A recent update seems to have broken kernel modules. The kernel was updated from 6.17.0-40 to 7.0.0-28 but then the modules fail to build and the machine remains on the older kernel. I noticed this yesterday and the problem remains today.

This is what I see when doing an apt upgrade:

Setting up linux-image-7.0.0-28-generic (7.0.0-28.28~24.04.1) ...
Setting up imagemagick-6-common (8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm11) ...
Setting up wget (1.21.4-1ubuntu4.4) ...
Setting up libsqlite3-0:amd64 (3.45.1-1ubuntu2.7) ...
Setting up libmagickcore-6.q16-7t64:amd64 (8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm11) ...
Setting up linux-headers-7.0.0-28-generic (7.0.0-28.28~24.04.1) ...
/etc/kernel/header_postinst.d/dkms:
 * dkms: running auto installation service for kernel 7.0.0-28-generic
Sign command: /usr/bin/kmodsign
Signing key: /var/lib/shim-signed/mok/MOK.priv
Public certificate (MOK): /var/lib/shim-signed/mok/MOK.der

Building module:
Cleaning build area...
KERNELDIR=/lib/modules/7.0.0-28-generic/build make modules....(bad exit status: 2)
ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/lttng-modules-dkms.0.crash'
Error! Bad return status for module build on kernel: 7.0.0-28-generic (x86_64)
Consult /var/lib/dkms/lttng-modules/2.14.0/build/make.log for more information.
dkms autoinstall on 7.0.0-28-generic/x86_64 succeeded for usbio-drivers
dkms autoinstall on 7.0.0-28-generic/x86_64 failed for lttng-modules(10)
Error! One or more modules failed to install during autoinstall.
Refer to previous errors for more information.
 * dkms: autoinstall for kernel 7.0.0-28-generic
   ...fail!
run-parts: /etc/kernel/header_postinst.d/dkms exited with return code 11
dpkg: error processing package linux-headers-7.0.0-28-generic (--configure):
 installed linux-headers-7.0.0-28-generic package post-installation script subprocess returned error exit status 11
Setting up libmagickwand-6.q16-7t64:amd64 (8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm11) ...
Setting up libmagick++-6.q16-9t64:amd64 (8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm11) ...
Setting up imagemagick-6.q16 (8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm11) ...
dpkg: dependency problems prevent configuration of linux-headers-generic-hwe-24.04:
 linux-headers-generic-hwe-24.04 depends on linux-headers-7.0.0-28-generic; however:
  Package linux-headers-7.0.0-28-generic is not configured yet.

dpkg: error processing package linux-headers-generic-hwe-24.04 (--configure):
 dependency problems - leaving unconfigured
Setting up libmagickcore-6.q16-7-extra:amd64 (8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm11) ...
No apport report written because the error message indicates it's a follow-up error from a previous failure.
                                                                                                            Setting up libde265-0:amd64 (1.0.15-1ubuntu0.1) ...
Setting up libxfont2:amd64 (1:2.0.6-1+deb13u1build0.24.04.2) ...
Setting up libimage-magick-q16-perl (8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm11) ...
dpkg: dependency problems prevent configuration of linux-generic-hwe-24.04:
 linux-generic-hwe-24.04 depends on linux-headers-generic-hwe-24.04 (= 7.0.0-28.28~24.04.1); however:
  Package linux-headers-generic-hwe-24.04 is not configured yet.

dpkg: error processing package linux-generic-hwe-24.04 (--configure):
 dependency problems - leaving unconfigured
Setting up imagemagick (8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm11) ...
No apport report written because the error message indicates it's a follow-up error from a previous failure.
                                                                                                            Setting up libimage-magick-perl (8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm11) ...
Processing triggers for hicolor-icon-theme (0.17-2) ...
Processing triggers for libc-bin (2.39-0ubuntu8.7) ...
Processing triggers for man-db (2.12.0-4build2) ...
Processing triggers for install-info (7.1-3build2) ...
Processing triggers for desktop-file-utils (0.27-2build1) ...
Processing triggers for linux-image-7.0.0-28-generic (7.0.0-28.28~24.04.1) ...
/etc/kernel/postinst.d/dkms:
 * dkms: running auto installation service for kernel 7.0.0-28-generic
Sign command: /usr/bin/kmodsign
Signing key: /var/lib/shim-signed/mok/MOK.priv
Public certificate (MOK): /var/lib/shim-signed/mok/MOK.der

Building module:
Cleaning build area...
KERNELDIR=/lib/modules/7.0.0-28-generic/build make modules....(bad exit status: 2)
ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/lttng-modules-dkms.0.crash'
Error! Bad return status for module build on kernel: 7.0.0-28-generic (x86_64)
Consult /var/lib/dkms/lttng-modules/2.14.0/build/make.log for more information.
dkms autoinstall on 7.0.0-28-generic/x86_64 succeeded for usbio-drivers
dkms autoinstall on 7.0.0-28-generic/x86_64 failed for lttng-modules(10)
Error! One or more modules failed to install during autoinstall.
Refer to previous errors for more information.
 * dkms: autoinstall for kernel 7.0.0-28-generic
   ...fail!
run-parts: /etc/kernel/postinst.d/dkms exited with return code 11
dpkg: error processing package linux-image-7.0.0-28-generic (--configure):
 installed linux-image-7.0.0-28-generic package post-installation script subprocess returned error exit status 11
No apport report written because MaxReports has already been reached
                                                                    Errors were encountered while processing:
 linux-headers-7.0.0-28-generic
 linux-headers-generic-hwe-24.04
 linux-generic-hwe-24.04
 linux-image-7.0.0-28-generic
E: Sub-process /usr/bin/dpkg returned an error code (1)
Updating skipped packages...
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
  linux-headers-6.17.0-35-generic linux-hwe-6.17-headers-6.17.0-35 linux-hwe-6.17-tools-6.17.0-35 linux-image-6.17.0-35-generic linux-modules-6.17.0-35-generic
  linux-modules-extra-6.17.0-35-generic linux-modules-ipu6-6.17.0-35-generic linux-modules-usbio-6.17.0-35-generic linux-tools-6.17.0-35-generic
Use 'sudo apt autoremove' to remove them.
The following packages will be upgraded:
  snapd
1 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.
4 not fully installed or removed.
Need to get 36.4 MB of archives.
After this operation, 2,744 kB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 snapd amd64 2.76+ubuntu24.04 [36.4 MB]
Fetched 36.4 MB in 5s (7,806 kB/s)
(Reading database ... 435430 files and directories currently installed.)
Preparing to unpack .../snapd_2.76+ubuntu24.04_amd64.deb ...
Unpacking snapd (2.76+ubuntu24.04) over (2.75.2+ubuntu24.04) ...
Setting up snapd (2.76+ubuntu24.04) ...
Installing new version of config file /etc/apparmor.d/usr.lib.snapd.snap-confine.real ...
snapd.failure.service is a disabled or a static unit not running, not starting it.
snapd.gpio-chardev-setup.target is a disabled or a static unit not running, not starting it.
snapd.snap-repair.service is a disabled or a static unit not running, not starting it.
Setting up linux-image-7.0.0-28-generic (7.0.0-28.28~24.04.1) ...
Setting up linux-headers-7.0.0-28-generic (7.0.0-28.28~24.04.1) ...
/etc/kernel/header_postinst.d/dkms:
 * dkms: running auto installation service for kernel 7.0.0-28-generic
Sign command: /usr/bin/kmodsign
Signing key: /var/lib/shim-signed/mok/MOK.priv
Public certificate (MOK): /var/lib/shim-signed/mok/MOK.der

