Install Q Light Controller Plus on CachyOS

What should I do after installing Q Light Controller Plus?

1. Open Q Light Controller Plus from your app menu.
2. Or run qlcplus-qml in a terminal.
3. Run pacman -Qi qlcplus to see the installed version and the optional dependencies.

How do I update or remove Q Light Controller Plus?

Update:

Remove:

What is Q Light Controller Plus?

Q Light Controller Plus (QLC+) is a free and cross-platform software to control DMX or analog lighting systems like moving heads, dimmers, scanners etc. This project is a fork of the great QLC project written by Heikki Junnila that aims to continue the QLC development and to introduce new features.

Package description: Q Light Controller Plus, The open DMX lighting desk software for controlling professional lighting fixtures.

Reviews of Q Light Controller Plus on CachyOS

From GitHub

mcallegari/qlcplus · ★ 1,566 stars · last commit Nov 1, 2026 · latest release Oct 5, 2026

Real issues opened by users on the project's GitHub, shown as written with a link to each one. 10 most reacted issues opened in the last two years plus the 5 newest issues, bots, pull requests, non English and political posts skipped, capped at 15 per repo. Fetched Nov 1, 2026.

1. [v4][v5] Open tasks for volunteersClosed

   I am opening this "super task" to summarize open tasks that are available for developers willing to help out @Jurrie @shaforostoff

   @mcallegari · Apr 23, 2025 · 3 reactions · 0 comments · View on GitHub

2. [feature] Sync Virtual Console button colour to RGB button custom feedbackOpen

   QLC+ allows users to assign MIDI feedback to buttons, including RGB colours for supported controllers like the Akai APC Mini MK2. Currently, when a user assigns a colour to a Virtual Console button and also uses a custom feedback value, they must set the colour twice: 1. Set the…

   @yestalgia · Jul 23, 2025 · 2 reactions · 0 comments · View on GitHub

3. port webaccess to v5Closed

   As many of you know, the webaccess feature is currently missing/not (yet) available in QLC+ 5. I started porting webaccess to v5 a couple of weeks ago, but I do not have the time to complete and especially test it fully on my own. The current progress is described below. At the…

   @jpue · Nov 22, 2025 · 2 reactions · 5 comments · View on GitHub

4. [5.2.1] segfault and crash (VCPage::inputValueChanged)Open

   While using QLC+ v5.2.1, I notice repeated crashed while working on the virtual console page. It will freeze for a moment, then crash. From coredumpctl/gdb, I found out that the issue seems to come from VCPage::inputValueChanged. This issue has happened a few times to me while…

   @bean-frog · May 16, 2026 · 2 reactions · 1 comments · View on GitHub

5. Improvement: Windows: Single FTDI lib systemwideClosed

   Currently there live two instances of library ftd2xx.dll in the overall system. One is delivered and maintained by Windows (incl update service) at c:\Windows\system32\ the other one is QLC supplied at QLC installation directory. Reason to maintain the variant at QLC installation…

   @vheat · Apr 30, 2025 · 1 reactions · 1 comments · View on GitHub

6. [v4] RGB Matrix colors lost when changing algorithmClosed

   Reported here Work started in #1727 It looks like something that needs to be handled in the engine but I haven't had time to look into it yet.

   @mcallegari · Apr 23, 2025 · 1 reactions · 1 comments · View on GitHub

7. Improved build instructionsClosed

   I improved the latest QLC+ build instructions from the Wiki. Changes: Use of fenced code blocks for better readability and user experience (copy button) Additionally highlight inline code (paths/commands) Unfortunately, it's not possible to open pull requests for the Wiki. The…

   @p-rogalski · Aug 5, 2025 · 1 reactions · 1 comments · View on GitHub

8. [QLC+ 5] Animation widget External Control mappings not savedClosed

   You can successfully assign an external control to the Animation widget slider, however, it is lost when you restart QLC+ even if you have saved the project. I note in the Google sheet it states user controls are missing for Animation widget but I'm not sure if that also means…

   @rob-fi · Dec 30, 2025 · 1 reactions · 1 comments · View on GitHub

9. [QLC+ 5] Fixture group rename with F2 not persistedClosed

   When fixture groups are renamed using the keyboard shortcut F2, the new name is displayed but not actually applied. This works fine for renaming fixtures. 1. Select a fixture group 2. Press F2 --> the name can be edited in-place 3. Edit the name 4. Press ENTER or click away 5.…

   @pomowunk · Jan 2, 2026 · 1 reactions · 1 comments · View on GitHub

10. [QLC+ 5] Emptied fixture groups are becoming unreachableClosed

    When deleting the last fixture of a group, the group disappears from view. So do the now empty groups 'Universe 1' and 'New group 1'. There is no way to reuse that group name though, as renaming a group to that name shows a dialog about the name existing already (albeit not…

    @pascalfleury · Dec 19, 2025 · 1 reactions · 0 comments · View on GitHub

11. [QLC+5] Same-named Scenes: rename/delete removes the wrong Function-tree rowOpen

    With two same-named Scenes in one folder, renaming or deleting the second can remove the first Scene's Function-tree row instead. Rename: the renamed Function ends up with duplicate tree references. Delete: the tree retains a reference to the deleted Function. The automated…

    @1kgofpastaeveryday · Nov 1, 2026 · 0 comments · View on GitHub

12. qmlui network sync: opt-in enqueueAction misses many changesClosed

    Hi! Im currently playing around with qlc+ on a raspberry pi and I heavily use the client-server structure. I noticed that the Simple Desk "reset universe" button doesnt sync over the network. SimpleDesk::resetUniverse() never calls Tardis::enqueueAction(), so a client clears its…

    @giomf · Nov 1, 2026 · 3 comments · View on GitHub

13. Function preview flashes the function when there is a slider in VCOpen

    Function preview stops immediately when the function is present in VC with a slider. Consequently also a collection cannot be previewed when there is a slider of a nested scene. You can watch the red stop function button: it get activated for an instant. In 3d view you'll see the…

    @qlcplusme · Oct 31, 2026 · 0 comments · View on GitHub

14. v5 appimage needs libftdi1 installedClosed

    Qlc+5 appimage won't detect the Entttec pro without installing libftdi1, in Debian, I do not remember if it's been always the case. An extra info, in Debian 14 libftdi1 it's not available and installing libftdi1-2 doesn't solve the issue, I had to install libftdi1 from Debian 13.…

    @qlcplusme · Oct 31, 2026 · 1 comments · View on GitHub

15. [5.3.0] Native clients get the saved project file instead of the current projectClosed

    With --server-allow-all, a native client that connects gets the project file last saved on the server instead of the current project. If the server project was never saved, the client gets an empty project: After saving, the client gets that file, without changes made since. So…

    @giomf · Oct 28, 2026 · 0 comments · View on GitHub