I tried to update Firefox Snap (from 100 to 101):
sudo snap refresh firefox
but I got a message that an update was pending, but it could not update because Firefox was running an app, although I did close all Firefox windows and I couldn't find anything with pgrep firefox
After a reboot, the update command was working.
So, how do you update Firefox on Ubuntu 22.04 without restarting the system?
Just did a clean 20.04 install on my laptop.
Tried to install flatpak (cli), to install some additional software
Doesn't work:
sudo apt install flatpak
Package flatpak is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
xdg-desktop-portal
Which is nonsense, because it is installed and flatpak doesn't work:
flatpak
flatpak: command not found
Why is flatpak not available in 20.04?
How do I install flatpak (cli)?
UPDATE Flatpak is available after doing:
sudo apt update && sudo apt full-upgrade -y
(kudos to mook765)
Still:
Using Ubuntu 19.10 I have 3 output devices in Settings -> Sound -> Output-Device:
AMD 2400G, Asus PRIME B450M-A
I need this priority:
So it should switch to headphones if plugged in, otherwise HDMI.
Now it starts with HDMI, no matter if headphones is plugged in. When I select headphone, and later unplug headphone, it falls back to S/PDIF which is not used at all.
Shouldn't the GUI offer a draggable list to order my preferences? I kinda like the simplicity of Gnome GUI, but sometimes it's too minimal.
How do I set priority?
Ubuntu 1904, both X and Wayland. AMD 2400G, ASUS motherboard with 3 screens: HDMI,VGA,DVI.
When I leave my computer, it will blank the screen after the timeout, then my 3 monitors will fall asleep, but they will wakeup after 10 seconds or so, and never enter power save mode again. They will keep showing the lock screen.
So it is a costly affair, burning 100 Watts, and shortening lifespan of my screens.
Also when I turn off my screens manually:
xset dpms force off
They turn off, and wake up after 10 seconds.
Could be this bug 1292041. But I doubt because it's is also happening when powering off the screens with xset.
How do I get my screens to enter powersave mode?
I've installed Arduino IDE (1.8.5) with Flatpak (Kubuntu 18.04).
Attached my Wemos D1 Mini to the USB port, but can't upload a sketch:
An error occurred while uploading the sketch
error: cannot access /dev/ttyUSB0
Seems a bit silly that an IDE for a device in Flatpak can't access a device out of the box.
How do I fix that?
This question is about Flatpak.
What additional action is necessary to get the Flatpak version of Arduino IDE working with a device?
(IMHO Flatpak needs to provide additional info/help in some way, installing with Ubuntu Make
umakeseems easier.)
In Kubuntu 18.04 Okular can read any selection text, or the whole document by default.
That is great, it is using qtspeech5 but
Can't find any setting in system-settings for speech.
After I ugraded form Ubuntu 16.04 to Ubuntu Mate 18.04, I wanted to try out GIMP 2.10, so I installed the flatpak GIMP 2.10.2 from flathub. (The snap containers only offers 2.10.0 at the moment)
sudo apt install flatpak
flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
flatpak search gimp
flatpak install flathub org.gimp.GIMP
Running GIMP:
flatpak run org.gimp.GIMP
Works fine, but now I need some plugins:
How do I install plugins like Liquid Rescale or G'MIC. The old way won't work, it will install GIMP as a dependency.
sudo apt install gimp-plugin-registry
After updating from 16.04 to 18.04, GNOME3 is to slow on my hardware (2010 dual core, 4GB, 128GB SSD)
So I decided to switch to Lubuntu, way faster.
All fine, except: there seems to be no password manager/keyring. So I installed seahorse and libpam-gnome-keyring.
Doesn't work, a terminal is still asking every time in the terminal for my ssh passwords. I can do ssh-add .ssh/id_rsa, but that will save the password only for terminal programs, not for the file-manager.
How do i get the Ubuntu behavior asking a passphrase once in a GUI dialog and saving it for the session for GUI programs and terminal?
