I am running Ubuntu 24.04.3 LTS on a laptop and my desktop is GNOME.

I recently installed Ubuntu onto a laptop and straight off the bat, the speakers weren't showing and the only sink was dummy output. I found that plugging in my wired headphones allowed sound to be played from the speakers.

Running:

aplay -l

Prints:

**** List of PLAYBACK Hardware Devices ****
card 0: sofrt5682 [sof-rt5682], device 0: Speakers (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofrt5682 [sof-rt5682], device 1: Headset (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofrt5682 [sof-rt5682], device 2: HDMI1 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofrt5682 [sof-rt5682], device 3: HDMI2 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofrt5682 [sof-rt5682], device 4: HDMI3 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofrt5682 [sof-rt5682], device 5: HDMI4 (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofrt5682 [sof-rt5682], device 7: Bluetooth (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Then running:

aplay -D plughw:0,0 /usr/share/sounds/alsa/Front_Center.wav

Plays the front center sound without issues.

I am really not sure how to fix this problem and any help is greatly appreciated.

Thanks in advance!

My Epson ET-3760 disappeared and can't be found. On my other two laptop, it works without any issue. All are on the same, latest release and network. Can't ping it on one, but can on the anothers. If I can't resolve this I may have to reinstall (ouch) or move to another distro. Thanks for your help.

I did a data backup from my old mobile on my kubunut pc. Now I have a fresh fairfone 6 and would like to transfer images from my kubuntu pc to my new mobile.

I have then connected it successfully via an usb cable, which can transfer data, too. But I can only get single files to my mobile and with more than 1000 images that will become bothersome soon.

So what is the best way to get the contents of several image folders to my new mobile? Is there maybe an option in the right click menu of dolphin available like "send this folder to my mobile. pronto!"

I would of course also not be averse to a bash copy solution.

I tried clicking through the options and looking for plugin and was not successful so far. kde-connect seems more of a way to do things on the mobile itself like "please ring" or "be my touchpad" than a way to access the moble phone ona folder level.

I'm trying to do a release upgrade from Ubuntu 22.04 to 24.04 using do-release-upgrade.

I am getting these errors:

Err Upgrade tool
  503 Service Unavailable [IP: 91.189.91.82 80]
Fetched 833 B in 6s (136 B/s)
WARNING: root:file 'noble.tar.gz' missing
Failed to fetch
Fetching the upgrade failed. There may be a network problem.

I have verified the network and availability of the specified target IP, and there were no issues. I also tried both US and normal repositories in /etc/apt/sources.list

All of my apt update/upgrade patching went fine. There were no issues there.

I have three screens connected via two graphics adapters on a Ubuntu 24 LTS machine. This works smoothly, but there is something that bugs me:

The login screen is only the left one. I'd like the middle monitor to display the login prompt. How can I define which screen is active during login or when the screen is locked?

The lightdm solution pointed out in Choose lightdm login screen location in multi monitor setup does not work for me.

I have just installed Phpmyadmin and the process was just fine. I am working in Xubuntu 22.04 using Mysql. But when i try to run Phpmyadmin, i am receiving this:

<?php
declare(strict_types=1);
use PhpMyAdmin\Routing;
if (! defined('ROOT_PATH')) {
    // phpcs:disable PSR1.Files.SideEffects
    define('ROOT_PATH', __DIR__ . DIRECTORY_SEPARATOR);
    // phpcs:enable
}
global $route, $containerBuilder;
require_once ROOT_PATH . 'libraries/common.inc.php';
$dispatcher = Routing::getDispatcher();
Routing::callControllerForRoute($route, $dispatcher, $containerBuilder);

What am i missing or what i did wrong?

I installed Ubuntu 24.04 on my Windows 10 PC, and in a few weeks all of a sudden I tried to boot and it said make sure your HDD is in RAID mode, so I changed it. Then it would not boot to Windows at all, so I changed it back to AHCI, and I tried to recover Windows 10, but I had no luck at all.

My PC is an Asus z170k MB with a Seagate 1TB HDD, 32GB 2133 RAM and a Core i5 7500 processor 3.5GHz using Intel onboard graphics. It worked fine for weeks, then this happened. I checked the BIOS and Secure Boot was back on, so I deleted the keys and turned it off. I am not sure if I should have it on UEFI or other OS.

I have a laptop in which I have a dual boot for Ubuntu and Windows 11. Today when I tried to open Ubuntu it was showing a Busybox error message.

I tried running cat /proc/partitions but that wasn't working. The reboot command is also not working.

