while the PC model has 8 GB and soldered DDR5.

It could be a bug, I don't know yet, or a counterfeit.

Okay, it's usable, but the problem hasn't been solved yet.

I installed Ubuntu 24.04 on my PC a few moths ago and for these months the Wi-Fi was working fine.

I kept the PC off for a few days. Now that I have turned it back on the Wi-Fi is not working. If I open the Wi-Fi setting page I get the message "No Wi-Fi adapter found".

Following the script in this question I have gathered the wi-fi information here https://termbin.com/pnv0v

The system is updated (Ubuntu 24.04.1 LTS). The kernel version is Linux 6.8.0-51-generic.

I have already tried the following with no success (they were already installed):

sudo apt install linux-firmware
sudo apt install broadcom-sta-dkms

Any suggestion is welcome.

Hope you are doing well. The problem started to show up after I upgraded Ubuntu 23.10 ---> Ubuntu 24.04 LTS (through the Gnome Software Updater).

Here is the output of the sudo apt update -y command:

$ sudo apt update -y
Hit:1 https://archive.ubuntu.petiak.ir/ubuntu noble InRelease
Hit:2 https://archive.ubuntu.petiak.ir/ubuntu noble-updates InRelease
Hit:3 https://archive.ubuntu.petiak.ir/ubuntu noble-backports InRelease
Hit:4 https://dl.google.com/linux/chrome/deb stable InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
19 packages can be upgraded. Run 'apt list --upgradable' to see them.
N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'https://dl.google.com/linux/chrome/deb stable InRelease' doesn't support architecture 'i386'
N: Missing Signed-By in the sources.list(5) entry for 'https://archive.ubuntu.petiak.ir/ubuntu'
N: Missing Signed-By in the sources.list(5) entry for 'https://archive.ubuntu.petiak.ir/ubuntu'
N: Missing Signed-By in the sources.list(5) entry for 'https://archive.ubuntu.petiak.ir/ubuntu'

Disorder parts:

N: Skipping acquire of configured file 'main/binary-i386/Packages' as repository 'https://dl.google.com/linux/chrome/deb stable InRelease' doesn't support architecture 'i386'
N: Missing Signed-By in the sources.list(5) entry for 'https://archive.ubuntu.petiak.ir/ubuntu'
N: Missing Signed-By in the sources.list(5) entry for 'https://archive.ubuntu.petiak.ir/ubuntu'
N: Missing Signed-By in the sources.list(5) entry for 'https://archive.ubuntu.petiak.ir/ubuntu'

I have installed Ubuntu 20.04 by erasing earlier Windows 10. The installation was successful, but after restarting it's giving me this error:

kernel panic - not syncing: VFS: Unable to mount root fs on unknown- block (0,0).

Laptop specs:

   RAM: 8 GB
   SSD: 512 GB
   Used a bootable USB stick as installation media.

[  0.036150] [Firmware Bug]: TSC_DEADLINE disabled due to Errata: please 
update microcode to version: 0x20 (or later)
[  0.603508] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[  0.603551] CPU: 3 PID: 1 Comm: swapper/0 Not tainted 5.15.0-91-generic #101~20.04.1-Ubuntu
[  0.603580] Hardware name: LENOVO 20354/Lancer 5A5, BIOS 9BCN91WW 07/21/2015
[  0.603605] Call Trace:
[  0.603616]  <TASK>
[  0.603626]  dump_stack_lvl+0x4a/0x63
[  0.603644]  dump_stack+0x10/0x16
[  0.603658]  panic+0x15c/0x334
[  0.603673]  mount_block_root+0x14b/0x1f5
[  0.603691]  mount_root+0x112/0x122
[  0.603705]  prepare_namespace+0x13f/0x191
[  0.603722]  kernel_init_freeable+0x2c5/0x2f1
[  0.603740]  ? rest_init+0x100/0x100
[  0.603757]  kernel_init+0x1b/0x150
[  0.603773]  ? rest_init+0x100/0x100
[  0.603788]  ret_from_fork+0x22/0x30
[  0.603805]  </TASK>
[  0.603838] Kernel Offset: 0x2b400000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[  0.603880] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) ]---
_