Building module:
Cleaning build area...
KERNELDIR=/lib/modules/7.0.0-28-generic/build make modules....(bad exit status: 2)
ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/lttng-modules-dkms.0.crash'
Error! Bad return status for module build on kernel: 7.0.0-28-generic (x86_64)
Consult /var/lib/dkms/lttng-modules/2.14.0/build/make.log for more information.
dkms autoinstall on 7.0.0-28-generic/x86_64 succeeded for usbio-drivers
dkms autoinstall on 7.0.0-28-generic/x86_64 failed for lttng-modules(10)
Error! One or more modules failed to install during autoinstall.
Refer to previous errors for more information.
 * dkms: autoinstall for kernel 7.0.0-28-generic
   ...fail!
run-parts: /etc/kernel/header_postinst.d/dkms exited with return code 11
dpkg: error processing package linux-headers-7.0.0-28-generic (--configure):
 installed linux-headers-7.0.0-28-generic package post-installation script subprocess returned error exit status 11
dpkg: dependency problems prevent configuration of linux-headers-generic-hwe-24.04:
 linux-headers-generic-hwe-24.04 depends on linux-headers-7.0.0-28-generic; however:
  Package linux-headers-7.0.0-28-generic is not configured yet.

dpkg: error processing package linux-headers-generic-hwe-24.04 (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of linux-generic-hwe-24.04:
 linux-generic-hwe-24.04 depends on linux-headers-generic-hwe-24.04 (= 7.0.0-28.28~24.04.1); however:
  Package linux-headers-generic-hwe-24.04 is not configured yet.

dpkg: error processing package linux-generic-hwe-24.04 (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates it's a follow-up error from a previous failure.
                                                                                                            No apport report written because the error message indicates it's a follow-up error from a previous failure.
                           Processing triggers for desktop-file-utils (0.27-2build1) ...
Processing triggers for man-db (2.12.0-4build2) ...
Processing triggers for dbus (1.14.10-4ubuntu4.1) ...
Processing triggers for linux-image-7.0.0-28-generic (7.0.0-28.28~24.04.1) ...
/etc/kernel/postinst.d/dkms:
 * dkms: running auto installation service for kernel 7.0.0-28-generic
Sign command: /usr/bin/kmodsign
Signing key: /var/lib/shim-signed/mok/MOK.priv
Public certificate (MOK): /var/lib/shim-signed/mok/MOK.der

Building module:
Cleaning build area...
KERNELDIR=/lib/modules/7.0.0-28-generic/build make modules....(bad exit status: 2)
ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/lttng-modules-dkms.0.crash'
Error! Bad return status for module build on kernel: 7.0.0-28-generic (x86_64)
Consult /var/lib/dkms/lttng-modules/2.14.0/build/make.log for more information.
dkms autoinstall on 7.0.0-28-generic/x86_64 succeeded for usbio-drivers
dkms autoinstall on 7.0.0-28-generic/x86_64 failed for lttng-modules(10)
Error! One or more modules failed to install during autoinstall.
Refer to previous errors for more information.
 * dkms: autoinstall for kernel 7.0.0-28-generic
   ...fail!
run-parts: /etc/kernel/postinst.d/dkms exited with return code 11
dpkg: error processing package linux-image-7.0.0-28-generic (--configure):
 installed linux-image-7.0.0-28-generic package post-installation script subprocess returned error exit status 11
No apport report written because MaxReports has already been reached
                                                                    Errors were encountered while processing:
 linux-headers-7.0.0-28-generic
 linux-headers-generic-hwe-24.04
 linux-generic-hwe-24.04
 linux-image-7.0.0-28-generic
E: Sub-process /usr/bin/dpkg returned an error code (1)

How do I fix this? Thanks!

I have the new Terminal by Ptyxis and the old gnome-terminal both in my Ubuntu 26.04. When I push Ctrl+Alt+T the old gnome-terminal appears. How to switch to modern Terminal by Ptyxis? I can call Terminal by Ptyxis manually, but I want to use Ctrl+Alt+T, and I don't want to remove gnome-terminal.

I have tried this without success:

$ sudo update-alternatives --config x-terminal-emulator
[sudo: authenticate] Password:  
There are 2 choices for the alternative x-terminal-emulator (providing /usr/bin/x-terminal-emulator).

  Selection    Path                             Priority   Status
------------------------------------------------------------
* 0            /usr/bin/ptyxis                   40        auto mode
  1            /usr/bin/gnome-terminal.wrapper   40        manual mode
  2            /usr/bin/ptyxis                   40        manual mode

Press <enter> to keep the current choice[*], or type selection number:

Then pressed enter key. But Ctrl+Alt+T still calls old gnome-terminal.

I run auto install drivers command and rebooted system. After that it stuck to GNU GRUB scree. Ubuntu 24 I am using.

