Brightness slider not working

[catalinux]

After an update last night the brightness slider from the battery icon is not working. I can only use the Fn keys to adjust the brightness of the screen - Here is a screenshot of the thing I am talking about (if it helps) - Is there any fix for this?

[Jerry3904]

After an update last night the brightness slider from the battery icon is not working. I can only use the Fn keys to adjust the brightness of the screen - Here is a screenshot of the thing I am talking about (if it helps) - Is there any fix for this?

It's working correctly here on a clean install of RC1 on my testing machine. The setting survives a logout/login, but not a reboot (which makes pretty good sense to me).

[catalinux]

I am on MX 16.1. I rebooted, shut down and powered up again with no results. The slider just won't adjust the brightness of the display no matter what. Besides, I see that it is slided all the way to the max whenever I boot my computer.

[Mauser]

The "Display brightness" slider in the taskbar in MX-17 does nothing when I adjust it.

[Jerry3904]

Is that a laptop or a desktop?

[richb]

Is that a laptop or a desktop?

Which highlights the need for posting system specifications when asking for help. MX Tools > Quick System info, highlight the output, copy and paste into your post enclosing the text in code by highlighting the text and clicking on code atop the post block. And in this case as Jerry indicated whether it is a desktop or laptop.

[Mauser]

Is that a laptop or a desktop?

It's a desktop.

[Mauser]

Is that a laptop or a desktop?

Which highlights the need for posting system specifications when asking for help. MX Tools > Quick System info, highlight the output, copy and paste into your post enclosing the text in code by highlighting the text and clicking on code atop the post block. And in this case as Jerry indicated whether it is a desktop or laptop.

Kernel: 4.13.0-1-amd64 x86_64 bits: 64 Desktop: Xfce 4.12.3
Distro: MX-17_x64 Horizon December 15, 2017
Machine: Device: desktop System: HP product: 510-p026 serial: N/A
Mobo: HP model: 81B4 v: 00 serial: N/A UEFI [Legacy]: AMI v: F.13 date: 08/02/2016
CPU: Quad core Intel Core i5-6400T (-MCP-) cache: 6144 KB
clock speeds: max: 2800 MHz 1: 2200 MHz 2: 2200 MHz 3: 2200 MHz 4: 2200 MHz
Graphics: Card: Intel HD Graphics 530
Display Server: x11 (X.Org 1.19.2 ) drivers: modesetting (unloaded: fbdev,vesa)
Resolution: 1920x1080@60.00hz
OpenGL: renderer: Mesa DRI Intel HD Graphics 530 (Skylake GT2) version: 4.5 Mesa 13.0.6
Audio: Card Intel Sunrise Point-H HD Audio driver: snd_hda_intel
Sound: Advanced Linux Sound Architecture v: k4.13.0-1-amd64
Network: Card-1: Realtek RTL8111/8168/8411 PCIE Gigabit Ethernet Controller driver: r8169
IF: eth0 state: up speed: 100 Mbps duplex: full mac: ec:8e:b5:d8:80:88
Card-2: Intel Wireless 3165 driver: iwlwifi
IF: wlan0 state: down mac: 06:d1:34:30:4b:07
Drives: HDD Total Size: 8001.5GB (27.2% used)
ID-1: /dev/sda model: WDC_WD4003FZEX size: 4000.8GB
ID-2: USB /dev/sdb model: Elements_107C size: 4000.8GB
Partition: ID-1: / size: 3.6T used: 638G (19%) fs: ext4 dev: /dev/sda3
ID-2: swap-1 size: 12.90GB used: 0.00GB (0%) fs: swap dev: /dev/dm-0
Sensors: System Temperatures: cpu: 34.0C mobo: 27.8C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 219 Uptime: 1:10 Memory: 1940.3/11881.1MB Client: Shell (bash) inxi: 2.3.53

[richb]

As far as I know the brightness slider only works on a laptop since it has an integrated screen.

[richb]

By the way brightness controller is in the repos and can control a discrete (desktop) monitor.