I'm using pavilion with ryzen5 5625u. I already tried this answer and disabled secure boot according another answer. I also ran sudo systemctl restart network-manager but it says it failed to restart . I also went to software and update for additional drivers, but it has no additional drivers to install.
it says no wifi adapter
output of cat /etc/modprobe.d/iwlwifi.conf
output of cat command

this is the output of ip a # check if you can see wireless card

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
3: usb0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 1000
    link/ether 42:be:a8:da:f2:40 brd ff:ff:ff:ff:ff:ff
    inet 192.168.42.182/24 brd 192.168.42.255 scope global dynamic noprefixroute usb0
       valid_lft 3593sec preferred_lft 3593sec
    inet6 fe80::2ace:eaf0:c3ba:8cf9/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

and output of lspci -knn | grep Network -A3 # This shows card name and driver, if in use.

libkmod: ERROR ../libkmod/libkmod-config.c:712 kmod_config_parse: /etc/modprobe.d/iwlwifi.conf line 8: ignoring bad line starting with '“options'
01:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:b852]
    DeviceName: Realtek Wireless LAN + BT
    Subsystem: Hewlett-Packard Company Device [103c:88e3]
02:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD Controller 980 [144d:a809]

Edit 1 output of my ifconfig is

$ifconfig
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 488  bytes 60829 (60.8 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 488  bytes 60829 (60.8 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlx200db01052d8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.12  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::45dc:7ce4:395e:7bf1  prefixlen 64  scopeid 0x20<link>
        ether 20:0d:b0:10:52:d8  txqueuelen 1000  (Ethernet)
        RX packets 12242  bytes 14993668 (14.9 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 9344  bytes 1371773 (1.3 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

and output of ifup and ifdown is

ifup: no interface(s) specified
ifup: Use --help for help

I've found several posts (e.g., How do I run commands on suspend/return from suspend?, How to run a script before suspend?, Script not running on resume/wakeup in Ubuntu) that describe adding a script in /etc/pm/sleep.d or /usr/lib/pm-utils/sleep.d to execute commands at suspend/resume. However, I haven't been able to get this to work; the script seems to never execute despite having rx permissions for root. I went all the way back to simply having the script execute an echo that outputs to a file just to confirm and that nothing happens. (See script at bottom.)

What I want to accomplish is to have the suspend execute a script that runs rtcwake to implement a wake-up in the early morning for a maintenance script to run. I cannot just execute the maintenance script from cron since the system is suspended. So, I need to resume the system at a specific time in advance and then allow the job to execute.

#!/bin/bash/
case "${1}" in
  suspend)
    #suspend_actions
    echo "suspend" >> text.out
    ;;
  resume)
    #resume_actions
    echo "resume" >> text.out
    ;;
esac

I updated my Ubuntu 14.04 kernel to 4.19, however when I reboot there's a error: Kernel panic - not syncing: System is deadlocked on memory. It remains there, and I don't know what to do.

[    2.642645]  ? md_run_setup+0xbd/0xbd
[    2.642683]  ksys_write+0x52/0xc0
[    2.642727]  xwrite+0x29/0x5a
[    2.642763]  do_copy+0x9b/0xc8
[    2.642788]  write_buffer+0x24/0x34
[    2.642816]  flush_buffer+0x2b/0x84
[    2.642843]  __gunzip+0x275/0x31c
[    2.642869]  ? bunzip2+0x39c/0x39c
[    2.642895]  ? __gunzip+0x31c/0x31c
[    2.642922]  gunzip+0xe/0x11
[    2.642947]  ? md_run_setup+0xbd/0xbd
[    2.642975]  unpack_to_rootfs+0x163/0x2b5
[    2.643005]  ? md_run_setup+0xbd/0xbd
[    2.643033]  ? clean_rootfs+0x182/0x182
[    2.643063]  populate_rootfs+0x5d/0x116
[    2.643092]  ? clean_rootfs+0x182/0x182
[    2.643121]  do_one_initcall+0x4a/0x1c6
[    2.643150]  kernel_init_freeable+0x193/0x233
[    2.643182]  ? rest_init+0xb0/0xb0
[    2.643208]  kernel_init+0xa/0x110
[    2.643235]  ret_from_fork+0x35/0x40
[    2.643331] ---[ end Kernel panic - not syncing: System is deadlocked on memory
[    2.643331] ]---