UUID=xyz / ext4 defaults 0 1 tmpfs / tmpfs rw=novfs,mode=1000

Thus, my swap (up) MIGHT NOT wake from my session oom (out-of-memory) WITH free ram/SYSCTL-Swap.

Depending 3d apps (game) noMATTER ram usage, swap GETs in place, BUT no while THAT /et/fstab file. EXCEPTION no ram avail.

Space repartition:

^{Click the image to enlarge it.}

Inability to scroll to the left with the slider:

I had lots of unused space on my (almost) unused Windows partition, so I wanted to switch it to Ubuntu. When I open gparted, here's what the diagram looks like:

[EFI system partition] -> [Microsoft boot partition] -> [Basic data partition (Microsoft's storage)] -> free space -> [Ubuntu partition].

The problem is that given that Ubuntu is at the right of the space I want to add to it, I can't fuse to the left nor move with gparted. I don't know what to do to be able to fuse the two.

At this point I'm almost ready to uninstall Ubuntu and create a new partition with more space. I've also seen that you can create a live USB key. If that's less far-fetched than all the black magic required to fuse a partition to the left, I'll take it.

After a few updates last week my pc wont shutdown. just stays on a black screen but hardware is on. I can dual boot to win10 and it shutdown or restarts just fine. Also, my wife has same exact hardware and software and she doesn't have same problem. Her PC reboots flawlessly.

I was using my Ubuntu normally, and then after a reboot I can't unlock my LUKS container. I've already tried dozens of passwords whether I forgot or have gone crazy, but nothing worked. On cryptsetup it appears to be healthy and normal. Unfortunately I don't have backups.

How do I connect my Ubuntu computers using a wifi router?

I am a very recent convert to Ubuntu, as in just this weekend. I put together a new computer, and decided to make the jump from Windows 10 to Ubuntu. I've been trying to search for answers as I can and make it work, but I'm having some trouble with this one.

I've got a fresh install of Ubuntu 26.04. As a practice with previous computers, I put the OS on a small dedicated SSD and use a larger SSD for apps and general storage.

I've tried following a few guides on how to mount an additional drive and have the OS automatically mount the drive on startup, but I've been unsuccessful so far.

I have successfully formatted and partitioned the 2nd drive as vfat using GParted, and added a line to /etc/fstab for the new drive as instructed by an instructional here. The issue could be that the instructional is 14 years old, and the method has changed since then. Any help is appreciated.

After upgrading to 26.04 LTS, i have faced issues when switching workspaces using a touchpad gesture. Desktop folders are hidden and drag selection also disappears

I am running Ubuntu 24.04 LTS (Noble Numbat) and keeping getting a GPG signature verification error whenever I run sudo apt update.Here is the exact terminal output log:

Hit:1 http://dl.google.com/linux/earth/deb stable InRelease
Hit:2 https://dl.google.com/linux/chrome-stable/deb stable InRelease
Err:1 http://dl.google.com/linux/earth/deb stable InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 32EE5355A6BC6E42
Hit:3 http://security.ubuntu.com/ubuntu noble-security InRelease
Hit:4 http://us.archive.ubuntu.com/ubuntu noble InRelease
Hit:5 http://us.archive.ubuntu.com/ubuntu noble-updates InRelease
Hit:6 http://us.archive.ubuntu.com/ubuntu noble-backports InRelease
Reading package lists...
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://dl.google.com/linux/earth/deb stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 32EE5355A6BC6E42
W: Failed to fetch http://dl.google.com/linux/earth/deb/dists/stable/InRelease  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 32EE5355A6BC6E42
W: Some index files failed to download. They have been ignored, or old ones used instead.`

The contents of my /etc/apt/sources.list.d/google-earth.list file are:

deb [arch=amd64] http://dl.google.com/linux/earth/deb/ stable main

What I have tried so far:

1 .Manually downloading and piping the key with wget and gpg --dearmor into /etc/apt/trusted.gpg.d/ and /etc/apt/keyrings/. wget repeatedly fails with no valid openPGP data found or throws a parsing mismatch.

2 . Fetching via keyserver directly using gpg --keyserver keyserver.ubuntu.com --recv-keys 32EE5355A6BC6E42. This continuously results in a gpg: could not parse keyserver URL error.

3.Running apt-key adv --keyserver hkp://://ubuntu.com --recv-keys 32EE5355A6BC6E42, but the terminal throws a no such file or directory or layout execution block.Since the repo file is automatically re-configured by Google's background cron script, adding a local signed-by tag directly to the .list file gets overwritten.

How can I get Ubuntu 24.04 to properly ingest and retain this Google Earth public key globally?

Recently, on this Dell Latitude 7380, running Ubuntu 24.04.4 LTS with Wayland, the kernel updated from v. 6.17.0-40-generic to 7.0.0-28-generic. After rebooting the display became extremely dark, starting immediately after the selection of OS was made in grub. It was barely readable in a dimly lit room, and it also appeared to flicker slightly.

Rebooting and selecting kernel 6.17.0-40 from grub worked normally, with fully controllable brightness. Retesting both kernels gave consistent results. For now, I've changed the grub selection order so that 6.17.0-40 is the first, i.e., default entry. That kernel and its header also have been set on hold. However, I'd like to know what causes the issue, and if there is a workaround, or newer kernel in the pipeline that could be tested to see if the issue has been resolved.

The results of uname -a are as follows for the new and old kernels, respectively:

Linux <PC_NAME> 7.0.0-28-generic #28~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Wed Jul  1 15:50:57 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

Linux <PC_NAME> 6.17.0-40-generic #40~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Tue Jun 23 16:48:12 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

Here are relevant parts of a system report:

Hardware Model:      Dell Inc. Latitude 7380
Memory:              16.0 GiB
Processor:           Intel® Core™ i7-6600U × 4
Graphics:            Intel® HD Graphics 520 (SKL GT2)
Disk Capacity:       512.1 GB
Firmware Version:    1.38.0
OS Name:             Ubuntu 24.04.4 LTS
GNOME Version:       46
Windowing System:    Wayland

Values /sys/class/backlight/intel_backlight/:
           Kernel: 6.17      7.0              
max_brightness:    7500     1023
actual_brightness: 2136     1023
brightness:        2136     1023
bi_power:             0        0
scale:             unknown  unknown
type:              raw      raw
uevent:            [null]  [null]

Has kernel 7.0.0-28-generic dropped support for hardware in this older Dell?

