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Minimum display drightness too bright in dark conditions

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    • U Offline
      ubuntoutou
      last edited by 23 May 2020, 22:07

      I lower the display brightness to its minimum when in the dark but I find this minimum a bit too high. In the dark, the brightness is a bit blinding. How would it be possible to alter this minimum?

      1 Reply Last reply Reply Quote 1
      • G Offline
        Giiba
        last edited by 24 May 2020, 04:21

        I agree. But I think it is a hardware limitation, not one under a user or programmer's control.

        1 Reply Last reply Reply Quote 0
        • A Offline
          arubislander
          last edited by 24 May 2020, 08:53

          At least for the BQ M10 it is not a hardware limitation, but a choice when the image was built. Minimum brightness was set to around 10% of maximum. You can set it lower, but it is clunky, and I am not sure if the procedure is the same for each device.

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          • H Offline
            hankschwie
            last edited by 24 May 2020, 13:35

            Hi!

            You could try another theme, like suru dark; UT Tweak Tool is your friend...

            U 1 Reply Last reply 24 May 2020, 20:39 Reply Quote 0
            • U Offline
              ubuntoutou @hankschwie
              last edited by 24 May 2020, 20:39

              @hankschwie

              UT Tweak Tool themes have no effect on the brightness of apps.

              H 1 Reply Last reply 25 May 2020, 05:42 Reply Quote 1
              • F Offline
                Fla
                last edited by 24 May 2020, 20:59

                You can manually change the minimum brightness you want in /usr/share/repowerd/device-configs/ picking the file of your device. To do that, you need to mount the filesystem in write mode with sudo mount -o remount,rw /.

                U 1 Reply Last reply 24 May 2020, 22:40 Reply Quote 0
                • U Offline
                  ubuntoutou @Fla
                  last edited by ubuntoutou 24 May 2020, 22:40

                  @Fla

                  Thanks Fla. I have edited the file config-default.xml and changed the line

                   <integer name="config_screenBrightnessSettingMinimum">10</integer>
                  

                  to

                   <integer name="config_screenBrightnessSettingMinimum">1</integer>
                  

                  and rebooted the device.

                  But the minimum brightness remains the same. Have I missed something? Do I need to run some kind of init command to enable the change?

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                  • H Offline
                    hankschwie @ubuntoutou
                    last edited by hankschwie 25 May 2020, 05:42

                    @ubuntoutou
                    Yes, you're right. But IMHO at least the overall appearance of white text on black background is less bright then vice versa.

                    U 1 Reply Last reply 25 May 2020, 18:12 Reply Quote 0
                    • U Offline
                      ubuntoutou @hankschwie
                      last edited by 25 May 2020, 18:12

                      @hankschwie

                      White text on black background is only for the system, not for apps like the web browser.

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                      • H Offline
                        hankschwie
                        last edited by hankschwie 25 May 2020, 18:46

                        Well, I'd say it works for most of the apps: Dekko2, Filemanager, OpenStore, UTTT, OSM Scout server, Contacts, Notes, Weather uMPD, calculator etc. etc... Even Morph has a dark frame... In others you can switch the layout - Sturm Reader, EpubViewer, Document Viewer, Writer...

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