It must be a LXDE config issue, all packages are there even when lubuntu-desktop is installed next to Ubuntu, it won't work using the lubuntu-environment.
journalctl | grep -i gnome-keyring-daemon
gnome-keyring-daemon[890]: couldn't set environment variable in session: GDBus.Error:org.freedesktop.DBus.Error.InvalidArgs: Type of message, '(ss)', does not match expected type '(s)'
Starting seahorse
(seahorse:1488): dbind-WARNING **: 08:36:27.966: Error retrieving accessibility bus address: org.freedesktop.DBus.Error.ServiceUnknown: The name org.a11y.Bus was not provided by any .service files
The latest updates (4/1/2018) make my laptop constantly crash the GUI/Unity:
(Intel Pentium su4100 processor)
syslog:
Jan 5 11:38:53 1810 kernel: [ 1850.327738] compiz[11911]: segfault at 0 ip 00007f6c7baf0c16 sp 00007ffd5ec71c60 error 4 in i965_dri.so[7f6c7b513000+82d000]
After login I end up with an empty desktop, just a wallpaper, GUI/Unity are in a crash loop:
Simply, the computer is not usable. Same for guest login. The only thing working: open up a terminal CTRL+ALT+T to examine log files.
I somehow forced Low Graphics Mode on Unity to let me log in and file the bug, but still lots of problems:
Any ideas for a solution or workaround?
UPDATE
If you have the same/ very similar problems, follow the link to my bug report and mark there that you're affected too. Or file your own. Please leave a comment if you wish, or upvote - this is a nasty problem - but an answer should offer a fix or a workaround so users can use their computer again.
Without proper bug reports, Ubuntu can't fix issues.
To update flash in Chromium-based browsers (Ubuntu 16.04) I have to run manually :
sudo update-pepperflashplugin-nonfree --install
This will update the flash plugin for Chromium and Opera.
BTW there is also a bug in update-pepperflashplugin-nonfree:
update-pepperflashplugin-nonfree --status
Flash Player version installed on this system : 22.0.0.209
Flash Player version available on upstream site: 22.0.0.209
While the latest version is 23.0.0.162, the only way to install that version is to remove it first, and reinstall it later:
sudo apt-get --purge remove pepperflashplugin-nonfree
sudo apt install pepperflashplugin-nonfree
sudo update-pepperflashplugin-nonfree --status
Flash Player version installed on this system : 23.0.0.162
Flash Player version available on upstream site: 22.0.0.209
So it's buggy, but more importantly, why isn't the update of this important internet plugin and (major weakness) not done (or hooked into) the general update process sudo apt update; sudo apt upgrade ?
I like the speed of MuPDF and the ui of Zathura
Luckily there is a mupdf-backend for Zathura.
Unfortunately it is not in the repositories and building following the instructions failed on an error:
Makefile:25: *** "The minimum required version of zathura is 0.2.0".
While the version that I have installed is zathura 0.3.5
How do I install the plugin in Ubuntu (16.04)?
Since I updated my Acer 1810TZ laptop to 16.04 WIFI is unstable.
Intel Centrino Wireless-N 1000.
dmesg | grep iwlwifi
[ 4.897866] iwlwifi 0000:02:00.0: can't disable ASPM; OS doesn't have ASPM control
[ 4.904631] iwlwifi 0000:02:00.0: loaded firmware version 39.31.5.1 build 35138 op_mode iwldvm
[ 4.960067] iwlwifi 0000:02:00.0: CONFIG_IWLWIFI_DEBUG disabled
[ 4.960074] iwlwifi 0000:02:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
[ 4.960078] iwlwifi 0000:02:00.0: CONFIG_IWLWIFI_DEVICE_TRACING enabled
[ 4.960083] iwlwifi 0000:02:00.0: Detected Intel(R) Centrino(R) Wireless-N 1000 BGN, REV=0x6C
[ 4.962373] iwlwifi 0000:02:00.0: L1 Enabled - LTR Disabled
I had bad WIFI performance in the past but in 15.10 it was working perfectly.