Is there a conflict with Wayland windowing system?

Is there a driver needed?

Any help would be appreciated.

This issue is about the Linux kernel update. Nothing in BIOS has changed.

Ubuntu 24.04 up to date

Gthumb 3.12.10

All of gThumb's functions work properly except for printing.

It was printing a while back. I don't know how long ago, but it was not long, a few weeks maybe. I updated the system as usual, 1 or 2 times. Now Gthumb crashes when I try to print a jpg. It never has before.

I uninstalled it, reinstalled it and did the same with the printer, a Brother MFC-2710DW. The printer works as expected from other apps, including GNome Image Viewer 45.3.

I am getting the apparently common problem of a boot partition with 0 space left. I have gone through the best links that I found so far, but with no luck resolving it (partly because I'm a noob).

How do I free up more space in /boot?

The autoremove command does not work because it needs to create files, but there is no space left to do so.

The sudo apt-get purge command also fails due to an attempt to create files again was met with no space left.

The boot partition is 2GB and attempting to expand partition doesn't work (using Disk Utility) because there is no non-filesystem free space left on the 2TB drive.

EDIT: Below is contents of the /boot folder, then the result of df -h. I am on "Ubuntu 26.04 LTS - Framework desktop". Is it safe to manually delete files listed as 7.0.0-15 (old kernels?) via sudo rm instead of purge which does not work (requires space)

Results of ls -1:

total 205328
-rw------- 1 root root 11001551 Apr 22 10:02 System.map-7.0.0-15-generic
-rw------- 1 root root 11001587 May 25 08:41 System.map-7.0.0-22-generic
-rw------- 1 root root 11010417 Jun 18 12:54 System.map-7.0.0-27-generic
-rw-r--r-- 1 root root   308479 Apr 22 10:02 config-7.0.0-15-generic
-rw-r--r-- 1 root root   308479 May 25 08:41 config-7.0.0-22-generic
-rw-r--r-- 1 root root   308501 Jun 18 12:54 config-7.0.0-27-generic
drwxr-xr-x 3 root root     4096 Dec 31  1969 efi
drwxr-xr-x 5 root root     4096 Jul 18 09:48 grub
lrwxrwxrwx 1 root root       27 Jul 18 10:49 initrd.img -> initrd.img-7.0.0-27-generic
-rw------- 1 root root 41375235 Jul 18 09:47 initrd.img-7.0.0-15-generic
-rw------- 1 root root 41343867 Jun 13 08:09 initrd.img-7.0.0-22-generic
-rw------- 1 root root 41393731 Jun 26 06:27 initrd.img-7.0.0-27-generic
lrwxrwxrwx 1 root root       31 Jul 18 10:49 initrd.img.old -> initrd.img-7.0.0-22-generic
drwx------ 2 root root    16384 Apr 24 18:55 lost+found
-rw-r--r-- 1 root root   156672 Nov 29  2025 mt86+ia32
-rw-r--r-- 1 root root   161280 Nov 29  2025 mt86+x64
drwxr-xr-x 9 root root     4096 Jul  6 07:52 timeshift
lrwxrwxrwx 1 root root       24 Jul 18 10:49 vmlinuz -> vmlinuz-7.0.0-27-generic
-rw------- 1 root root 17273344 Apr 22 10:02 vmlinuz-7.0.0-15-generic
-rw------- 1 root root 17275272 May 25 08:42 vmlinuz-7.0.0-22-generic
-rw------- 1 root root 17283464 Jun 18 13:19 vmlinuz-7.0.0-27-generic
lrwxrwxrwx 1 root root       28 Jul 18 10:49 vmlinuz.old -> vmlinuz-7.0.0-22-generic
eric-johnson@FrameworkDesktopEJ:/boot$

Results of df -h:

none                               1.0M     0 1.0M   0% /run/credentials/systemd-cryptsetup@dm_crypt\x2d0.service
/dev/mapper/ubuntu--vg-ubuntu--lv  1.8T  245G 1.5T  15% /
tmpfs                               16G     0  16G   0% /dev/shm
efivarfs                           148K  138K 5.9K  96% /sys/firmware/efi/efivars
none                               1.0M     0 1.0M   0% /run/credentials/systemd-journald.service
none                               1.0M     0 1.0M   0% /run/credentials/systemd-resolved.service
/dev/nvme1n1p2                     2.0G  1.9G    0 100% /boot
tmpfs                               16G  1.5M  16G   1% /tmp
/dev/nvme1n1p1                     1.1G  6.4M 1.1G   1% /boot/efi
tmpfs                              3.1G  5.5M 3.1G   1% /run/user/1000
/dev/sda1                          233G  1.5M 233G   1% /run/media/eric-johnson/250GB
/dev/nvme0n1                       1.8T   62G 1.7T   4% /run/media/eric-johnson/partitionDrive2

After a routine fwupd firmware update my laptop's built-in screen became very dim, even at "100%" brightness. An external monitor on the same machine looks completely normal.

• Laptop: Dell Latitude 5430, Intel Iris Xe (Alder Lake, i915), internal eDP panel (AU Optronics).

• OS: Ubuntu 24.04, GNOME.

• Trigger: fwupd auto-flashed the Dell system BIOS from 1.36.0 to 1.39.1 (check with fwupdmgr get-history). The screen was fine before that.

What I already ruled out (none of these help):

• Not a kernel regression — dim on every kernel I tried; the panel is only bright in recovery mode / with nomodeset (i.e. when i915 is not driving it).

• Not gamma/ICC — xrandr Brightness 1.0, Gamma 1.0, no VCGT in the ICC profile.

• Not a software brightness slider — /sys/class/backlight/intel_backlight reports brightness == actual_brightness == max_brightness (1023), yet the panel is dim.

• Brightness keys only make it dimmer, never brighter.

• Downgrading the BIOS is blocked: LVFS only offers 1.39.1, so fwupdmgr / GNOME Firmware cannot roll back.

How do I get the panel bright again without a BIOS downgrade?

