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Thread: No Battery Detected on Toshiba laptop [11.04]

  1. #1
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    No Battery Detected on Toshiba laptop [11.04]

    I've installed 64-bit versions of Ubuntu 11.04 and Linux Mint 11 inside my Toshiba 655's Windows 7 partition and have been having problems with the battery. Last I checked on Linux Mint (uninstalled it to see if reinstalling would fix and cannot find the DVD at the moment) it said that no battery was detected. I can't even find anything in Ubuntu. It still runs but I have no clue how much time or charge I have left, which is a pain because I spend most of the day off of the AC cord. It also runs pretty hot but I will worry about that later, but it might be related.



    I would prefer not to rely on Windows 7 just because it is easier when I prefer Linux. I am not very proficient with Linux and have no clue how to deal with this at all, so sorry in advance to anyone who doesn't like holding people's hand through everything. Thanks for any help.

  2. #2
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    Re: No Battery Detected on Toshiba laptop [11.04]

    Hi

    I might have to continue this tomorrow as it's late here (unless someone else jumps in). However in the meantime.

    Open a terminal and type

    Code:
    ls /sys/class/power_supply/
    See if your battery is listed there. Here is mine.....
    Code:
    matthew@matthew-laptop:~$ ls /sys/class/power_supply/
    ADP1/ BAT0/ 
    matthew@matthew-laptop:~$
    My battery is BAT0. If you have a battery (it may be named differently) navigate into that directory.

    Again, this is mine.

    Code:
    matthew@matthew-laptop:~$ ls /sys/class/power_supply/BAT0/
    alarm               charge_full_design  current_now         manufacturer        power/              serial_number       subsystem/          type                voltage_min_design
    charge_full         charge_now          device/             model_name          present             status              technology          uevent              voltage_now
    matthew@matthew-laptop:~$
    Look for something along the lines of

    Code:
    matthew@matthew-laptop:~$ ls /sys/class/power_supply/BAT0/charge_now 
    /sys/class/power_supply/BAT0/charge_now
    matthew@matthew-laptop:~$ cat /sys/class/power_supply/BAT0/charge_now 
    3194000
    matthew@matthew-laptop:~$ cat /sys/class/power_supply/BAT0/charge_full
    3194000
    matthew@matthew-laptop:~$
    Do you have something similar ? If do do it will eliminate part of your system. Post your results back here.

    Kind regards
    If you believe everything you read, you better not read. ~ Japanese Proverb

    If you don't read the newspaper, you're uninformed. If you read the newspaper, you're mis-informed. - Mark Twain

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  3. #3
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    Re: No Battery Detected on Toshiba laptop [11.04]

    Code:
    chris@ubuntu:~$ ls /sys/class/power_supply/
    ACAD
    chris@ubuntu:~$ ls /sys/class/power_supply/ACAD
    device  online  power  subsystem  type  uevent
    chris@ubuntu:~$ ls /sys/class/power_supply/ACAD/type
    /sys/class/power_supply/ACAD/type
    chris@ubuntu:~$ ls /sys/class/power_supply/ACAD/power
    autosuspend_delay_ms    wakeup               wakeup_last_time_ms
    control                 wakeup_active        wakeup_max_time_ms
    runtime_active_time     wakeup_active_count  wakeup_total_time_ms
    runtime_status          wakeup_count
    runtime_suspended_time  wakeup_hit_count
    chris@ubuntu:~$ ls /sys/class/power_supply/ACAD/device/driver
    ACPI0003:00  bind  uevent  unbind
    chris@ubuntu:~$ ls /sys/class/power_supply/ACAD/charge_now
    ls: cannot access /sys/class/power_supply/ACAD/charge_now: No such file or directory
    It isn't showing the same code as in your example so I played around in the terminal a bit and posted what I found. Tell me if you need me to go into anything else, please ask and I'll get back asap. Thank you so much for helping, Matt.
    Last edited by Gelegenheit; September 30th, 2011 at 03:10 AM.