I have this in the dmesg:
7639.025981] wlan0: deauthenticating from 64:66:b3:4f:eb:5d by local choice (Reason: 3=DEAUTH_LEAVING)
[ 7639.160055] cfg80211: World regulatory domain updated:
[ 7639.160062] cfg80211: DFS Master region: unset
I read some tips to disable power settings sudo iwconfig wlan0 power off, but that doesn't make much difference now.
Any ideas to improve it? Can I use different firmware or how to debug?
Ubuntu doesn't offer paid-for software in the Software Center in 16.04.
Will the Snap Store become the way to distribute proprietary paid for software on Ubuntu?
Ubuntu Make is a tool to install some latest versions of popular developers tools. At least more recent versions then the repository is offering. It is invaluable for e.g. Arduino IDE.
If I understand snaps on 16.04 correctly, the new way would be packaging Arduino IDE as a snap package. Will snap supersede `Ubuntu Make?
One the most difficult things for visually impaired people is locating the mouse looking up to the screen.
Therefore enabling locate mouseor locate pointer give some extra visual attention (flashing orange circle/waves) after pressing CTRL. (difficult to catch in screenshot: on the left)
Xubuntu doesn't have this invaluable tool, and Ubuntu is too heavy for the 1GB, dual core old hardware. Gnome has it, Unity has it, Compiz has it, Mint has it. Xubuntu/XFCE doesn't have it.
It is not about a bigger mouse, that helps a bit. Some flashing attention is needed.
Using high contrast theme.
If Lubuntu has it, I consider switching from Xu to Lu.
When I run the the following command in a terminal I get different output. I try to find out if I am a member of the Wireshark group.
groups $USER
Does list wireshark
groups
Does not list wireshark
So do I belong to the Wireshark group or not?
I installed Wireshark. Running as root is not recommended, so
I Did
sudo dpkg-reconfigure wireshark-common
According to:
http://wiki.wireshark.org/CaptureSetup/CapturePrivileges
Answered Yes, Logout out Started Wireshark and got this message:
couldn't run /usr/bin/dumpcap in child process: Permission Denied.
I think I followed the recommended way of configuring Wireshark, it worked in 13.10, it doesn't in 14.04
FYI, reconfiguring wireshark-common is actually setting the group for dumpcap to Wireshark. Still it doesn't work. I checked that.
How should it be done in 14.04?
I can't find a locate pointer feature (anymore) in Xubuntu.
Is there an Xubuntu 13.10 (XFCE) alternative for the Show Mouse Accessibility CCSM plugin for ubuntu?
My mother is slightly visually impaired and has difficulties finding the mouse. Her computer is to old/weak to run Ubuntu/Unity.
UPDATE
Still not present in 14.04, but I noticed the feature exists in default Debian: Show position of pointer when the Control key is pressed, maybe that's GNOME not XFCE.
As I recall correctly it existed in Xubuntu in older versions too, why has this extremely valuable feature been dropped?
When I plug my FiiO E7 USB Audio DAC & Amp in Ubuntu 13.04, it is recognized as Audio DAC but only via the Analog Output port.
I have to log-out and in again before the USB Audio DAC Digital Output (S/PDIF) comes available in Sound settings, which has much better quality.
How can I enable the Digital Output manually, so I don't have to logout?
On Ubuntu 12.04 ImageMagick doesn't seem to support webp.
convert flyer.png flyer.webp
Creates a png file with webp extension.
On webp docs is stated that ImageMagick does support webp
$ convert --version`
Version: ImageMagick 6.6.9-7 2012-08-17 Q16
I have these both installed:
libwebp-dev - Lossy compression of digital photographic images.libwebp2 - Lossy compression of digital photographic images.Also, convert can't decode a webp file.
What's wrong, and is this an Ubuntu bug?