When I write the exit command it shows:

Gave up waiting for root file system device. Common Problems:
 -Boot args (cat /proc/cmdline)
   -Check rootdelay= (did the system wait long enough?)
 -Missing modules (cat /proc/modules; ls /dev)
Alert! UUID=59123347-5966-4003-add4-f0afb90a7f5f does not exist.
Dropping to a shell!

Please help me out as all of my codes are in this system and I cannot access them.

I have an ~1 year old Lenovo Legion 7i laptop with Intel Core i9 processor and NVIDIA RTX4070 that I have recently made the jump from Windows to Ubuntu (24.04.3 LTS). While I am brand new to Linux and a bit over my head, the transition has overall gone very smoothly and I love the OS. However, I have one persistent problem that I have not been able to resolve. The audio to my Google Pixel Buds Pro 2 is highly distorted and choppy. These same ear buds worked fine with this laptop on the previous Windows OS and continue to work fine with other devices (my Android phone and work laptop). Audio from the laptop speakers themselves is normal. Another pair of bluetooth headphones (Sony) exhibited the same issue, but I do not intend to use these moving forward. The source of the audio does not seem to matter - i have the same issues regardless of web browser (I've tried Brave [preferred], Firefox, and Chrome), website, or other media players. I am using the ear buds in very similar locations to before so unlikely to be external interference.

Troubleshooting steps that I've tried based on my own research online but have not helped:

1. Updated drivers

2. Ensured that High Fidelity Playback (A2DP Sink) is enabled in sound settings

3. Forget and Repair device multiple times.

4. Disabled noise cancellation through the buds app.

5. Disabled multipoint connection and audio switch through the buds app.

6. Disabled browser hardware acceleration.

7. Ensured that system is using fully updated Pipewire and performed a Wireplumber reset.

8. Forced a consistent sampling rate at both 48kHz and 44.1kHz

9. Forced a fixed buffer size (quantum) of both 1024 and 512

10. Disabled the Autosuspend function

I am hoping someone can offer some insight into what I may be missing that could be contributing to this issue. Thank you so much!

I've had this issue for several days. I've tried this on both a Lenovo IdeaPad and an HP laptop. I installed Ubuntu 24.04.3. It worked fine for a while. Then when I try to boot up, it just sits there and does nothing. I've tried installing Boot-Repair, but the machine can't find the repository. I can't add the repository either. I've tried to fix the bootloader without success. I tried to mount the root filesystem from a live USB. That basically goes nowhere. I don't think that both laptops could have the same hardware issue.

I did notice that sometimes I will try to use GIMP 3.0. When I exit and try to go back in later, GIMP doesn't open and that's when things go awry. I don't want to reinstall Ubuntu (again), but that is the only way I know to get things up and running again. Is it possible that GIMP or some other app is crashing the OS? What can I do?

The Bluetooth toggle keeps switching off after I press it in the settings menu. When I try to turn it on via the top right menu it just stays forever trying to turn on but never manages to. The only solution I have found that works is running the following commands:

~ $ sudo rmmod btusb 2>/dev/null
~ $ sudo rmmod btintel 2>/dev/null
~ $ sleep 1
~ $ sudo modprobe btusb

The only issue is that I have to run this every single time I log in to the computer (locking and unlocking screen will again disable the ability to turn on BT) and this is very annoying. I have added to ~/.bashrc but I have to always insert my password again and open the terminal, etc.

My questions is, is there known way to solve this once and for all (my search yield no results, I have tried everything), in negative case, how can I run the commands every time I unlock the screen?

Specs: Ubuntu 25.10 (but also tested on 24); Legion Pro 5i Gen 10 (16" Intel) with RTX 5070 Ti;

lsusb output:

~ $ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 17ef:f006 Lenovo Idea5003
Bus 003 Device 003: ID 048d:c195 Integrated Technology Express, Inc. ITE Device(8258)
Bus 003 Device 004: ID 1d5c:5510 Fresco Logic Frescologic USB2.0 HUB
Bus 003 Device 005: ID 0403:6011 Future Technology Devices International, Ltd FT4232H Quad HS USB-UART/FIFO IC
Bus 003 Device 006: ID 30c9:00f8 Luxvisions Innotech Limited Integrated Camera
Bus 003 Device 007: ID 413c:1010 Dell Computer Corp. USB 2.0 Hub [MTT]
Bus 003 Device 008: ID 0489:e111 Foxconn / Hon Hai Wireless_Device
Bus 003 Device 009: ID 0b00:5409 INGENICO USB2.1 Hub
Bus 003 Device 010: ID 1038:1872 SteelSeries ApS Rival 3 Wireless Gen 2
Bus 003 Device 011: ID 413c:c010 Dell Computer Corp. Dell DA310
Bus 003 Device 012: ID 413c:2110 Dell Computer Corp. Dell Wired Multimedia Keyboard
Bus 003 Device 013: ID 0424:2514 Microchip Technology, Inc. (formerly SMSC) USB 2.0 Hub
Bus 003 Device 014: ID 0bda:1100 Realtek Semiconductor Corp. HID Device
Bus 003 Device 015: ID 046d:08e5 Logitech, Inc. C920 PRO HD Webcam
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 004 Device 002: ID 1d5c:5500 Fresco Logic Frescologic USB3.1Gen2 HUB
Bus 004 Device 003: ID 0bda:8153 Realtek Semiconductor Corp. RTL8153 Gigabit Ethernet Adapter
Bus 004 Device 004: ID 0b00:0409 INGENICO USB3.2 Hub

I am new to Linux/Ubuntu. I have installed Ubuntu 24.04 on my Mac laptop which never had a problem connecting with WiFi. After the install there is no wireless internet connection. If I open the system menu in the topbar (panel) it does not show an icon for WiFi. Somehow have I made an Ubuntu installation without internet? How can I turn it on?

Terminal nmcli device shows:

DEVICE  TYPE      STATE                   CONNECTION 
lo      loopback  connected (externally)  lo

Laptop: Macbook Pro, which has no ethernet port to make a wired connection.

Update: looking in Software & Updates, Additional Drivers, I found that my wireless network adapter is not working. (Network adapter is: Broadcom.Inc BCM4360 802.11ac Dual Band Wireless Network Adapter)

Update 2: Thanks for the tips. I also found that my problem is a common one with Broadcom Network adapters. See this question: Installing Broadcom Wireless Drivers

Update 3: I have used USB tethering from my mobile phone to go online and work through the actions suggested in the above link. I am glad to report that it has worked. I got my MacBook connected to WiFi. Let's see how it performs and I will report back.

This should be an easy one (or at least it is on my Win10) - but, how can I put different backgrounds on each 'joined' monitor/display?

ubuntu 24.04lts wayland Gateway laptop

#1 1680x1050 16:10

#2 1920x1080 16:9

Nitrogen doesn't seem to work - nothing on dual monitors in it... click apply and nothing... messed with dconf editor and tweaks - nothing... probably does not like Wayland ;-)

"paste two images together and have them span the two monitors as a single desktop wallpaper" convoluted and if one monitor gets unplugged like taking laptop out, then desktop goes to heck!

I'm on 24.04LTS and have two iPods. One is recognised by gtkpod the other is not. This one is an iPod Touch A1288. I would like to know where the gvfs services are configured and how I can force gvfs-afc to be used with this ipod.

lsusb:

Bus 001 Device 011: ID 05ac:1293 Apple, Inc. iPod Touch 2.Gen

I run a Kubernetes cluster on a few Ubuntu servers. In the last week 2 of the servers reported extremely high memory usage, and I saw that init process uses almost 30GB of RAM.

From node_exporter metrics, I see that the growth happened over 2 minutes.

Do you have any ideas what could cause this and how I can fix it?

Installed version: init/now 1.66ubuntu1 amd64 [installed,local]

systemd version: systemd/now 255.4-1ubuntu8.10 amd64 [installed,upgradable to: 255.4-1ubuntu8.11]

Kernel version: linux-image-6.8.0-64-generic/now 6.8.0-64.67 amd64 [installed,local]

init process high memory usage:

Memory usage growth:

EN:My operating system: Ubuntu 25.10

The error message I received while installing the Minecraft.deb file:

The following packages have unmet dependencies:
  minecraft-launcher: Bağımlılıklar: libgdk-pixbuf2.0-0 (>= 2.22.0) but it is not installable

Please help.

TR:

İşletim sistemim:Ubuntu 25.10

Minecraft.deb dosyasını yüklerken aldığım hata mesajım :

The following packages have unmet dependencies:
  minecraft-launcher: Bağımlılıklar: libgdk-pixbuf2.0-0 (>= 2.22.0) but it is not installable

lütfen yardımcı olun. UPDATE:Now I use Kubuntu 25.10

A person I know had their legacy boot computer set up for an Ubuntu and Windows 7 dual boot. He asked me to update the Windows 7 side to Windows 10, so I did an in place update and immediately regretted it. I had backed up the Windows 7 data but not the Ubuntu side. I thought at first that Windows had just erased the grub bootloader, but I have a feeling that it actually deleted the Ubuntu partitions.

