Dim display when idle

[S3by]

Hellow people .
I am running linux mint mate 20.3 and i have a problem .
In my power manager i have unchecked dim display when idle .
When i til the laptop screen it goes on suspend and when i push the screen up the screen appears with with lower brightness , iven if it's set to 50 % , the screen dim is so low , like 10 % , i hardly can see anithing , and i do not know how to avoid that .
Any help is apreciated . Thnx in advance !

image after laptop screen is closed and reopened

image before laptop screen is closed

[Cosmo.]

I don't use Mate, so this is only a guess:

In Cinnamon there is a setting, how the brightness shall get reduced in time of inactivity, and suspend is inactivity. Look around if there is a similar setting in Mate.

[S3by]

I cannot find anithink.
There is a terminal comand to permanently disable screen dimming ?

[ms4619]

Hi! I am having the same concern and would also like to be made aware of a terminal command to disable display dimming entirely. Regardless of power manager settings when I plug or unplug A/C, display goes very dim and must be manually re-adjusted. I'm also on 20.3 Una. Ciao!

[ms4619]

Hi! I am having the same concern and would also like to be made aware of a terminal command to disable display dimming entirely. Regardless of power manager settings when I plug or unplug A/C, display goes very dim and must be manually re-adjusted. I'm also on 20.3 Una. Ciao!

My concern seems to have randomly resolved and the Power Management settings "caught". Not following update or anything that I'm aware of, just a few restarts and today seems to be functioning properly. Latest substantive update I recall was a couple weeks ago to kernel 5.15. Machine = AMD Ryzen 7, Lenovo Yoga 6, Kernel 5.15.
Now if we could only get that accelerometer / screen rotation working : )

[ms4619]

Hi! I am having the same concern and would also like to be made aware of a terminal command to disable display dimming entirely. Regardless of power manager settings when I plug or unplug A/C, display goes very dim and must be manually re-adjusted. I'm also on 20.3 Una. Ciao!

My concern seems to have randomly resolved and the Power Management settings "caught". Not following update or anything that I'm aware of, just a few restarts and today seems to be functioning properly. Latest substantive update I recall was a couple weeks ago to kernel 5.15. Machine = AMD Ryzen 7, Lenovo Yoga 6, Kernel 5.15.
Now if we could only get that accelerometer / screen rotation working : )

Well I spoke too soon. Correct behavior was an exception. Power Management settings are being ignored, and I'm surprised more folks haven't encountered this. Can't find the .cfg file for power management either to check that. So, stuck with having to manually brighten up screen at plug / unplug

[SMG]

Well I spoke too soon. Correct behavior was an exception. Power Management settings are being ignored, and I'm surprised more folks haven't encountered this. Can't find the .cfg file for power management either to check that. So, stuck with having to manually brighten up screen at plug / unplug

You have not supplied any information about your install and how Mint views it, but are you running the most recent BIOS/UEFI version for your laptop?

Please give us information about your install by entering this command in a terminal:

Code: Select all

inxi -Fxxxrz

Click </> from the mini toolbar above the textbox where you type your reply and then place your cursor between the code tags and paste the results of the command between the code tags [code]Results[/code]. This will let us know how Mint sees your hardware.

[ms4619]

Thanks SMG (and for the posting format tip too). Yes, latest BIOS. Below is command output:

Code: Select all

System:
  Kernel: 5.15.0-33-generic x86_64 bits: 64 compiler: N/A 
  Desktop: MATE 1.26.0 info: mate-panel wm: marco 1.26.0 dm: LightDM 1.30.0 
  Distro: Linux Mint 20.3 Una base: Ubuntu 20.04 focal 
Machine:
  Type: Convertible System: LENOVO product: 82ND v: Yoga 6 13ALC6 
  serial: <filter> Chassis: type: 31 v: Yoga 6 13ALC6 serial: <filter> 
  Mobo: LENOVO model: LNVNB161216 v: SDK0T76463 WIN serial: <filter> 
  UEFI: LENOVO v: H6CN14WW(V1.07) date: 02/18/2022 
Battery:
  ID-1: BAT1 charge: 58.6 Wh condition: 60.0/60.0 Wh (100%) volts: 8.6/7.7 model: 0x53 
  0x75 0x6E 0x77 0x6F 0x64 0x 0x4C 0x31 0x39 0x44 0x34 0x50 0x6005 
  type: Li-ion serial: <filter> status: Unknown cycles: 6 
CPU:
  Topology: 8-Core model: AMD Ryzen 7 5700U with Radeon Graphics bits: 64 
  type: MT MCP arch: Zen rev: 1 L2 cache: 4096 KiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm 
  bogomips: 57493 
  Speed: 1460 MHz min/max: 1400/1800 MHz boost: enabled Core speeds (MHz): 
  1: 1549 2: 1422 3: 1397 4: 1397 5: 1397 6: 1396 7: 1397 8: 1397 9: 1306 
  10: 1391 11: 1380 12: 1298 13: 1397 14: 1306 15: 1397 16: 1397 
Graphics:
  Device-1: AMD vendor: Lenovo driver: amdgpu v: kernel bus ID: 03:00.0 
  chip ID: 1002:164c 
  Display: x11 server: X.Org 1.20.13 driver: amdgpu,ati 
  unloaded: fbdev,modesetting,vesa compositor: marco v: 1.26.0 
  resolution: 1920x1080~60Hz 
  OpenGL: renderer: AMD RENOIR (DRM 3.42.0 5.15.0-33-generic LLVM 12.0.0) 
  v: 4.6 Mesa 21.2.6 direct render: Yes 
Audio:
  Device-1: AMD vendor: Lenovo driver: snd_hda_intel v: kernel 
  bus ID: 03:00.1 chip ID: 1002:1637 
  Device-2: AMD Raven/Raven2/FireFlight/Renoir Audio Processor 
  vendor: Lenovo driver: snd_rn_pci_acp3x v: kernel bus ID: 03:00.5 
  chip ID: 1022:15e2 
  Device-3: AMD Family 17h HD Audio vendor: Lenovo driver: snd_hda_intel 
  v: kernel bus ID: 03:00.6 chip ID: 1022:15e3 
  Sound Server: ALSA v: k5.15.0-33-generic 
Network:
  Device-1: Realtek vendor: Lenovo driver: rtw89_pci v: kernel port: 2000 
  bus ID: 02:00.0 chip ID: 10ec:8852 
  IF: wlp2s0 state: up mac: <filter> 
Drives:
  Local Storage: total: 476.94 GiB used: 241.46 GiB (50.6%) 
  ID-1: /dev/nvme0n1 vendor: Western Digital 
  model: PC SN530 SDBPMPZ-512G-1101 size: 476.94 GiB speed: 31.6 Gb/s 
  lanes: 4 serial: <filter> rev: 21160001 scheme: GPT 
Partition:
  ID-1: / size: 132.02 GiB used: 21.90 GiB (16.6%) fs: ext4 
  dev: /dev/nvme0n1p5 
Sensors:
  System Temperatures: cpu: 42.0 C mobo: N/A gpu: amdgpu temp: 41 C 
  Fan Speeds (RPM): N/A 
Repos:
  No active apt repos in: /etc/apt/sources.list 
  Active apt repos in: /etc/apt/sources.list.d/amdgpu-proprietary.list 
  1: deb https://repo.radeon.com/amdgpu/21.50.2/ubuntu focal proprietary
  Active apt repos in: /etc/apt/sources.list.d/amdgpu.list 
  1: deb https://repo.radeon.com/amdgpu/21.50.2/ubuntu focal main
  Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
  1: deb http://packages.linuxmint.com una main upstream import backport #id:linuxmint_main
  2: deb http://archive.ubuntu.com/ubuntu focal main restricted universe multiverse
  3: deb http://archive.ubuntu.com/ubuntu focal-updates main restricted universe multiverse
  4: deb http://archive.ubuntu.com/ubuntu focal-backports main restricted universe multiverse
  5: deb http://security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
  6: deb http://archive.canonical.com/ubuntu/ focal partner
  Active apt repos in: /etc/apt/sources.list.d/rocm.list 
  1: deb [arch=amd64] https://repo.radeon.com/rocm/apt/5.0.2 ubuntu main
Info:
  Processes: 324 Uptime: 18m Memory: 14.97 GiB used: 1.25 GiB (8.4%) 
  Init: systemd v: 245 runlevel: 5 Compilers: gcc: 9.4.0 alt: 9 Shell: bash 
  v: 5.0.17 running in: mate-terminal inxi: 3.0.38 

Device required kernal 5.13 to function - present concern was extant immediately, recently updated to 5.15 with no change in behavior. I have the "amdgpu" PPA's, but the software is not installed.
If I manually set device brightness for a session after dimming, then battery / ac does not affect anything for the remainder of the session. However if I restart then problem reoccurs. I appreciate your time -

[SMG]

I have the "amdgpu" PPA's, but the software is not installed.

The "amdgpu" PPAs do not apply to your computer. Those drivers are for computers with discrete graphics. The graphics on your computer are an APU (integrated with the CPU) and are not discrete.

Were the images you posted screenshots or photographs?

Is the actual brightness value changing? For example, if it is at 50% before you suspend the computer, what is the value after resuming from suspend?

Are you dual-booting with Windows? If so, have you verified the problem is not happening on Windows? I ask that because I recall someone having an issue where the screen would dim and it ended up being a hardware issue. (They received a replacement laptop that worked correctly.)

If I manually set device brightness for a session after dimming, then battery / ac does not affect anything for the remainder of the session. However if I restart then problem reoccurs. I appreciate your time -

If the problem is not hardware related, then we would probably want to start checking logs to see if anything unusual is being recorded as happening when you suspend and then resume the computer from suspend.