  4. #4
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    Re: No Battery Detected on Toshiba laptop [11.04]

    Hi

    I've installed 64-bit versions of Ubuntu 11.04 and Linux Mint 11 inside my Toshiba 655's Windows 7 partition
    This is a WUBI install ?

    As far as i can tell, your battery is not being recognised. I think ACAD is your power adaptor (but i am not 100% sure as i have never owned a Toshiba 655). You do not have an entry for a battery. This would mean the issue is in a lower part of the operating system; maybe an ACPI issue.

    Can you run from a LiveCD/USB and check to see if the battery is recognised from there. That would help to eliminate/implicate a WUBI issue.

    Kind regards
    If you believe everything you read, you better not read. ~ Japanese Proverb

    If you don't read the newspaper, you're uninformed. If you read the newspaper, you're mis-informed. - Mark Twain

    Thinking about becoming an Ubuntu Member?

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    Re: No Battery Detected on Toshiba laptop [11.04]


  6. #6
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    Re: No Battery Detected on Toshiba laptop [11.04]

    Hi

    Cheers for this. A custom dsdt ? Year of the Linux desktop ? As much as i love Linux ....

    Kind regards
    Last edited by matt_symes; October 1st, 2011 at 08:10 AM.
    If you believe everything you read, you better not read. ~ Japanese Proverb

    If you don't read the newspaper, you're uninformed. If you read the newspaper, you're mis-informed. - Mark Twain

    Thinking about becoming an Ubuntu Member?

  7. #7
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    Re: No Battery Detected on Toshiba laptop [11.04]

    Should I try seeing if Ubuntu Netbook works or if I should try modifying the kernel (That will require help). From what I understand, Toshiba does something differently with their laptops (like a different hardware format or something).

    I'm not averse to using Windows 7 while not on the AC. I just find it a little frustrating that I have to use Linux based on what my power situation is rather than the job I need to do.
    Last edited by Gelegenheit; October 1st, 2011 at 08:12 PM.

  8. #8
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    Re: No Battery Detected on Toshiba laptop [11.04]

    There is no Ubuntu-netbook in 11.04. The fact that wubi offers it is a bug.

    In any case, the problem you are having is not likely to be different between 'flavours'.

    So... I agree with matt_symes that the whole dsdt thing is overkill. I've read in those threads that the battery is working - just there is no indicator shown. However it's been reported that the battery light turns red when it is low - so it is still functioning normally - and you get a warning if it's low.

    Also, there is release 11.10 coming out in a couple of weeks. You could try that.

    My advice is:
    1. make sure your bios is up to date. This might make a difference.
    2. try to make contact with other people who are using Ubuntu with this netbook (post on the threads as they are likely subscribed). That way you'll hear if they've found a simpler workaround.
    3. create or subscribe to the bugs so you get updates.
    4. try Ubuntu by creating a bootable USB - so you can see whether the problem is fixed before installing. There're 3 active releases: 10.04, 10.10 and 11.04 - and soon 11.10 - that may have different results.

    Good luck

  9. #9
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    Re: No Battery Detected on Toshiba laptop [11.04]

    I realize it has been a while but the release of Linux Mint 12 and the realization of how little I use Windows 7 native applications when at school (Most often use Firefox, Thunderbird, and a port of Tomboy Notes) made me miss Linux and redouble my efforts to solve the mystery of the missing battery.

    During my quest, I came across two links that seem to explain and fix the problem but most of it is utter gibberish to me.
    http://techinterplay.com/fix-toshiba...sue-linux.html
    http://blog.michael.kuron-germany.de...t-recompiling/

    Unless someone can tell me a better way that doesn't leave me going "Umm...", I've opted to see if I can get the patch by the author of the TECHINTERPLAY article to work on my Linux Mint inside Windows partition. But, before I start this, I must ask if this will, in any way, affect my Windows partition. I would rather know that modifying DSDTs is perfectly safe and won't turn an annoyance into Armageddon (backup in progress) if I do this wrong before I start doing it.

    Many thanks.

  10. #10
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    Re: No Battery Detected on Toshiba laptop [11.04]

    The patch works. Not sure I'm happy to see how quickly my battery drains on Linux, though.

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