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[HowTo] Alternate way of saving battery when using 4G/LTE

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    • A Offline
      AmauryDBZ @lduboeuf
      last edited by AmauryDBZ 15 Sept 2023, 06:10

      @lduboeuf thanks for your 'dirty hack' !
      after installing it says I have to upgrade, but sudo apt upgrade returns

      Lecture des listes de paquets... Fait            
      Construction de l'arbre des dépendances          
      Lecture des informations d'état... Fait          
      Calcul de la mise à jour... Fait                 
      Get more security updates through Ubuntu Pro with 'esm-apps' enabled:                             
        libswresample3 libmediainfo0v5 libavcodec58 libavutil56 libopenexr24                            
        libsdl2-2.0-0                                  
      Learn more about Ubuntu Pro at https://ubuntu.com/pro                                             
      W: Verrou non utilisé pour le fichier /var/lib/dpkg/lock-frontend en lecture seule                
      W: Verrou non utilisé pour le fichier /var/lib/dpkg/lock en lecture seule                         
      E: Le répertoire d'archive /var/cache/apt/archives/partial n'existe pas. - Acquire (30: Read-only file system)
      

      Any idea how to resolve ?
      Moreover, is it possible to add an exception when hotspot is on ?

      L 1 Reply Last reply 15 Sept 2023, 07:16 Reply Quote 0
      • L Offline
        lduboeuf @AmauryDBZ
        last edited by 15 Sept 2023, 07:16

        @AmauryDBZ said in [HowTo] Alternate way of saving battery when using 4G/LTE:

        @lduboeuf thanks for your 'dirty hack' !
        after installing it says I have to upgrade, but sudo apt upgrade returns

        Lecture des listes de paquets... Fait            
        Construction de l'arbre des dépendances          
        Lecture des informations d'état... Fait          
        Calcul de la mise à jour... Fait                 
        Get more security updates through Ubuntu Pro with 'esm-apps' enabled:                             
          libswresample3 libmediainfo0v5 libavcodec58 libavutil56 libopenexr24                            
          libsdl2-2.0-0                                  
        Learn more about Ubuntu Pro at https://ubuntu.com/pro                                             
        W: Verrou non utilisé pour le fichier /var/lib/dpkg/lock-frontend en lecture seule                
        W: Verrou non utilisé pour le fichier /var/lib/dpkg/lock en lecture seule                         
        E: Le répertoire d'archive /var/cache/apt/archives/partial n'existe pas. - Acquire (30: Read-only file system)
        

        Any idea how to resolve ?
        Moreover, is it possible to add an exception when hotspot is on ?

        Well, your device must be up to date before doing any ubports-qa things.
        You can either reinstall UT or go by mouting rw the partition and then upgrade.

        A 1 Reply Last reply 15 Sept 2023, 07:27 Reply Quote 0
        • A Offline
          AmauryDBZ @lduboeuf
          last edited by 15 Sept 2023, 07:27

          @lduboeuf said in [HowTo] Alternate way of saving battery when using 4G/LTE:

          by mouting rw the partition and then upgrade.

          do you have a tutorial ?

          L 1 Reply Last reply 15 Sept 2023, 08:02 Reply Quote 0
          • L Offline
            lduboeuf @AmauryDBZ
            last edited by 15 Sept 2023, 08:02

            @AmauryDBZ said in [HowTo] Alternate way of saving battery when using 4G/LTE:

            @lduboeuf said in [HowTo] Alternate way of saving battery when using 4G/LTE:

            by mouting rw the partition and then upgrade.

            do you have a tutorial ?

            Well, if you ask, maybe you don't know the possible consequences ?
            If ok then remount rw the partition: sudo mount -o remount,rw /
            then sudo apt upgrade

            A 1 Reply Last reply 15 Sept 2023, 09:21 Reply Quote 0
            • A Offline
              AmauryDBZ @lduboeuf
              last edited by 15 Sept 2023, 09:21

              @lduboeuf you're right I have no idea of what consequence it could have ! Thanks for your help !

              To come back on the subject of this topic, would it be possible to add an exception when the hotspot is activated ?

              L 1 Reply Last reply 15 Sept 2023, 09:35 Reply Quote 0
              • L Offline
                lduboeuf @AmauryDBZ
                last edited by 15 Sept 2023, 09:35

                @AmauryDBZ said in [HowTo] Alternate way of saving battery when using 4G/LTE:

                @lduboeuf you're right I have no idea of what consequence it could have ! Thanks for your help !

                To come back on the subject of this topic, would it be possible to add an exception when the hotspot is activated ?

                Humm, what would be the bahavior for hotspot, if enable then auto switch to 4G ?

                A 1 Reply Last reply 15 Sept 2023, 09:43 Reply Quote 0
                • A Offline
                  AmauryDBZ @lduboeuf
                  last edited by 15 Sept 2023, 09:43

                  @lduboeuf I would have say if enable stay on 4G even if the screen shutsdown, but that's the idea.

                  L 1 Reply Last reply 15 Sept 2023, 10:34 Reply Quote 0
                  • L Offline
                    lduboeuf @AmauryDBZ
                    last edited by 15 Sept 2023, 10:34

                    @AmauryDBZ said in [HowTo] Alternate way of saving battery when using 4G/LTE:

                    @lduboeuf I would have say if enable stay on 4G even if the screen shutsdown, but that's the idea.

                    ah ok but might not be related to my work around. It only toggles on 4G when request data and toggle 2G when data off.