I made an Ubuntu live USB and booted to it.

Results of the lsblk command:

ubuntu@ubuntu:~$ lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
loop0    7:0    0   2.1G  1 loop /rofs
loop1    7:1    0     4K  1 loop /snap/bare/5
loop2    7:2    0 400.8M  1 loop /snap/gnome-3-38-2004/112
loop3    7:3    0  91.7M  1 loop /snap/gtk-common-themes/1535
loop4    7:4    0 163.3M  1 loop /snap/firefox/1635
loop5    7:5    0    62M  1 loop /snap/core20/1587
loop6    7:6    0    47M  1 loop /snap/snapd/16292
loop7    7:7    0   284K  1 loop /snap/snapd-desktop-integrat
loop8    7:8    0  45.9M  1 loop /snap/snap-store/582
sda      8:0    0 596.2G  0 disk
├─sda1   8:1    0   100M  0 part
├─sda2   8:2    0     1K  0 part
├─sda5   8:5    0     4G  0 part [SWAP]
├─sda6   8:6    0 102.2G  0 part
├─sda7   8:7    0   544M  0 part
└─sda8   8:8    0  98.6G  0 part
sdb      8:16   1  28.8G  0 disk
├─sdb1   8:17   1   3.6G  0 part /cdrom
├─sdb2   8:18   1   4.1M  0 part
├─sdb3   8:19   1   300K  0 part
└─sdb4   8:20   1  25.3G  0 part
sdc      8:32   1  14.6G  0 disk
├─sdc1   8:33   1   200M  0 part
└─sdc2   8:34   1  14.4G  0 part /media/ubuntu/UNTITLED
sr0     11:0    1  1024M  0 rom
ubuntu@ubuntu:~$

Results of the fdisk -l command:

Disk /dev/loop2: 400.8 MiB, 420263904 bytes, 820032 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop3: 91.69 MiB, 96141312 bytes, 187776 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop4: 163.29 MiB, 171225088 bytes, 334424 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop5: 61.96 MiB, 64970752 bytes, 126896 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop6: 46.96 MiB, 49242112 bytes, 96176 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop7: 284 KiB, 290816 bytes, 568 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/sda: 596.17 GiB, 640135028736 bytes, 1250263728 sectors
Disk model: WDC WD6400AAKS-0
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00001346

Device     Boot     Start        End     Sectors    Size Id Type
/dev/sda1  *         2048      206847      204800    100M 7 HPFS/NTFS/exFAT
/dev/sda2          208894  1047531087  1047322194  499.4G 5 Extended
/dev/sda5       616753152   625137663     8384512     4G 82 Linux swap / Solaris
/dev/sda6       625139712   839548814   214409103  102.2G 7 HPFS/NTFS/exFAT
/dev/sda7       839548928   840663039     1114112   544M 27 Hidden NTFS WinRE

On Windows 10 Disk Management there is a 98.63 GB section that can't be read which is the same size as sda8 on the Linux side. Could that be where the Ubuntu partition is, or is it gone and if so, do I need to look at data recovery options?

All of my programs have either lost the menu bar or it shows up in my panel(as in VLC).

Is there some global setting causing that?

I have connected 4k monitor with ubuntu laptop and I am getting 4k 30 FPS. If I run 4k without scaling its normal. But when I do fractional scaling, performance takes a hit. My cursor is very slow, same applies to any video played on youtube (Even playing Youtube videos in 1080p stutters). It looks like as if I am getting only 15 FPS and everything shown on monitor is affected. Is there anything I can do to solve above problem ?

I have my Lenovo ThinkPad X220 connected to an Acer VG0 27" 1440p screen via DisplayPort. Periodically, the screen flicks off for several seconds. Usually it comes back, but occasionally it will switch off until I unplug the screen and reconnect it.

I added a port replicator, which allows me to connect a second screen and use the laptop closed. The second screen is an LG 23" 1080p connected via DisplayPort->HDMI. This screen doesn't flicker, so it's something to do with either the higher resolution of the Acer or the native DisplayPort connection (or both).

I've found a lot of conflicting information on the error message that appears in dmesg after a flicker:

[ 2779.680083] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
[ 2779.680147] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder B
[ 2779.680176] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder B FIFO underrun

Sometimes it's pipe/transcoder A. Either way, it's the same block of messages. Extensive searching has turned up that this is a simple diagnostic message, with no particular impact on use, to the same symptoms I'm experiencing with display flickering, and no clear resolution. Some posts state that this was fixed in older kernels than I'm running - 5.4.0-37.

