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IDProjectCategoryView StatusLast Update
0008616Kali LinuxGeneral Bugpublic2024-03-04 07:15
ReporterRaees Khan Assigned Toarnaudr  
PrioritynormalSeverityminorReproducibilityhave not tried
Status closedResolutionfixed 
Summary0008616: Brightness slider not functioning on Kali Linux with XFCE4 desktop environment on MacBook Pro 2012 Retina Display.

The brightness slider in the XFCE4 desktop environment on Kali Linux is not working on my MacBook Pro 2012 with a Retina Display. The issue persists regardless of attempting to increase or decrease the brightness using the slider. The problem is observed on Kali Linux version 6.5.0-kali3-amd64, running kernel 6.5.0-kali3-amd64 0000001 SMP PREEMPT_DYNAMIC Debian 6.5.6-1kali1 (2023-10-09) x86_64 GNU/Linux.
Steps to Reproduce:

Boot the system into Kali Linux with the XFCE4 desktop environment.
Open the brightness slider from the desktop environment settings or panel.
Attempt to increase or decrease the brightness using the slider.

Expected Behavior:
The brightness slider should adjust the screen brightness accordingly.

Actual Behavior:
The brightness slider does not have any impact on the screen brightness. The brightness remains unchanged regardless of slider adjustments.

Additional Information:

Operating System: Kali Linux 6.5.0-kali3-amd64
Kernel Version: 6.5.0-kali3-amd64 0000001 SMP PREEMPT_DYNAMIC Debian 6.5.6-1kali1 (2023-10-09) x86_64 GNU/Linux
Desktop Environment: XFCE4
Hardware: MacBook Pro 2012 Retina Display




2024-03-02 07:57

reporter   ~0018959

Ask for support in the XFCE community instead of here?



2024-03-04 07:14

manager   ~0018972

From your description, it seems that you installed Kali on the MacBook (ie. not running in a VM)?

In that case, it seems that you're running into hardware support issue. You should try to do Internet search, not about Kali, but more generally about "Linux MacBook Pro 2012 Retina Display screen brightness" and see what comes up. Maybe it's a known issue. You can try to add "xfce" to your research, but I suppose that xfce doesn't do anything fancy, so if there's an issue, it's probably something more generic to Linux in general.

With that being said, sorry but there's nothing we can do, we don't have the bandwidth to troubleshoot hardware support issue. Hopefully the explanation and solution is out there on the Internet and you'll find it.

Issue History

Date Modified Username Field Change
2024-01-29 21:37 Raees Khan New Issue
2024-03-02 07:57 kali-bugreport Note Added: 0018959
2024-03-04 07:14 arnaudr Note Added: 0018972
2024-03-04 07:15 arnaudr Assigned To => arnaudr
2024-03-04 07:15 arnaudr Status new => closed
2024-03-04 07:15 arnaudr Resolution open => fixed