19
votes
How can I change my webcam's power line frequency setting?
On the command line, you can set the uvcvideo driver's power line frequency setting to the 50 Hz value with:
v4l2-ctl --set-ctrl=power_line_frequency=1
If your webcam is not /dev/video0, add a -d /...
- 114k
15
votes
Accepted
How do I determine the apt package name for a given PyPI package?
The most reliable way to find a Debian package matching a given Python package involves knowing how the latter should be imported. For example, pandasql is imported from pandasql; if it was available ...
- 481k
14
votes
Accepted
Install a Python package on Debian/Devuan when apt has no package for it
The fact that Debian won't let you do that does come from somewhere: pip system-wide installations are, by design, incompatible with system-managed python installations. Pip itself has recognized that ...
- 51.2k
9
votes
Accepted
apt complains about change of Suite from testing to stable
Congratulations! You've "stuck" with a testing release of your distribution (in your case, Devuan) all the way, and now it's become the stable release version!
This is not a problem. You ...
- 11k
7
votes
The Devuan machine-id patch - solving a problem or blowing smoke?
As I understand it, the rationale is
the machine-id is world-readable (for some value of “world” meaning any process on the computer, it’s not exposed by default);
some people report that it’s being ...
- 481k
6
votes
Accepted
Do snaps require systemd?
Searching for the package with apt-cache shows that it is not available for installation, and it can be found on the list of banned packages. It is banned for requiring systemd to function.
Snaps ...
- 16.3k
6
votes
Is it possible to run Devuan Ascii with OpenRC init?
tl;dr
Yes, it can be, but it is slower and less efficient than the default sysvinit setup.
The Default (sysvinit)
A default Devuan Ascii installation already does parallel bootup with insserv and ...
- 429
5
votes
Accepted
Devuan as a rolling release?
Can Ceres be defined a rolling release?
Devuan Ceres is the unstable suite ( Sid), it is a cyclic-rolling distribution.
Is it possible to get Devuan Linux as a rolling release?
Install the ascii ...
- 69.9k
5
votes
Is it safe to dpkg --set-selections on a newer version of a distro?
Yes, it is. All that can go wrong is that you end up attempting to select packages which have been removed; in that situation,
unknown packages will be ignored with a warning.
(See the dpkg manpage.)...
- 481k
4
votes
Accepted
Where can I get Devuan testing version installation images?
Not as far as I could see. Suggest you post a query in their forum, ask in their IRC Channel, or visit them via Twitter.
- 3,936
4
votes
Accepted
Devuan... Reduce time to wait while internet interfaces being configured during boot
Maybe the udev equivalent (eudev or mdev according to Devuan) isn't behaving 100% the same with regard to hotplug events. It's also possible if you're using a switch that the switch has a very long ...
- 39.5k
4
votes
Accepted
How can I add non-free network firmware to my Devuan install?
As devuan is based on Debian, you add the Debian non-free repositories in /etc/apt/sources.list
deb http://deb.debian.org/debian stretch non-free
deb http://deb.debian.org/debian-security/ stretch/...
- 58k
4
votes
What are the main differences between Devuan distros and their Debian 'base'
Devuan syncs all Debian packages with the exception of systemd (and for a bizarre reason file-rc in ASCII). It fixes anything that breaks due to these two packages missing and adds a bit of branding ...
- 140
4
votes
How can I change my webcam's power line frequency setting?
If the app you're using does not allow you to make the relevant settings, and there's no "settings applet", use an app which can make these settings.
A prominent example would be guvcview - ...
- 11k
4
votes
Accepted
"_split_longopt: command not found" when trying tab-completion
Apparently, while the _split_longopt function is gone from /usr/share/bash-completion/bash_completion, there are still lots of packages which rely on its existence:
$ grep -rl "\\b_split_longopt\\...
- 11k
4
votes
"_split_longopt: command not found" when trying tab-completion
@einpoklum: Thanks for locating the root cause. As requested ..
Or more pragmatically, do what the developers should have done in the first place; Make it backwards compatible. So, just add this to ...
- 200
3
votes
Cron is trying (and failing) to open env file: /etc/environment
An inelegant but perfectly valid solution is to give those modules what they want: As root, execute
touch /etc/environment
and to make sure the permissions are right, just in case:
chmod 644 /etc/...
- 11k
3
votes
PXE boot debian-installer preseed.cfg - how to get to present only certain questions (eg. hostname)
Several hours of testing later, managed to find a working answer. Wanted to document should others come looking for an answer.
The answer is not to do any netcfg configuration in the preseed file at ...
- 71
3
votes
An application comes with a .desktop file; how do I use it?
Drop the .desktop file in /usr/local/share/applications and it should show up in your launcher automatically. This is described in the Desktop Entry Specification (which specifies .desktop files).
...
- 481k
3
votes
What's the idiomatic way to allow incoming connections on a TCP port, as of 2021?
As you are using Debian 11, the recommended way would be indeed nftables. Nftables keeps its configuration in a single file:
/etc/nftables.conf which is then read on startup.
Debian ships ...
- 802
3
votes
Accepted
stable package is different to rmadison query
Based on the devscripts package information in Devuan, I get the impression that it is copied as-is from Debian with no change, so
rmadison gpodder
queries the Debian servers, not Devuan’s. As a ...
- 481k
3
votes
Install a Python package on Debian/Devuan when apt has no package for it
As has been noted, there are good reasons why pip no longer lets you install packages system wide, but I also have this use case managing software for large numbers of users who may have access to the ...
- 131
3
votes
How do I determine the apt package name for a given PyPI package?
The honest answer is that you will have to make educated guesses or look for the files within. ("Educated guesses" do include doing things like apt search … with the pypi package name)
...
- 51.2k
3
votes
Accepted
Running docker in an unprivileged devuan lxc container (on proxmox)
Assuming you are using a recent version of Proxmox VE (I use 8.4.1) solving your case was quite the rabbit hole.
Why am I able to install docker engine successfully in an unprivileged ubuntu lxc ...
- 401
2
votes
Why do I have a `/root/.rpmdb` folder on a Debian-based distro?
Based on the link provided by @SergiyKolodyazhnyy :
If you've used a stand-alone installer for some third-party kernel module in the DKMS framework - DKMS module installers support multiple distros, ...
- 11k
2
votes
Accepted
How can I change my webcam's power line frequency setting?
Use the control utility for the Linux UVC driver
(This is a variant on @telcoM's answer)
(USB) webcams are controlled by the Linux USB Video Client driver. Their device files are /dev/video0, /dev/...
- 11k
2
votes
How can I get rid of the NetworkManager applet if I use wicd?
Solutions as presented by Archwiki - this is a mere recitation.
In short the nm-applet package cannot be removed as it is essential part of cinnamon but you can suppress loading it by creating a ...
- 14.1k
2
votes
LXC container will start at the command line, but not automatically, from cron's @reboot or from /etc/rc.init
To start LXC containers at boot, the lxc system service runs the lxc-autostart, as documented here.
To configure autostart, put the following two lines in the container configuration:
lxc.start.auto ...
- 1,359
Only top scored, non community-wiki answers of a minimum length are eligible