The flicker happens very randomly and is difficult to induce, but often happens while scrolling in Firefox, dropping down my Guake terminal or participating in a Zoom meeting.

I've tried many different kernel flags from the various posts, which seem to point to either 1) the IOMMU in this Sandy Bridge i7 or 2) C-States and power management. Nothing has reliably fixed the problem. Some of the options I've tried: "i915.enable_rc6=0 i915.semaphores=1 pcie_aspm=force i915.enable_psr=0 i915.edp_vswing=2 intel_iommu=on,igfx_off processor.max_cstate=1 intel_idle.max_cstate=1". I'm currently running with "i915.enable_rc6=1 i915.enable_fbc=1 i915.powersave=1 i915.modeset=1 i915.lvds_downclock=1" and it still flickers. One example: Flickering screen + CPU pipe B FIFO underrun when I use the termnal

I replaced the motherboard in my X220 and there's damage to the NIC, so it's not impossible there is a hardware fault on this board, but since it does work for a reasonable amount of time and the second screen is stable, I'm confident it's not this board. I haven't tried the Acer screen on the original board, but connecting the original board to 1080p screens via DP->HDMI had no issues. I don't have another DP screen to test with. I have tried a different DP cable without success. It also flickers if it's connected to the laptop's DP output.

The screen is not the problem as it works on another laptop via DP. I've also tried connecting the screen to the X220 via HDMI, which is stable but it seems to max out at 1080p resolution, and I specifically want the extra pixels.

Hardware is:

• Core i7 2620m with 16GB DDR3
• integrated Intel HD Graphics 3000
• Acer VG270UPbmiipx via DP
• LG IPS236v via DP->HDMI
• Lenovo Mini Dock Series 3 Plus USB3.0

Software is:

• Ubuntu 20.04 x64
• 5.4.0-37 kernel
• Cinnamon GUI on Xorg

Kernel modules:

Module                  Size  Used by
ppp_mppe               16384  2
ppp_async              20480  1
nf_conntrack_pptp      24576  0
nf_conntrack          139264  1 nf_conntrack_pptp
nf_defrag_ipv6         24576  1 nf_conntrack
nf_defrag_ipv4         16384  1 nf_conntrack
binfmt_misc            24576  1
nls_iso8859_1          16384  1
dm_multipath           32768  0
scsi_dh_rdac           16384  0
scsi_dh_emc            16384  0
scsi_dh_alua           20480  0
intel_rapl_msr         20480  0
mei_hdcp               24576  0
intel_rapl_common      24576  1 intel_rapl_msr
x86_pkg_temp_thermal    20480  0
coretemp               20480  0
kvm_intel             282624  0
kvm                   663552  1 kvm_intel
intel_cstate           20480  0
intel_rapl_perf        20480  0
uvcvideo               98304  0
videobuf2_vmalloc      20480  1 uvcvideo
videobuf2_memops       20480  1 videobuf2_vmalloc
snd_usb_audio         262144  1
videobuf2_v4l2         24576  1 uvcvideo
videobuf2_common       49152  2 videobuf2_v4l2,uvcvideo
cdc_mbim               20480  0
joydev                 24576  0
snd_usbmidi_lib        36864  1 snd_usb_audio
snd_rawmidi            36864  1 snd_usbmidi_lib
snd_seq_device         16384  1 snd_rawmidi
iwldvm                237568  0
videodev              225280  3 videobuf2_v4l2,uvcvideo,videobuf2_common
cdc_ncm                36864  1 cdc_mbim
mac80211              843776  1 iwldvm
usbnet                 45056  2 cdc_mbim,cdc_ncm
wmi_bmof               16384  0
mii                    20480  1 usbnet
libarc4                16384  2 ppp_mppe,mac80211
mc                     53248  5 videodev,snd_usb_audio,videobuf2_v4l2,uvcvideo,videobuf2_common
input_leds             16384  0
cdc_acm                40960  0
cdc_wdm                24576  1 cdc_mbim
serio_raw              20480  0
iwlwifi               331776  1 iwldvm
snd_hda_codec_hdmi     61440  1
snd_hda_codec_conexant    28672  1
snd_hda_codec_generic    81920  1 snd_hda_codec_conexant
cfg80211              704512  3 iwldvm,iwlwifi,mac80211
snd_hda_intel          53248  5
snd_intel_dspcfg       24576  1 snd_hda_intel
snd_hda_codec         131072  4 snd_hda_codec_generic,snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_intel
snd_hda_core           90112  5 snd_hda_codec_generic,snd_hda_codec_conexant,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
thinkpad_acpi         110592  0
snd_hwdep              20480  2 snd_usb_audio,snd_hda_codec
mei_me                 40960  1
snd_pcm               106496  6 snd_hda_codec_hdmi,snd_hda_intel,snd_usb_audio,snd_hda_codec,snd_hda_core
mei                   106496  3 mei_hdcp,mei_me
nvram                  16384  1 thinkpad_acpi
ledtrig_audio          16384  3 snd_hda_codec_generic,snd_hda_codec_conexant,thinkpad_acpi
snd_timer              36864  1 snd_pcm
snd                    90112  24 snd_hda_codec_generic,snd_hda_codec_conexant,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_usb_audio,snd_usbmidi_lib,snd_hda_codec,snd_timer,thinkpad_acpi,snd_pcm,snd_rawmidi
soundcore              16384  1 snd
mac_hid                16384  0
sch_fq_codel           20480  3
parport_pc             40960  0
ppdev                  24576  0
lp                     20480  0
parport                53248  3 parport_pc,lp,ppdev
ip_tables              32768  0
x_tables               40960  1 ip_tables
autofs4                45056  2
btrfs                1253376  0
zstd_compress         167936  1 btrfs
dm_crypt               40960  1
raid10                 57344  0
raid456               155648  0
async_raid6_recov      24576  1 raid456
async_memcpy           20480  2 raid456,async_raid6_recov
async_pq               24576  2 raid456,async_raid6_recov
async_xor              20480  3 async_pq,raid456,async_raid6_recov
async_tx               20480  5 async_pq,async_memcpy,async_xor,raid456,async_raid6_recov
xor                    24576  2 async_xor,btrfs
raid6_pq              114688  4 async_pq,btrfs,raid456,async_raid6_recov
libcrc32c              16384  3 nf_conntrack,btrfs,raid456
raid1                  45056  0
raid0                  24576  0
multipath              20480  0
linear                 20480  0
hid_logitech_hidpp     40960  0
hid_logitech_dj        24576  0
hid_generic            16384  0
usbhid                 57344  1 hid_logitech_dj
hid                   131072  4 usbhid,hid_generic,hid_logitech_dj,hid_logitech_hidpp
crct10dif_pclmul       16384  1
crc32_pclmul           16384  0
ghash_clmulni_intel    16384  0
i915                 1986560  22
sdhci_pci              53248  0
cqhci                  28672  1 sdhci_pci
ahci                   40960  3
aesni_intel           372736  2
psmouse               155648  0
libahci                32768  1 ahci
i2c_algo_bit           16384  1 i915
i2c_i801               32768  0
lpc_ich                24576  0
sdhci                  65536  1 sdhci_pci
drm_kms_helper        184320  1 i915
syscopyarea            16384  1 drm_kms_helper
crypto_simd            16384  1 aesni_intel
sysfillrect            16384  1 drm_kms_helper
sysimgblt              16384  1 drm_kms_helper
fb_sys_fops            16384  1 drm_kms_helper
cryptd                 24576  3 crypto_simd,ghash_clmulni_intel
glue_helper            16384  1 aesni_intel
drm                   491520  8 drm_kms_helper,i915
e1000e                258048  0
wmi                    32768  1 wmi_bmof
video                  49152  2 thinkpad_acpi,i915

I am trying to get my LAN port up and running. The available interfaces on my system are :

user@user-NUC7i5BNH:~$ cat /etc/udev/rules.d/70-persistent-net.rules 
# This file was automatically generated by the /lib/udev/write_net_rules
# program, run by the persistent-net-generator.rules rules file.
#
# You can modify it, as long as you keep each rule on a single
# line, and change only the value of the NAME= key.