1. I have made my kernel several times and installed the modules, and there's no error showing in the old terminal.
2. I used GParted to enlarge my /dev/sda1, and I have set the swap space, all done.
3. Everything is pretty well with the old kernel. I can login and use Ubuntu smoothly.

I can boot up from the USB, but after I select the language (with normal kernel or HWE kernel) on 16.04.5 server, I get this error. I got this Kernel panic - not syncing boot message with an HWE kernel:

[    0.040000] [Firmware Bug]: the BIOS has corrupted hw-PMU resources (MSR 38d is 330)
[    0.196003] ACPI Error: Field [CDW3] at bit offset/length 64/32 exceeds size
target Buffer (64 bits) (20170831/dsopcode-235)
[    0.196003] ACPI Error: Method parse/execution failed _SB._OSC, AE_AML_BUFFER_LIMIT (20170831/psparse-550)
[    0.678163] ERST: Failed to get Error Log Address Range.
[    0.969243] mce: [Hardware Error]: CPU 0: Machine Check Exception: 4 Bank 8: fa0000000008000b2
[    0.970201] mce: [Hardware Error]: TSC 5998d310ee MISC 80000
[    0.970840] mce: [Hardware Error]: PROCESSOR 0:206c2 TIME 1274413556 SOCKET 0 APIC 0 microcode c
[    0.971816] mce: [Hardware Error]: Run the above through 'mcelog --ascii'
[    0.972570] mce: [Hardware Error]: Machine check: Processor context corrupt
[    0.973343] Kernel panic - not syncing: Fatal machine check
[    0.973977] Kernel Offset: 0x34600000 from 0xffffffff81000000 (relocation range: 0xffffffff800000
-0xffffffffbfffffff)
[    0.975176] Rebooting in 30 seconds...

Problem
USB Ports (2.0) keep resetting causing connected peripherals to stop working after some time.

Hardware
Motherboard: ASUS J1800I-C
CPU: Intel(R) Celeron(R) CPU J1800 @ 2.41GHz
RAM: 4GB

Number of units: > 100 devices working as payment kiosks, all showing same issue.

Connected USB devices (lsusb)

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 013: ID 0dd4:015d Custom Engineering SPA
Bus 001 Device 012: ID 12d1:1506 Huawei Technologies Co., Ltd. Modem/Networkcard
Bus 001 Device 011: ID 23d8:0285 
Bus 001 Device 010: ID 1ff7:0013 CVT Electronics.Co.,Ltd CVTouch Screen (HID)
Bus 001 Device 009: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 001 Device 002: ID 0e8f:0022 GreenAsia Inc. multimedia keyboard controller
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

OSs reproducing the problem:
Ubuntu 14.04-server (64bit)
Ubuntu 16.04-server (64bit)
Ubuntu 18.04-server (64bit)
Ubuntu 14.04 (server&desktop) (32bit)
Ubuntu 16.04-server (32bit)
Tried the above OSs with both UEFI & BIOS boot.

OSs NOT producing any problem with the same hardware:
Windows 7

Symptoms:
On startup, all goes well and USB devices are working for 15~60 minutes. After this time, one or more ports will start resetting with errors coming in dmesg:

    [ 1484.129248] perf interrupt took too long (2520 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
    [ 2645.972003] usb 1-4-port1: cannot reset (err = -71)
    [ 2646.236044] usb 1-4.1: reset full-speed USB device number 4 using xhci_hcd
    [ 2646.324439] usb 1-4.1: ep 0x1 - rounding interval to 64 microframes, ep desc says 80 microframes
    [ 2647.558156] usb 1-4.1: reset full-speed USB device number 4 using xhci_hcd
    [ 2647.646546] usb 1-4.1: ep 0x1 - rounding interval to 64 microframes, ep desc says 80 microframes
    [ 3942.619669] usb 1-4-port1: cannot reset (err = -71)
    [ 3942.619742] usb 1-4-port1: cannot reset (err = -71)
    [ 3942.619821] usb 1-4-port1: cannot reset (err = -71)
    [ 3942.619861] usb 1-4-port1: cannot reset (err = -71)
    [ 3942.619901] usb 1-4-port1: cannot reset (err = -71)
    [ 3942.619905] usb 1-4-port1: Cannot enable. Maybe the USB cable is bad?
    [ 3942.690031] usb 1-4.1: reset full-speed USB device number 4 using xhci_hcd
    [ 3942.690038] usb 1-4.1: hub failed to enable device, error -22
    [ 3942.762176] usb 1-4.1: reset full-speed USB device number 4 using xhci_hcd
    [ 3943.170800] usb 1-4.1: device not accepting address 4, error -22
    [ 3943.242967] usb 1-4.1: reset full-speed USB device number 4 using xhci_hcd
    [ 3943.651734] usb 1-4.1: device not accepting address 4, error -22
    [ 3943.653063] usb 1-4.1: USB disconnect, device number 4
    [ 3943.751603] usb 1-4.1: new full-speed USB device number 8 using xhci_hcd
    [ 3943.840892] usb 1-4.1: New USB device found, idVendor=1ff7, idProduct=0013
    [ 3943.840899] usb 1-4.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
    [ 3943.841068] usb 1-4.1: ep 0x1 - rounding interval to 64 microframes, ep desc says 80 microframes
    [ 3943.850194] input: HID 1ff7:0013 as /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4.1/1-4.1:1.0/0003:1FF7:0013.0005/input/input11
    [ 3943.850467] hid-multitouch 0003:1FF7:0013.0005: input,hiddev0,hidraw3: USB HID v1.11 Mouse [HID 1ff7:0013] on usb-0000:00:14.0-4.1/input0
    [ 4215.269989] usb 1-4-port1: cannot reset (err = -71)
    [ 4215.270192] usb 1-4-port1: cannot reset (err = -71)
    [ 4215.270264] usb 1-4-port1: cannot reset (err = -71)
    [ 4215.270343] usb 1-4-port1: cannot reset (err = -71)
    [ 4215.270383] usb 1-4-port1: cannot reset (err = -71)
    [ 4215.270386] usb 1-4-port1: Cannot enable. Maybe the USB cable is bad?
    [ 4215.342214] usb 1-4.1: reset full-speed USB device number 8 using xhci_hcd
    [ 4215.342221] usb 1-4.1: hub failed to enable device, error -22
    [ 4215.358192] hub 1-4:1.0: hub_ext_port_status failed (err = -71)
    [ 4215.358263] usb 1-4-port1: cannot reset (err = -71)
    [ 4215.622566] usb 1-4.1: reset full-speed USB device number 8 using xhci_hcd
    [ 4215.755250] usb usb1-port4: disabled by hub (EMI?), re-enabling...
    [ 4215.755273] usb 1-4: USB disconnect, device number 3
    [ 4215.755277] usb 1-4.1: USB disconnect, device number 0
    [ 4216.031181] usb 1-4.1: device not accepting address 8, error -22
    [ 4216.064588] usb 1-4.2: USB disconnect, device number 5
    [ 4216.065324] usb 1-4.3: USB disconnect, device number 6
    [ 4216.065632] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
    [ 4216.065647] option 1-4.3:1.0: device disconnected
    [ 4216.065760] huawei_cdc_ncm 1-4.3:1.1 wwx001e101f0000: unregister 'huawei_cdc_ncm' usb-0000:00:14.0-4.3, Huawei CDC NCM device
    [ 4216.079590] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
    [ 4216.079611] option 1-4.3:1.2: device disconnected
    [ 4216.079752] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
    [ 4216.079768] option 1-4.3:1.3: device disconnected
    [ 4216.148026] usb 1-4.4: USB disconnect, device number 7
    [ 4216.148183] usblp2: removed
    [ 4216.387741] usb 1-4: new high-speed USB device number 9 using xhci_hcd
    [ 4216.517658] usb 1-4: New USB device found, idVendor=05e3, idProduct=0610
    [ 4216.517666] usb 1-4: New USB device strings: Mfr=0, Product=1, SerialNumber=0
    [ 4216.517670] usb 1-4: Product: USB2.0 Hub
    [ 4216.518341] hub 1-4:1.0: USB hub found
    [ 4216.518643] hub 1-4:1.0: 4 ports detected
    [ 4216.792385] usb 1-4.1: new full-speed USB device number 10 using xhci_hcd
    [ 4216.885849] usb 1-4.1: New USB device found, idVendor=1ff7, idProduct=0013
    [ 4216.885855] usb 1-4.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
    [ 4216.886042] usb 1-4.1: ep 0x1 - rounding interval to 64 microframes, ep desc says 80 microframes
    [ 4216.895096] input: HID 1ff7:0013 as /devices/pci0000:00/0000:00:14.0/usb1/1-4/1-4.1/1-4.1:1.0/0003:1FF7:0013.0006/input/input13
    [ 4216.951230] hid-multitouch 0003:1FF7:0013.0006: input,hiddev0,hidraw2: USB HID v1.11 Mouse [HID 1ff7:0013] on usb-0000:00:14.0-4.1/input0