                    A 1 Reply Last reply 17 Sept 2023, 12:19 Reply Quote 0
                    • A Offline
                      AmauryDBZ @lduboeuf
                      last edited by 17 Sept 2023, 12:19

                      @lduboeuf sorry I didn't understand that the behavior of your hack was different from @lkroll's.

                      1 Reply Last reply Reply Quote 0
                      • A Offline
                        AmauryDBZ @lkroll
                        last edited by 19 Sept 2023, 14:47

                        @lkroll Thanks a lot for your script, works like a charm !
                        As I said to @lduboeuf , I was wondering if it could be possible to add some exceptions ?
                        For instance, 4G could be maintained when the device is charging, or when hotspot activated, or even when an specific app is running (Futify for me).

                        L 1 Reply Last reply 19 Sept 2023, 15:04 Reply Quote 1
                        • L Offline
                          lduboeuf @AmauryDBZ
                          last edited by 19 Sept 2023, 15:04

                          @AmauryDBZ said in [HowTo] Alternate way of saving battery when using 4G/LTE:

                          @lkroll Thanks a lot for your script, works like a charm !
                          As I said to @lduboeuf , I was wondering if it could be possible to add some exceptions ?
                          For instance, 4G could be maintained when the device is charging, or when hotspot activated, or even when an specific app is running (Futify for me).

                          Of course it should be possible but takes time. But would be better to look at the root cause, why LTE need so much battery. There are room for improvement, e.g we still don't manage the FastDormancy.

                          A 1 Reply Last reply 19 Sept 2023, 21:56 Reply Quote 0
                          • A Offline
                            AmauryDBZ @lduboeuf
                            last edited by AmauryDBZ 19 Sept 2023, 21:56

                            @lduboeuf I didn't knew about FastDormancy, make sense to priorise it.
                            Thank you for your answers and patience

                            1 Reply Last reply Reply Quote 0
                            • L Offline
                              lduboeuf
                              last edited by lduboeuf 27 Sept 2023, 16:09

                              Hi all,
                              [20.04 only]
                              I've made an app to allow to auto toggle LTE (4G) when cellular data is requested, and back to GSM (2G) when no data.

                              If anyone interested:
                              https://gitlab.com/lduboeuf/battery-saver/-/artifacts

                              source code:
                              https://gitlab.com/lduboeuf/battery-saver

                              the app can be closed after clicking "start" and if you see "Running...", it will create a background service

                              Edit: don't know if it is related but connectivity tends to have issue on upgrading to 4G. Or maybe only an indicator issue.

                              KenedaK 1 Reply Last reply 27 Sept 2023, 19:44 Reply Quote 4
                              • KenedaK Offline
                                Keneda @lduboeuf
                                last edited by 27 Sept 2023, 19:44

                                @lduboeuf

                                Would you release it on openstore ?
                                Is this for Xenial or Focal, or both ?

                                2015-2023 : Meizu MX4 ☠️⚰️✝️
                                2023-2024 : Nexus 5 ☠️⚰️✝️
                                2024-***** : FPOS Fairphone 5 waiting UT for freedom 😉
                                🇲🇫🇬🇧

                                L 1 Reply Last reply 27 Sept 2023, 20:01 Reply Quote 0
                                • L Offline
                                  lduboeuf @Keneda
                                  last edited by 27 Sept 2023, 20:01

                                  @Keneda said in [HowTo] Alternate way of saving battery when using 4G/LTE:

                                  @lduboeuf

                                  Would you release it on openstore ?

                                  Maybe in the future, the ideal would be to have it integrated, but much much work involved + the fact that upcoming volTE will probably conflict with.

                                  Is this for Xenial or Focal, or both ?

                                  Focal only, only 24h a day 🙂

                                  1 Reply Last reply Reply Quote 0
                                  • E Eric H referenced this topic on 26 Nov 2023, 01:32
                                  • D Offline
                                    domubpkm
                                    last edited by 16 Dec 2023, 14:41

                                    Hello @lduboeuf . When i saw https://open-store.io/app/batterysaver.lduboeuf , i thought first it was a GUI of this topic. Or could your app evolve towards this?

                                    L 1 Reply Last reply 16 Dec 2023, 16:39 Reply Quote 0
                                    • L Offline
                                      lduboeuf @domubpkm
                                      last edited by 16 Dec 2023, 16:39

                                      @domubpkm said in [HowTo] Alternate way of saving battery when using 4G/LTE:

                                      Hello @lduboeuf . When i saw https://open-store.io/app/batterysaver.lduboeuf , i thought first it was a GUI of this topic. Or could your app evolve towards this?

                                      A bit different yes than always switching 2g/4g according tp screen state. But if i have 100 notif a day, it means 100 times the screen will turn on, i doubt it would be efficient...
                                      But could be improved for sure

                                      D 1 Reply Last reply 16 Dec 2023, 21:51 Reply Quote 1
                                      • D Offline
                                        domubpkm @lduboeuf
                                        last edited by 16 Dec 2023, 21:51

                                        @lduboeuf Thanks for your new project. Well personally, in normal use, I generally completely turn off cellular data and activate it when necessary. I don't know how difficult it can be to develop, but I imagine an option that automatically turns on cellular data in case of one or more open apps or web-apps using it, and automatically turns off cellular data when apps or web-apps that used cellular data are all closed...

                                        1 Reply Last reply Reply Quote 0
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