Chromebook in question: HP Chromebook x2 - touchscreen tablet with detachable keyboard.

Following the guides on mrchromebox.tech, I was able to get Lubuntu installed. Everything is working great except the trackpad. The cursor "warps" to the corresponding location on the screen to wherever I touch the touchpad (if I touch the top left of the touchpad the cursor instantly moves to the top left of the screen) and it constantly clicks and drags as I move my finger around the touchpad.

Touchpad in question:

I haven't used Linux in a decade or so so you'll have to excuse my ignorance. I used AI to give some bash commands for the below info. Let me know if I can provide more info.

user@chris-soraka:~$ cat /proc/bus/input/devices
I: Bus=0019 Vendor=0000 Product=0005 Version=0000
N: Name="Lid Switch"
P: Phys=PNP0C0D/button/input0
S: Sysfs=/devices/pci0000:00/0000:00:1f.0/PNP0C09:00/PNP0C0D:00/input/input0
U: Uniq=
H: Handlers=event0 
B: PROP=0
B: EV=21
B: SW=1

I: Bus=0019 Vendor=0000 Product=0001 Version=0000
N: Name="Power Button"
P: Phys=LNXPWRBN/button/input0
S: Sysfs=/devices/platform/LNXPWRBN:00/input/input1
U: Uniq=
H: Handlers=kbd event1 
B: PROP=0
B: EV=3
B: KEY=8000 10000000000000 0

I: Bus=0019 Vendor=0000 Product=0006 Version=0000
N: Name="Video Bus"
P: Phys=LNXVIDEO/video/input0
S: Sysfs=/devices/pci0000:00/acpi.video_bus.0/input/input21
U: Uniq=
H: Handlers=kbd event10 
B: PROP=0
B: EV=3
B: KEY=3e000b00000000 0 0 0

I: Bus=0019 Vendor=0000 Product=0000 Version=0000
N: Name="Intel Virtual Buttons"
P: Phys=
S: Sysfs=/devices/pci0000:00/0000:00:1f.0/PNP0C09:00/INT33D6:00/input/input22
U: Uniq=
H: Handlers=kbd event11 
B: PROP=0
B: EV=13
B: KEY=2000000000000 0 0 0 0 1000000000000 0 201c000000000000 0
B: MSC=10

I: Bus=0019 Vendor=0000 Product=0000 Version=0000
N: Name="Intel Virtual Switches"
P: Phys=
S: Sysfs=/devices/pci0000:00/0000:00:1f.0/PNP0C09:00/INT33D6:00/input/input23
U: Uniq=
H: Handlers=event12 
B: PROP=0
B: EV=21
B: SW=2

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="AVS HDMI HDMI/DP"
P: Phys=ALSA
S: Sysfs=/devices/platform/avs_hdaudio.22.auto/sound/card3/input24
U: Uniq=
H: Handlers=event13 
B: PROP=0
B: EV=21
B: SW=140

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="AVS HDMI HDMI/DP,pcm=1"
P: Phys=ALSA
S: Sysfs=/devices/platform/avs_hdaudio.22.auto/sound/card3/input25
U: Uniq=
H: Handlers=event14 
B: PROP=0
B: EV=21
B: SW=140

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="AVS HDMI HDMI/DP,pcm=2"
P: Phys=ALSA
S: Sysfs=/devices/platform/avs_hdaudio.22.auto/sound/card3/input26
U: Uniq=
H: Handlers=event15 
B: PROP=0
B: EV=21
B: SW=140

I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="AVS I2S ALC5663 Headset Jack"
P: Phys=ALSA
S: Sysfs=/devices/platform/avs_rt5663.21.auto/sound/card4/input27
U: Uniq=
H: Handlers=kbd event16 
B: PROP=0
B: EV=23
B: KEY=40 0 0 0 0 0 0 1000000000 c000000000000 0
B: SW=14

I: Bus=0018 Vendor=2d1f Product=4877 Version=0100
N: Name="WCOMCOHO:00 2D1F:4877"
P: Phys=i2c-WCOMCOHO:00
S: Sysfs=/devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-0/i2c-WCOMCOHO:00/0018:2D1F:4877.0006/input/input35
U: Uniq=
H: Handlers=mouse2 event5 
B: PROP=2
B: EV=1b
B: KEY=400 0 0 0 0 0
B: ABS=2f3800000000003
B: MSC=20

I: Bus=0018 Vendor=2d1f Product=4877 Version=0100
N: Name="WCOMCOHO:00 2D1F:4877 UNKNOWN"
P: Phys=i2c-WCOMCOHO:00
S: Sysfs=/devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-0/i2c-WCOMCOHO:00/0018:2D1F:4877.0006/input/input36
U: Uniq=
H: Handlers=event6 
B: PROP=0
B: EV=9
B: ABS=10000000000

I: Bus=0018 Vendor=2d1f Product=4877 Version=0100
N: Name="WCOMCOHO:00 2D1F:4877 Stylus"
P: Phys=i2c-WCOMCOHO:00
S: Sysfs=/devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-0/i2c-WCOMCOHO:00/0018:2D1F:4877.0006/input/input37
U: Uniq=
H: Handlers=mouse3 event7 
B: PROP=2
B: EV=1b
B: KEY=1c03 0 0 0 0 0
B: ABS=1000003
B: MSC=11

I: Bus=0018 Vendor=2d1f Product=4877 Version=0100
N: Name="WCOMCOHO:00 2D1F:4877 UNKNOWN"
P: Phys=i2c-WCOMCOHO:00
S: Sysfs=/devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-0/i2c-WCOMCOHO:00/0018:2D1F:4877.0006/input/input38
U: Uniq=
H: Handlers=mouse4 event8 
B: PROP=2
B: EV=1b
B: KEY=400 1 0 0 0 0
B: ABS=1000003
B: MSC=11

I: Bus=0018 Vendor=2d1f Product=4877 Version=0100
N: Name="WCOMCOHO:00 2D1F:4877 Mouse"
P: Phys=i2c-WCOMCOHO:00
S: Sysfs=/devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-0/i2c-WCOMCOHO:00/0018:2D1F:4877.0006/input/input39
U: Uniq=
H: Handlers=mouse5 event9 js0 
B: PROP=0
B: EV=1b
B: KEY=30000 0 0 0 0
B: ABS=3
B: MSC=10

