Announcement

Collapse
No announcement yet.

The Nasty Battery Power Usage On Ubuntu 11.10

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • #16
    of course Michael is going to post consumer issues about ubuntu. Isn't that the distro he uses?

    also is the most widely used distro and many are based on it so they'll have the same problem.

    Or maybe you want him to post issues with Slackware and get like 2 views? Who uses that?
    It's may be the distro he uses. Even then it would be good to now if it depends on the gui or not.
    So at least a comparaisson gnome/unity would be nice to assure that its not an effect of the gui.
    Since the 10.4LTS uses gnome not unity.
    That would also help the people working on the different projects to now if that's a bug in their Software.

    also is the most widely used distro and many are based on it so they'll have the same problem.
    Wouldn't be sure this is right, most people i now doesn't use Ubuntu since they think it is crap, the last one changed with 11.4. I think many people did the same and Ubuntu lost lots of market share in Jun/July. Up to 1/3 lost according to some market share analysis websites.
    And the most people wouldn't be affected if the problem lies in the Ubuntu kernel config and unity.

    Comment


    • #17
      Originally posted by liam View Post
      Is that with the backlight on? If so, that is pretty damn good. Close to what I would expect windows to have.

      Sorry for the lag, tha backlight is at 25%
      If interested here are two scripts i use; the first is for powersave, the second is for full performance.
      acpi daemon switch between them when connected to the line.

      I can't say if windows 7 can reach that values; sure xp should last 10.5hours according to asus specs.
      But i can reach (idling all the time) even 10.9..11 hours, for what matters


      Code:
      #!/bin/bash
      
      
      #unplugged
      
      #brightness
      	sudo sh -c "echo 4 > /sys/class/backlight/acpi_video0/brightness"
      
      #cpufreq
              sudo cpufreq-set -c 0 -g conservative
              sudo cpufreq-set -c 1 -g conservative
      
      #eee-she powersave
              sudo eee-she -ps
      
      #standby del disco dopo 10 minuti di inattivitą
              sudo /sbin/hdparm -S120 /dev/sda
      
      #scheda video a 200Mhz
              sudo /usr/local/bin/gmaboost.sh 200
      
      
      #Abilita dpms e screensaver
              sudo -u kokonicki xset +dpms
              sudo -u kokonicki xset s on
      
      	sudo sh -c "echo 5 >/proc/sys/vm/laptop_mode"
      
              sudo /usr/sbin/ethtool -s eth0 wol d
      
              sudo sh -c "echo min_power > /sys/class/scsi_host/host0/link_power_management_policy"
              sudo sh -c "echo min_power > /sys/class/scsi_host/host1/link_power_management_policy"
              sudo sh -c "echo min_power > /sys/class/scsi_host/host2/link_power_management_policy"
              sudo sh -c "echo min_power > /sys/class/scsi_host/host3/link_power_management_policy"
      	sudo sh -c "echo 1500 > /proc/sys/vm/dirty_writeback_centisecs"
      
      #watchdog serve a geenrara dump in caso di crash, ma lo disabilito:
              sudo sh -c "echo 0 > /proc/sys/kernel/watchdog"
              sudo sh -c "echo 1 > /sys/module/snd_hda_intel/parameters/power_save"
              sudo sh -c "echo 1 > /sys/devices/system/cpu/sched_smt_power_savings"
              for i in /sys/bus/usb/devices/*/power/autosuspend; do sudo sh -c "echo 1 > $i"; done
              for i in /sys/bus/pci/devices/*/power/control; do sudo sh -c "echo auto > $i"; done
      
      #Setta powersave su wlan0 (pacman -S iw)
      	sudo iw wlan0 set power_save on
      Code:
      #!/bin/bash
      
      #ScreenBrightness
      #	xbacklight -set 100
      	#sudo sh -c "echo 15 > /sys/devices/virtual/backlight/acpi_video0/brightness"
      	sudo sh -c "echo 15 > /sys/class/backlight/acpi_video0/brightness"
      
      #cpufreq
      	sudo cpufreq-set -c 0 -g performance
      	sudo cpufreq-set -c 1 -g performance
      #eee-she performance
      	sudo eee-she -p
      
      #standby del disco a 2ore 30min. (valori grandi sono da 241 a 251)
              sudo /sbin/hdparm -S245 /dev/sda
      
      #Composite
      #	sleep 5
      #	/usr/local/bin/KwinCompositeOn.sh
      
      #Disabilita dpms e screensaver
      	sudo -u kokonicki xset -dpms
      	sudo -u kokonicki xset s off
      
      #scheda video a 400Mhz
      	sudo /usr/local/bin/gmaboost.sh 400
      
      #riabilito watchdog
      	sudo sh -c "echo 1 > /proc/sys/kernel/watchdog"


      Ah, on my model there s a bug in the kernel on audio side; muting and unmuting the audio card saves an extra 0.4W (?!)
      I switch manually until i write something to do via scripting:
      amixer set Master mute
      amixer set Master unmute

      --
      edit

      just append this to the first script should work:
      Code:
      mute=$(amixer get Master|grep "\[off\]")
      
      if [[ "$mute" ]]; then
              amixer set Master mute
              sleep 0.01
              amixer set Master unmute
              sleep 0.01
              amixer set Master mute
        else
              amixer set Master unmute
              sleep 0.01
              amixer set Master mute
              sleep 0.01
              amixer set Master unmute
      fi
      Last edited by kokoko3k; 09-14-2011, 12:48 PM.

      Comment


      • #18
        Originally posted by another_sam View Post
        man, this is sad. with 11.04 the battery already evaporates in 2.5 hours even if you don't touch the laptop. with windows 7 I guess it can last for more than 5 hours.

        the incredible thing is that kernel developers must be suffering this pain themselves, and they should rush to fix this, but, kernel versions and months pass, and the bug persists.
        Last time Phoronix did a benchmark Ubuntu was on pair with Win7.

        Comment


        • #19
          Ha ha ha

          And the ugly yet UNTRACED for over a year random freezes of Ubuntu and derivatives. I bet everyone is saying sorry to Squeeze now. He he he. Fix fonts in Debian like this:



          The rumors are true. Installing Iceweasel 5 from http://mozilla.debian.net/ solves three problems that have plagued lots of Linux users:

          1.Obsolete Iceweasel/Firefox.
          2.Ugly font rendering with official Firefox binaries.
          3.Ugly font rendering everywhere on the system.

          You heard it right, folks. Installing Iceweasel 5 in Squeeze brings in a version of libcairo2

          So do this:

          Add the following entry to /etc/apt/sources.list or a new file in /etc/apt/sources.list.d/:
          deb http://mozilla.debian.net/ squeeze-backports iceweasel-release
          Add the archive key to your apt keyring:
          # wget -O- -q http://mozilla.debian.net/archive.asc | gpg --import
          Import it into the APT keyring:
          # gpg --export -a 06C4AE2A | sudo apt-key add -
          Update the repository database:
          # apt-get update
          Install Iceweasel 5 with the following command:
          # apt-get install -t squeeze-backports iceweasel

          If font still ugly add to the ~/.fonts.conf a file posted here:

          http://pastebin.com/yeqkrLxX

          and you're done.

          For broadcom wifi use debian wiki.

          Ha ha ubuntu shmoontu. Suck my ... Canonical.

          http://pastebin.com/yeqkrLxX

          and you're done.

          For broadcom wifi use debian wiki.

          Ha ha ubuntu shmoontu.

          Comment


          • #20
            Just tested my Llano laptop, usually holds around 4 hours in Windows 7 with the occasional Youtube video running, about 2 hours in Ubuntu.

            Comment

            Working...
            X