# USB device 0x:0x (ath9k_htc)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="e8:de:27:0f:79:8c", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"

# PCI device 0x8086:0x15d8 (e1000e)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="94:c6:91:1f:26:d4", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

As you can see wlan0 (an external USB wifi dongle) and eth0 are available. However after plugging in my LAN cable and running ifconfig gives the following :

user@user-NUC7i5BNH:~$ ifconfig -a
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:1439 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1439 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1 
          RX bytes:140959 (140.9 KB)  TX bytes:140959 (140.9 KB)

wlan0     Link encap:Ethernet  HWaddr e8:de:27:0f:79:8c  
          inet addr:192.168.100.235  Bcast:192.168.100.255  Mask:255.255.255.0
          inet6 addr: fe80::eade:27ff:fe0f:798c/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:18714 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8301 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:11072061 (11.0 MB)  TX bytes:1096635 (1.0 MB)

You can see the eth0 is not listed. I tried bring up interface:

user@user-NUC7i5BNH:~$ sudo ifup eth0
Internet Systems Consortium DHCP Client 4.2.4
Copyright 2004-2012 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Cannot find device "eth0"
Error getting hardware address for "eth0": No such device
Failed to bring up eth0.

The contents of /etc/network/interfaces

user@user-NUC7i5BNH:~$ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

Finally for completion here is output of lshw:

user@user-NUC7i5BNH:~$ sudo lshw -C network
  *-network UNCLAIMED     
       description: Network controller
       product: Intel Corporation
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:3a:00.0
       version: 78
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress cap_list
       configuration: latency=0
       resources: memory:dc100000-dc101fff
  *-network UNCLAIMED
       description: Ethernet controller
       product: Intel Corporation
       vendor: Intel Corporation
       physical id: 1f.6
       bus info: pci@0000:00:1f.6
       version: 21
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list
       configuration: latency=0
       resources: memory:dc200000-dc21ffff
  *-network
       description: Wireless interface
       physical id: 2
       bus info: usb@1:1
       logical name: wlan0
       serial: e8:de:27:0f:79:8c
       capabilities: ethernet physical wireless
       configuration: broadcast=yes driver=ath9k_htc driverversion=4.4.0-130-generic firmware=1.4 ip=192.168.100.235 link=yes multicast=yes wireless=IEEE 802.11

I am running Ubuntu 14.04.

user@user-NUC7i5BNH:~$ uname -a
Linux user-NUC7i5BNH 4.4.0-130-generic #156~14.04.1-Ubuntu SMP Thu Jun 14 13:51:47 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

Available Intel drivers are :

user@user-NUC7i5BNH:~$ ls /lib/modules/`uname -r`/kernel/drivers/net/ethernet/intel
e1000  e1000e  e100.ko  fm10k  i40e  i40evf  igb  igbvf  ixgb  ixgbe  ixgbevf

Any idea on how to fix this issue ?

In Ubuntu I usually do

nautilus .

to open the current folder in the GUI.
How would I do this in Win10 WSL? Can you even launch window apps from the WSL command line?

My school asks us to do this to connect to the wifi in the ca-certificate

Search for the line:

system-ca-certs=true

Change this line to:

system-ca-certs=false

The problem is that I cannot find this line in the ca-certificate.

I can't connect to the network. A dialogue box pops up every time asking for my user id and password for the school wifi, I enter the right credentials but it doesn't work.

P.S There is no problem in connecting to my home wifi network.

these are [the instructions given by my school][1] for connecting to the wifi

The settings are:

• Security Type: WPA2 Enterprise
• Username: ldap-Username
• Password: ldap-Password
• Authentication: PEAP
• PEAP version: automatic
• Inner authentication: MSCHAPV2
• ca-certificate: none

Note: For Ubuntu 14.04 users-

The ca-certificate settings has to be changed to false. This may be done in the following way:

Open the file in an editor of your choice: /etc/NetworkManager/system-connections/IITB-Wireless

Search for the line:

system-ca-certs=true

Change this line to:

system-ca-certs=false

THIS IS THE CA_CERTIFICATE

[connection]

id=IITB-Wireless

uuid=xxxxxxxxx

type=wifi

permissions=

secondaries=

[wifi]

mac-address=D8:5D:E2:BC:D2:05

mac-address-blacklist=

mac-address-randomization=0

mode=infrastructure

seen-bssids=

ssid=IITB-Wireless

[wifi-security]

group=

key-mgmt=wpa-eap

pairwise=

proto=

[802-1x]

altsubject-matches=

ca-cert=/usr/share/ca-certificates/mozilla/AddTrust_External_Root.crt

eap=ttls;

identity=xxxxxxx

password=xxxxxxx

phase2-altsubject-matches=

phase2-autheap=mschapv2

[ipv4]

dns-search=

method=auto

[ipv6]

addr-gen-mode=stable-privacy

dns-search=

ip6-privacy=0

method=auto

Distributor ID: Ubuntu

Description: Ubuntu 14.04.3 LTS

Release: 14.04

Codename: trusty

Google Chrome 48.0.2564.82

When launching Chrome on a fresh installation, it crashes. We get this error (when launched from the command line):