I: Bus=0003 Vendor=18d1 Product=502b Version=0100
N: Name="Google Inc. Hammer"
P: Phys=usb-0000:00:14.0-2/input0
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.0/0003:18D1:502B.0007/input/input40
U: Uniq=3c002b000a57414739313320
H: Handlers=sysrq kbd event2 
B: PROP=0
B: EV=100013
B: KEY=1000000000007 ff800000000007ff febeffdfffefffff fffffffffffffffe
B: MSC=10

I: Bus=0003 Vendor=18d1 Product=502b Version=0100
N: Name="Google Inc. Hammer"
P: Phys=usb-0000:00:14.0-2/input2
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.2/0003:18D1:502B.0008/input/input41
U: Uniq=3c002b000a57414739313320
H: Handlers=mouse1 event4 
B: PROP=7
B: EV=1b
B: KEY=e520 10000 0 0 0 0
B: ABS=673800001000003
B: MSC=20

I: Bus=0003 Vendor=046d Product=4080 Version=0111
N: Name="Logitech M350"
P: Phys=usb-0000:00:14.0-1/input1:1
S: Sysfs=/devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.1/0003:046D:C52F.000A/0003:046D:4080.000B/input/input42
U: Uniq=64-c1-67-36
H: Handlers=kbd mouse0 event3 
B: PROP=0
B: EV=1f
B: KEY=3f00733fff 0 0 483ffff17aff32d bfd4444600000000 ffff0001 130ff38b17d000 677bfad9415fed 19ed68000004400 10000002
B: REL=1943
B: ABS=100000000
B: MSC=10



user@chris-soraka:~$ # Kernel driver currently bound, and which .ko file it loaded from
modinfo hid_multitouch | grep filename
lsmod | grep hid_multitouch
filename:       /lib/modules/7.0.0-27-generic/kernel/drivers/hid/hid-multitouch.ko.zst
hid_multitouch         36864  0
hid                   278528  9 hid_google_hammer,i2c_hid,usbhid,hid_multitouch,hid_vivaldi_common,snd_soc_sdca,hid_generic,hid_logitech_dj,hid_logitech_hidpp



user@chris-soraka:~$ # udev's classification (touchpad vs touchscreen vs mouse)
udevadm info /dev/input/event4 | grep ID_INPUT
E: ID_INPUT=1
E: ID_INPUT_MOUSE=1
E: ID_INPUT_TOUCHSCREEN=1
E: ID_INPUT_WIDTH_MM=100
E: ID_INPUT_HEIGHT_MM=57



user@chris-soraka:~$ # libinput's view of the device's capabilities
sudo libinput list-devices | grep -A18 "Google Inc. Hammer" | grep -A18 "Capabilities.*pointer"
Capabilities:            pointer touch 
Tap-to-click:            n/a
Tap-and-drag:            n/a
Tap button map:          n/a
Tap drag lock:           n/a
Left-handed:             disabled
Nat.scrolling:           disabled
Middle emulation:        n/a
Calibration:             identity matrix
Scroll methods:          none
Scroll button:           n/a
Scroll button lock:      n/a
Click methods:           none

System info:

• Lubuntu 26.04 LTS
• 7.0.0-27-generic kernel

I have turned my monitor physically in portrait position. I adjusted Settings -> Displays so that the layout for my desktop is okay, but the login screen is still landscape.

I read that this problem could be fixed with following instructions:

sudo cp ~/.config/monitors.xml /var/lib/gdm3/.config/
sudo chown gdm:gdm /var/lib/gdm3/.config/monitors.xml
sudo systemctl restart gdm3

But to no avail, it just does not work. No matter if I reboot or even completely turn off and back on computer. The login screen remains in landscape position.

According to mutter documentation monitors.xml is read from /etc/xdg. Copied file there but it did not work either. This is clearly an issue that cannot be fixed with blind workarounds.

I edited /etc/xdg/monitors.xml so that there were different settings than in ~/.config/monitors.xml. After that some settings was applied in gdm process login screen, but not the rotation it just wont budge, that change had effects only in user process desktop. Is it so that mutter under gdm does not have same capabilities than under user process desktop? If so, this is just banging head on the wall.

Could someone please explain the architecture behind all this gdm/mutter/gnome-shell mess?

Opening Live Patch does not show any error, so why is there a red "!" mark on the shield icon in the Panel? I am using Ubuntu 22.04. I just restarted, and there are no errors on apt/snap level. nor on dpkg. Is this normal?

After upgrading from Ubuntu Desktop 22.04 LTS to Ubuntu Desktop 24.04.1 LTS, I found out one of monitors to have low brightness. I couldn't find any control to change the brightness and when I googled for solutions, nothing helped me. Here are some outputs:

lspci -k | grep -EA3 'VGA|3D|Display':

00:02.0 VGA compatible controller: Intel Corporation CometLake-S GT2 [UHD Graphics 630] (rev 03)
    DeviceName: Onboard - Video
    Subsystem: Dell CometLake-S GT2 [UHD Graphics 630]
    Kernel driver in use: i915

neofetch:

OS: Ubuntu 24.04.1 LTS x86_64 
Host: OptiPlex 7480 AIO 
Kernel: 6.8.0-41-generic 
Uptime: 15 mins 
Packages: 2244 (dpkg), 22 (snap) 
Shell: bash 5.2.21 
Resolution: 1920x1080 
DE: GNOME 46.0 
WM: Mutter 
WM Theme: Adwaita 
Theme: Yaru-blue-dark [GTK2/3] 
Icons: Yaru-blue [GTK2/3] 
Terminal: gnome-terminal 
CPU: Intel i5-10500 (12) @ 4.500GHz 
GPU: Intel CometLake-S GT2 [UHD Graphics 63 
Memory: 3298MiB / 15677MiB 

sudo ubuntu-drivers list returns nothing, while sudo ubuntu-drivers install returns

All the available drivers are already installed.

ls -al /sys/class/backlight returns

total 0
drwxr-xr-x  2 root root 0 Sep  4 11:41 .
drwxr-xr-x 85 root root 0 Sep  4 11:22 ..

xrandr | grep " connected" | cut -f1 -d " ":

DP-1
HDMI-2

xrandr --output DP-1 --brightness 1 and xrandr --output HDMI-2 --brightness 1 does nothing.