Things I tried and did NOT solve the problem:
I tried to disable autosuspend for USB ports by adding linux kernel cmdline: usbcore.autosuspend=-1 among many other options and they all failed.
I also tried to change multiple BIOS options related to USB, nothing helped.


Useful Facts:
- All USB 2.0 4-ports are causing the problem.
- The board has single USB 3.0 port which seems unaffected by the problem.
- Using powered USB hub connected to the USB3 port, then connecting all USB devices to it seems to solve the problem.
- Using 32bit version of the same OS seems to solve the USB problem. Tested some kiosks with 32bit installation for 3 days uptime and there were no single dmesg warning or error.

Question:
How can I solve this problem on my 64bit Ubuntu 16.04 ?

Converting to 32bit is an unrealistic solution for me as it requires the reinstallation of over 100 devices. Besides, some of my equipment comes with 64bit proprietary SDK.

Update 1:
The problem seems to be unrelated to the CPU architecture and it happened after a while on Ubuntu 14.04-32bit and 16.04-32bit

This is my first time trying to do something like this so please excuse my incompetence. I've been trying to run Linux on a virtual machine.

When I created the new VM with VirtualBox I chose the Ubuntu 32-bit version of Linux and then I chose all the default selections from there.

As for the start-up disk I chose the ISO that I downloaded from here and I get this:

[    21.938390]  [<c134f66f>] ? vsnprintf+0xdf/0x380
[    21.938791]  [<c1373131>] rdmsrl_safe_on_cpu+0x41/0x60
[    21.939193]  [<c1ad6eb7>] pt_init+0x41/0x26a
[    21.939555]  [<c1002127>] ? do_one_initcall+0xb7/0x1f0
[    21.939912]  [<c1ad6e76>] ? intel_cqm_init+0x2f1/0x2f1
[    21.940077]  [<c1002132>] do_one_initcall+0xc2/0x1f0
[    21.940344]  [<c1ad6e76>] ? intel_cqm_init+0x2f1/0x2f1
[    21.940700]  [<c10809a8>] ? parameq+0x18/0x70
[    21.941027]  [<c1080d86>] ? parse_args+0x386/0x4a0
[    21.941373]  [<c1ac8e3d>] kernel_init_freeable+0x163/0x1ff
[    21.941700]  [<c1ac85c7>] ? initcall_blacklist+0x97/0x97
[    21.942030]  [<c16fe3a0>] kernel_init+0x10/0xe0
[    21.942323]  [<c108ca31>] ? schedule_tail+0x11/0x50
[    21.942625]  [<c1711041>] ret_from_kernel_thread+0x21/0x30
[    21.942919]  [<c16fe390>] ? rest_init+0x70/0x70
[    21.943273] Code: Bad EIP value.
[    21.944073] EIP: [<feb9970b>] 0xfeb9970b SS:ESP 0068:f58bbe54
[    21.947887] ---[ end trace 6e42211e906c2549 ]---
[    21.960622] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
[    21.960622]
[    21.962185] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
[    21.962185]

