[KDE Plasma] screen brightness can no longer be controlled by Fn key

ewon_c · 2019-02-26 17:50:56

Hi Arch community,

Recently after some system updates, I can no longer control screen brightness using Fn key. However, I can still control it by dragging "Display Brightness" bar at system tray
Checked global keyboard shortcuts settings (see screenshot below), everything seems normal. Volume control and keyboard backlight control still work with Fn key.
Steps I took: reinstalled package `systemd` and `powerdevil` , no luck

Current kernel paramaters: removing pci=nomsi or acpi_osi = doesn't seem to help

GRUB_CMDLINE_LINUX_DEFAULT="quiet pci=nomsi acpi_osi="

I'm running out of ideas where to investigate. I'd happily provide more info if needed. Any suggestion will be appreciated!

dmesg |  grep Error
[    0.653563] ACPI BIOS Error (bug): Could not resolve [\_SB.PAGD._STA._OSI], AE_NOT_FOUND (20181003/psargs-330)
[    0.653567] ACPI Error: Method parse/execution failed \_SB.PAGD._STA, AE_NOT_FOUND (20181003/psparse-516)
[    0.669210] ACPI BIOS Error (bug): Could not resolve [\_SB.PAGD._STA._OSI], AE_NOT_FOUND (20181003/psargs-330)
[    0.669214] ACPI Error: Method parse/execution failed \_SB.PAGD._STA, AE_NOT_FOUND (20181003/psparse-516)
[    0.722916] ACPI BIOS Error (bug): Could not resolve [\_SB.PAGD._STA._OSI], AE_NOT_FOUND (20181003/psargs-330)
[    0.722920] ACPI Error: Method parse/execution failed \_SB.PAGD._STA, AE_NOT_FOUND (20181003/psparse-516)
[    0.926093] RAS: Correctable Errors collector initialized.
[    7.929836] ACPI BIOS Error (bug): Could not resolve [\_SB.PAGD._STA._OSI], AE_NOT_FOUND (20181003/psargs-330)
[    7.929843] ACPI Error: Method parse/execution failed \_SB.PAGD._STA, AE_NOT_FOUND (20181003/psparse-516)
[    7.932261] ACPI BIOS Error (bug): Could not resolve [\_SB.PAGD._STA._OSI], AE_NOT_FOUND (20181003/psargs-330)
[    7.932270] ACPI Error: Method parse/execution failed \_SB.PAGD._STA, AE_NOT_FOUND (20181003/psparse-516)
[    8.046772] ACPI BIOS Error (bug): Could not resolve [\_SB.PAGD._STA._OSI], AE_NOT_FOUND (20181003/psargs-330)
[    8.046779] ACPI Error: Method parse/execution failed \_SB.PAGD._STA, AE_NOT_FOUND (20181003/psparse-516)
[    8.495697] ACPI BIOS Error (bug): Could not resolve [\_SB.PAGD._STA._OSI], AE_NOT_FOUND (20181003/psargs-330)
[    8.495705] ACPI Error: Method parse/execution failed \_SB.PAGD._STA, AE_NOT_FOUND (20181003/psparse-516)
[    8.519813] ACPI BIOS Error (bug): Could not resolve [\_SB.PAGD._STA._OSI], AE_NOT_FOUND (20181003/psargs-330)
[    8.519819] ACPI Error: Method parse/execution failed \_SB.PAGD._STA, AE_NOT_FOUND (20181003/psparse-516)
[    8.889873] ACPI Error: Found unordered _BCL package (20181003/video-894)
[    8.891164] ACPI Error: Current brightness invalid (20181003/video-378)

inxi -Fz
System:    Host: Dell-Arch Kernel: 4.20.12-arch1-1-ARCH x86_64 bits: 64 Desktop: KDE Plasma 5.15.1 Distro: Arch Linux 
Machine:   Type: Convertible System: Dell product: Inspiron 7573 v: N/A serial: <filter> 
           Mobo: Dell model: 06TMW5 v: A00 serial: <filter> UEFI: Dell v: 1.12.0 date: 08/09/2018 
Battery:   ID-1: BAT0 charge: 31.8 Wh condition: 31.8/42.0 Wh (76%) 
CPU:       Topology: Quad Core model: Intel Core i5-8250U bits: 64 type: MT MCP L2 cache: 6144 KiB 
           Speed: 1201 MHz min/max: 400/3400 MHz Core speeds (MHz): 1: 904 2: 865 3: 898 4: 850 5: 852 6: 845 7: 865 8: 804 
Graphics:  Device-1: Intel UHD Graphics 620 driver: i915 v: kernel 
           Display: x11 server: X.org 1.20.3 driver: modesetting resolution: <xdpyinfo missing> 
           Message: Unable to show advanced data. Required tool glxinfo missing. 
Audio:     Device-1: Intel Sunrise Point-LP HD Audio driver: snd_hda_intel 
           Sound Server: ALSA v: k4.20.12-arch1-1-ARCH 
Network:   Device-1: Intel Wireless 7265 driver: iwlwifi 
           IF: wlp1s0 state: up mac: <filter> 
Drives:    Local Storage: total: 238.47 GiB used: 56.24 GiB (23.6%) 
           ID-1: /dev/sda vendor: Micron model: 1100 SATA 256GB size: 238.47 GiB 
Partition: ID-1: / size: 38.37 GiB used: 20.16 GiB (52.5%) fs: ext4 dev: /dev/sda2 
           ID-2: /home size: 194.63 GiB used: 36.08 GiB (18.5%) fs: ext4 dev: /dev/sda3 
Sensors:   System Temperatures: cpu: 34.0 C mobo: 33.0 C sodimm: 33.0 C 
           Fan Speeds (RPM): cpu: 0 
Info:      Processes: 216 Uptime: 2h 22m Memory: 7.54 GiB used: 2.62 GiB (34.8%) Shell: bash inxi: 3.0.30

https://i.imgur.com/vIqltEeh.jpg

Last edited by ewon_c (2019-02-26 17:56:32)

jasonwryan · 2019-02-26 17:52:18

Read the Code of Conduct and only post thumbnails http://wiki.archlinux.org/index.php/Cod … s_and_code

robsco · 2019-04-23 06:38:21

This could be related to: https://forum.kde.org/viewtopic.php?f=309&t=160285

I ended up rolling back to a specific date as per: https://wiki.archlinux.org/index.php/Ar … cific_date
I settled on 2019/04/20. I have't attempted to look into which package caused the issue but I have functional Plasma global shortcuts for the time being.

arojas · 2019-04-23 07:00:04

robsco wrote:

This could be related to: https://forum.kde.org/viewtopic.php?f=309&t=160285

No it's not. That issue is a regression in KF 5.57 while this post is two months old.

robsco · 2019-04-23 07:34:11

arojas wrote:

robsco wrote:
This could be related to: https://forum.kde.org/viewtopic.php?f=309&t=160285
No it's not. That issue is a regression in KF 5.57 while this post is two months old.

Oh whoops, I misread the date of the initial post.

Arch Linux

#1 2019-02-26 17:50:56

[KDE Plasma] screen brightness can no longer be controlled by Fn key

#2 2019-02-26 17:52:18

Re: [KDE Plasma] screen brightness can no longer be controlled by Fn key

#3 2019-04-23 06:38:21

Re: [KDE Plasma] screen brightness can no longer be controlled by Fn key

#4 2019-04-23 07:00:04

Re: [KDE Plasma] screen brightness can no longer be controlled by Fn key

#5 2019-04-23 07:34:11

Re: [KDE Plasma] screen brightness can no longer be controlled by Fn key

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