I tried the hack with Brightness controller, editing grub, Secure Boot DISABLED.

I am more than welcome for any advice.

I have also had to do a fresh install of Ubuntu Desktop, because upgrade from Ubuntu 22.04 LTS failed.

Update with Hannu's response: After implementing the setdbr function I get:

martin@dell:~$ setdbr
Current displays, numbered:
     1  DP-1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 510mm x 290mm
     2  HDMI-2 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 520mm x 290mm

And whatever I type, nothing changes. I tried setdbr 1 1.0, setdbr 2 1, setdrb 2 0, setdbr 1 0

UPDATE 2: I tried to turn on the night light and play with the intensity and both displays reacted. Thank to this I think the problem won't be Kernel-related and there is still some setting missing.

I am also missing the brightness slider in top right menu, maybe this could help?

UPDATE 3: output of lspci:

00:00.0 Host bridge: Intel Corporation Comet Lake-S 6c Host Bridge/DRAM Controller (rev 03)
00:02.0 VGA compatible controller: Intel Corporation CometLake-S GT2 [UHD Graphics 630] (rev 03)
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model
00:12.0 Signal processing controller: Intel Corporation Comet Lake PCH Thermal Controller
00:14.0 USB controller: Intel Corporation Comet Lake USB 3.1 xHCI Host Controller
00:14.2 RAM memory: Intel Corporation Comet Lake PCH Shared SRAM
00:14.3 Network controller: Intel Corporation Comet Lake PCH CNVi WiFi
00:16.0 Communication controller: Intel Corporation Comet Lake HECI Controller
00:16.3 Serial controller: Intel Corporation Comet Lake Keyboard and Text (KT) Redirection
00:17.0 SATA controller: Intel Corporation Comet Lake SATA AHCI Controller
00:1c.0 PCI bridge: Intel Corporation Comet Lake PCIe Port #6 (rev f0)
00:1d.0 PCI bridge: Intel Corporation Comet Lake PCI Express Root Port #9 (rev f0)
00:1f.0 ISA bridge: Intel Corporation Q470 Chipset LPC/eSPI Controller
00:1f.3 Audio device: Intel Corporation Comet Lake PCH cAVS
00:1f.4 SMBus: Intel Corporation Comet Lake PCH SMBus Controller
00:1f.5 Serial bus controller: Intel Corporation Comet Lake PCH SPI Controller
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (11) I219-LM
01:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader (rev 01)
02:00.0 Non-Volatile memory controller: Micron/Crucial Technology P1 NVMe PCIe SSD[Frampton] (rev 03)

ls -al /sys/class/backlight returns nothing.

A loud tikk sound is played when starting with handsfree.

In each use of handsfree this problem occurs only once.

I don't have that problem with the speaker.

Audio:
 Device-1: Intel Haswell-ULT HD Audio driver: snd_hda_intel
 Device-2: Intel 8 Series HD Audio driver: snd_hda_intel
 API: ALSA v: k6.6.15-amd64 status: kernel-api
 Server-1: PipeWire v: 1.0.3 status: active

I am using Ubuntu 20.04 with kde plasma. All of a sudden, my Dolphin file browser takes forever to open. Earlier it opened instantly, but now it is taking almost 30 seconds to start.

This seems to have started after an update; when I use kernel 5.11.0-38-generic there is no issue: the problem occurs when I use kernel 5.11.0-41-generic. In addition when on 5.41 the whole system seems to run slower.

When I run dolphin from the command line, there is no error output, and it is as slow as before to open.

I am using an Intel 4690k CPU with 16GB ram and SSD. I checked my drive health and it is fine.

After doing the upgrade to Xubuntu 20.04.2 LTS from Xubuntu 18.04.5 LTS on my HP Elitebook 820 G1 I've had an issue with my screen going blank at random. I can't see anything interesting in journalctl or dmesg.

The only way I've found to wake up the screen is to close and open the laptop lid.

I've tried changing the power management settings, but it doesn't help.

I'm starting to suspect that this is an issue with the new display driver not being fully compatible with my computer.

A solution might be to downgrade the display driver to the version used in Xubuntu 18.04.5 LTS?

Would be happy for suggestions for a solution for this problem!

Workarounds

Waking the screen by turning on and off the display

This command wakes the screen again:

xrandr --output eDP-1 --off && xrandr --output eDP-1 --auto

Waking the screen by hibernating and back

A better workaround is to program the power button as "hibernate" and push it to hibernate and then again to wake up. This resets the screen and has the pro of not messing up what's on what screen which happens when I run the above command.

Whenever I boot up, my monitor's settings are always zoomed in about at 10, out of a scale of 0-100.

It also happens if I turn my monitor off and on again.

If I change my Display settings to rotate my screen orientation from Landscape to Portrait and back, but not Landscape to Flipped Landscape and back.

And changing the Scale in the Display Settings menu doesn't mess up the Zoom again, either.

I have a Dell SP2208WFP, and my Monitors.xml looks like:

<monitors version="2">
  <configuration>
    <logicalmonitor>
      <x>0</x>
      <y>0</y>
      <scale>0</scale>
      <primary>yes</primary>
      <monitor>
        <monitorspec>
          <connector>HDMI-A-1</connector>
          <vendor>DEL</vendor>
          <product>SP2208WFP</product>
          <serial>RR268831CT0U</serial>
        </monitorspec>
        <mode>
          <width>1680</width>
          <height>1050</height>
          <rate>59.954250335693359</rate>
        </mode>
      </monitor>
    </logicalmonitor>
  </configuration>
</monitors>

...

And now, Scale is reset to 1... Because I exited a fullscreen app or something?? Scale doesn't seem to affect the actual monitor, anyways. I change it with Display Settings to 125%, and it changes to 1.25 in monitor.xml, but nothing changes to the monitor itself.

...

It even happens in Recovery Mode, when I don't have a DISPLAY variable set.

...

But, it doesn't seem to happen if I connect through VGA instead of HDMI...