I recently (approx 6m) bought a refurbished laptop online, which had two hard disks installed. I installed Ubuntu on one of them and run the laptop as a dual-boot Windows/Linux machine - this has been working without significant issues. However, recently I encountered regular issues with the machine, where Ubuntu wanted to send operation system error messages to HQ, and a few applications just suddenly refused to load. I don't think it is a virus as I ran clamTK with no discoveries of infection. Hence I followed up with potential hardware issues and I encountered the below while trouble-shooting.

I don't quite understand the report -- is this hard drive in terminal decline, or are these tests failing simply because this is the Windows partition (and my laptop issue doesn't lie with the hard disk)?

I am an amateur Linux-user, this is my first machine running Linux.

I have a brother HL-L2340DW.

The "Printers" application shows it is installed.

However, "Print Test Page" is greyed-out.

Also, when I try printing a pdf nothing gets sent to the print queue.

Any ideas how to troubleshoot?

Three days ago I updated Ubuntu 12.04 on our server (mainly to get new OpenSSL libs), rebooted, everything was fine. Then after 6 hours the server failed to respond. I rebooted again and it worked for another 12 hours. Then it halted.

This morning after another reboot I found bad_area_nosemaphore and do_page_fault messages on the screen.

207.996568] [<c15b1c65>] ? spurious_fault+0x75/0xdb
207.996617] [<c115c647>] ? __d_alloc+0xd7/0x110
207.996666] [<c15b1e60>] ? vmalloc_fault+0x195/0x195
207.996820] [<c1597bb1>] bad_area_nosemaphore+0x17/0x19
207.996873] [<c15b2272>] do_page_fault+0x412/0x4b0
207.996922] [<c11d9e17>] ? ext4_lookup+0x27/0x30
207.996971] [<c11613b9>] ? vfsmount_lock_local_unlock+0x19/0x20
207.997024] [<c1162c0a>] ? mntput_no_expire+0x2a/0xd0
207.997075] [<c1162cc8>] ? mntput+0x18/0x30
207.997122] [<c1150eaa>] ? path_put+0x1a/0x20
207.997170] [<c1154760>] ? path_lookupat+0xb0/0x690
207.997220] [<c15b1e60>] ? vmalloc_fault+0x195/0x195
207.997270] [<c15af281>] error_code+0x3d/0x44
207.997318] [<c12b11a3>] ? idr_get_empty_slot+0xb3/0x160
207.997369] [<c12b14a4>] ? idr_get_new_above_int+0x14/0x70
207.997421] [<c159dc84>] ? check_acl+0x9d/0x10c
207.997469] [<c12b1548>] ? idr_get_new_above+0x8/0x30
207.997520] [<c1181884>] ? inotify_add_to_idr+0x64/0x90
207.997571] [<c1181c31>] ? inotify_new_watch+0x91/0xe0
207.997621] [<c1181ee3>] ? sys_inotify_add_watch+0xf3/0x120
207.997673] [<c15b5c5f>] ? sysenter_do_call+0x12/0x12

Again the server failed to respond, but after rebooting it started without errors.

I'm trying to start my torrent client using a cron job. Following is the job I added to crontab file(contab -e)

00 20 17 07 * transmission-gtk

I waited for the time but transmission-gtk didn't startup. but when I try a simple command like "mkdir test". It works. Any ideas friends

I gonna update my LibreOffice 3.5.7.2 to 4.0.1. Manual shouts If you have a previous version of LibreOffice already installed, then you will need to de-install it before proceeding further. But how do I uninstall it properly? P.S.I have Ubuntu 12.04.