$ google-chrome [7251:7251:0123/174646:ERROR:logging.h(808)] Failed to call method: org.freedesktop.DBus.ObjectManager.GetManagedObjects: object_path= /: org.freedesktop.DBus.Error.UnknownMethod: Method "GetManagedObjects" with signature "" on interface "org.freedesktop.DBus.ObjectManager" doesn't exist [7251:7251:0123/174647:ERROR:logging.h(808)] Failed to call method: org.freedesktop.DBus.ObjectManager.GetManagedObjects: object_path= /: org.freedesktop.DBus.Error.UnknownMethod: Method "GetManagedObjects" with signature "" on interface "org.freedesktop.DBus.ObjectManager" doesn't exist Illegal instruction (core dumped)

Does anyone have any ideas on how to troubleshoot this? Any further data I can provide that would help?

libkmod: Error ../libkmod/libkmod-config.c:686 kmod_config_parse: /etc/modprobe./blacklist-nouveau.conf line 5 ignoring bad line starting with 'alia'

I started getting this recently then today it fails to boot into Ubuntu just giving me a blank desktop background. I think it has to do with this manual way I went about installing the nvidia drivers? If it is how is the normal process for installing the drivers because this process is awkward to say the least!

How do I install the Nvidia driver for a GeForce GT 630

I'm new to Linux. I've tried a lot of different ways, but all effort failed - usually because they pertain to Ubuntu desktop, rather than server, and because they rely on packages being present which aren't, or a graphical interface.

I'm running 12.04 - fresh install in a VM

I've tried editing /etc/default/grub followed by update-grub and reboot - this either achieves nothing, or results in a failure to reboot.

I try to run vbeinfo and it says unknown command.

How can I increase the size of the console window?

I've tried using xrandr which required a package install of x11-server-utils, but after installation all I got when I typed xrandr was Can't open display

Some people have said about "grub menu"... what is it? If I type grub, it tells me to install a package. I do so, and type grub and I get the grub console. Is this helpful?

Ctrl+Alt+T shortcut runs the gnome-terminal by default. I have installed byobu, and I want this shortcut to open the latest used byobu session. When pressed multiple times, I should still have just one window.

I tried to map this shortcut to gnome-terminal, but this open multiple windows, with the same session.

The behavior I want is the same as clicking on the terminal icon in the dash. After the above map I have a behavior of "New terminal" which can be accessed by the right click on this icon. It's probably about some gnome-terminal parameter, but I don't see any related one.

I has a dual boot system with MacOSX 10.8.2 and Microsoft Windows 7 Home Premium x64. I would like to install Ubuntu alongside the two existing operating systems for cross platform development purposes. My System specs are listed below.

• iMac 21.5-inch (mid 2011)
• Intel Core i7 @2.80GHz
• AMD Radeon HD 6770M
• Facetime HD Internet Camera
• Thunderbolt port
• Wireless Airport adapter card
• Apple 8x Superdrive
• Apple Magic Mouse and wired keyboard with numeric keypad

Will rEFIt install properly on my machine too?

Thanks you very much for the help.

I was new in Ubuntu OS and I was just trying to use wubi windows installer to get a Ubuntu first for hands-on.

I followed exactly the same as the instructions and after reboot win7, there is no Ubuntu selection in windows boot manager, with only Windows 7 showing there evilly -.-

What I've found out was that the grub folder inside Ubuntu folder ( in my C:\ drive) was empty, either inside the ubuntu\disks\grub or ubuntu\install\grub. I thought this might be the reason why I could not load ubuntu during startup.

Cause I've also looked into the EasyBCD settings, and ubuntu entry with Bootloader Path: \ubuntu\winboot\wubildr.mbr was lying there peacefully, looking perfectly fine. However it was not in boot loader actually.

Is there a way to restore the grub folder with grub2, or is there any way to fix this problem so that I can find the "Ubuntu" selection at windows startup?

Very appreciate your help :)

Henry

Just created a new virtual Ubuntu server and I'm in the process of hardening it for production use. I currently have a root account. I want to do the following:

• Create a new user (let's call them jim for the rest of this). I want them to have a /home/ directory.
• Give jim SSH access.
• Allow jim to su to root but not perform sudo operations.
• Turn off root SSH access.
• Move SSHd off to a non-standard port to help stop brute-attacks.

My problem lies with the first two items. I've already found useradd but for some reason, I can't log in as a user created with it over SSH. Do I need to beat SSHd to allow this?