Still happens in 26.04 Ubuntu Desktop, Doesn't happen on my Windows 10 machine, and zoom level changes accordingly when I between them using a UGreen HDMI splitter (ACBUGN50966).

Doesn't happen on a boot, until after the spinny icon / booting screen refreshes. Not sure what the refreshing indicates, but something?

I am currently using Ubuntu 19.10 with the unity DE and I always use mpv to play videos in Ubuntu. As mpv has few GUI options, there is no GUI option to rotate a video, but we can rotate it with the help of the command line. For example, we can rotate a video by 90 degrees using the command below:

mpv --video-rotate=90 /home/guest/new_vdo.mp4

This way (using the terminal) however, I have to type the command every time I want to rotate the video.

How can we create a keyboard shortcut to rotate a video which is currently playing in mpv?

I've encountered a problem while I was trying to set an encrypted logical partition for personal data. All I did was formating some free space on the same hard disk I installed Kubuntu using the KDE Partition Manager. I read multiples guides online on how to decrypt and use the encrypted partition and pretty much everyone suggests to use the cryptsetup command, then mount the partition somewhere in / and it should be ready to use. The problem is that whenever I launch the cryptsetup command, I receive the following error:

Cannot use device /dev/sda5 which is in use (already mapped or mounted)

Here is the command I launched:

sudo cryptsetup open /dev/sda5 partition-enc --type=luks

A not really elegant workaround seemed to be "deactivate" the logical partition in the KDE Partition Manager to make the cryptsetup command execute without errors, however, even doing so, the mounting process will give a unknown filesystem type 'crypto_LUKS', which means the file system has not been decrypted successfully, I reckon.

Disclaimer: I already searched for similar questions and issues online of course, but no one seems to be solved. I don't know if I'm doing something wrong but no guides or discussion I found seems to take this problem into account.

I am following the Udacity course here: https://classroom.udacity.com/courses/ud388/lessons/4628431284/concepts/53174719510923

I am trying to run their python program using Flask. I started vagrant with vagrant ssh

I then tried to run that python file by typing python api_server.py. But when I go to http://0.0.0.0:5000/ on my browser, I get:

Not Found
The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again. 

Then I tried typing curl 'http://127.0.0.1:5000' in vagrant but got the error

vagrant@vagrant-ubuntu-trusty-32:~$ curl 'http://127.0.0.1:5000'
curl: (7) Failed to connect to 127.0.0.1 port 5000: Connection refused

The api_server.py file is below:

#THIS IS A WEBSERVER FOR DEMONSTRATING THE TYPES OF RESPONSES WE SEE FROM AN API ENDPOINT
from flask import Flask
app = Flask(__name__)

#GET REQUEST

@app.route('/readHello')
def getRequestHello():
    return "Hi, I got your GET Request!"

#POST REQUEST
@app.route('/createHello', methods = ['POST'])
def postRequestHello():
    return "I see you sent a POST message :-)"
#UPDATE REQUEST
@app.route('/updateHello', methods = ['PUT'])
def updateRequestHello():
    return "Sending Hello on an PUT request!"

#DELETE REQUEST
@app.route('/deleteHello', methods = ['DELETE'])
def deleteRequestHello():
    return "Deleting your hard drive.....haha just kidding! I received a     DELETE request!"

if __name__ == '__main__':
    app.debug = True
    app.run(host='0.0.0.0', port=5000)  

I'm trying to install mongodb on ubuntu 15.10. While following this - Install Mongo 3.2 on Ubuntu 15.10 - i got the following error message:

W: GPG error: http://repo.mongodb.org trusty/mongodb-org/3.2 Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D68FA50FEA312927

So then I attempted to add the key like this:

me@devbox:/etc/test$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys D68FA50FEA312927

Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --homedir /tmp/tmp.CWnpUGSg5w --no-auto-check-trustdb --trust-model always --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyring /etc/apt/trusted.gpg.d/apt.postgresql.org.gpg --keyring /etc/apt/trusted.gpg.d/nginx_ubuntu_stable.gpg --keyring /etc/apt/trusted.gpg.d/webupd8team_ubuntu_java.gpg --keyserver keyserver.ubuntu.com --recv-keys D68FA50FEA312927
gpg: requesting key EA312927 from hkp server keyserver.ubuntu.com
gpg: keyserver timed out
gpg: keyserver receive failed: keyserver error

Not sure what else to try. I'm currently looking other posts here on this site to see if this has been addressed.

EDIT 1:

Based on this post: Can't add repo keys

I tried to run the command :

sudo gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys D68FA50FEA312927

and then retried:

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys D68FA50FEA312927

But it's still failing.

I got MS word document, person asked me to edit it, to add table of contents, to add page numbers, because she doesn't know how to do in MS Office. So I did with LibreOffice writer. But when I saved (tried several filetypes, including: .doc, .docx, .odt) and send file back to her through facebook firefox and chrome showed error in download list saying

"Blocked: May contain a virus or spyware - "

And actually it says same thing when I download file which I sent and try to open it. And when I did edited this file second time, this time with windows and MS word, everything worked just fine.

So what's the problem here... Do I have virus which is unlikely, not even because I'm on linux, but I know how viruses works and I do not open suspicious files, I'm not going to suspicious websites and this ubuntu 14.04 LTS installed 2 weeks ago.

Something should be wrong with LibreOffice, right.. ?

Can't find any info on the internet about this issue...

And I can replicate this by creating new file with LibreOffice Writer, saved it in .odt with random text with two fonts, Times New Roman and LiberationSeriff, sent it via facebook and can not open it, same error...

Did some experiments and: it's Times New Roman font what caused the problem... What should I do? I need this font...

EDITED: So I turned off this blockage on firefox and I can download file and open it, haven't tried to open it in MS office yet, so not sure if it will work if something really wrong what libre does with MS fonts...

UPDATE: well... everything works in MS Office, nothing bad happened with fonts or document when I opened it. So everything works, but still, browser treats it as virus or spyware. :) I guess LibreOffice guys should know that...

Is it possible to make the password visible as asterisks (or any other character) on using sudo command?

Currently, it does not display anything, thus making it difficult to count the number of keystrokes pressed..

System Settings can be run from the launcher (pinned by default), the Dash, or the power cog. But what command would I enter in a terminal window if I want to run it from there?