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Thread: 15 - What has been your experience of laptop battery life - is suspend acually a thing?

  1. #1

    Default 15 - What has been your experience of laptop battery life - is suspend acually a thing?

    Hi there,

    I have a problem with the battery life.
    Laptop now gets very hot with use, hotter than it ever used to with 42.x.
    I can leave the laptop fully charged having being closed for hours (and cool to the touch), and find it entirely discharged after five hours.


    Two characteristics:
    Power seems to drain faster in use - web-browsing can see the battery drop 50% in an hour.
    Laptop does not seem to suspend properly - at least that is my presumption from dead batteries after several hours from full.

    Context:
    This laptop is a 2012 era Samsung Series 9 ultrabook with an Ivybridge 17W dual-core.
    Despite its age, I could still expect four hours of light usage out of it under 42.x (fairly intensive web-browsing, mainly text, virtually no streaming of any kind).

    Details:
    Wifi signal strength isn't perfect from where it is used, but it is definately not marginal - or even low.

    Any thoughts?

  2. #2
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    Default Re: 15 - What has been your experience of laptop battery life - is suspend acually a thing?

    These are hardware-specific issues, so some further investigation will be needed to help tune power management. These references could be useful here...
    https://doc.opensuse.org/documentati...ower-mgmt.html
    https://doc.opensuse.org/documentati...ower-mgmt.html

    Your graphics hardware details are likely also relevant...
    Code:
    /usr/sbin/hwinfo --gfxcard
    openSUSE Leap 15.3; KDE Plasma 5

  3. #3

    Default Re: 15 - What has been your experience of laptop battery life - is suspend acually a thing?

    i had a look in the power management settings and all looks as it should.

    ---@---:~> /usr/sbin/hwinfo --gfxcard
    11: PCI 02.0: 0300 VGA compatible controller (VGA)
    [Created at pci.378]
    Unique ID: _Znp.vD6EreSNzdB
    SysFS ID: /devices/pci0000:00/0000:00:02.0
    SysFS BusID: 0000:00:02.0
    Hardware Class: graphics card
    Model: "Intel 3rd Gen Core processor Graphics Controller"
    Vendor: pci 0x8086 "Intel Corporation"
    Device: pci 0x0166 "3rd Gen Core processor Graphics Controller"
    SubVendor: pci 0x144d "Samsung Electronics Co Ltd"
    SubDevice: pci 0xc0d3
    Revision: 0x09
    Driver: "i915"
    Driver Modules: "i915"
    Memory Range: 0xf0000000-0xf03fffff (rw,non-prefetchable)
    Memory Range: 0xe0000000-0xefffffff (ro,non-prefetchable)
    I/O Ports: 0x3000-0x303f (rw)
    Memory Range: 0x000c0000-0x000dffff (rw,non-prefetchable,disabled)
    IRQ: 25 (52562 events)
    I/O Port: 0x00 (rw)
    Module Alias: "pci:v00008086d00000166sv0000144Dsd0000C0D3bc03sc00i00"
    Driver Info #0:
    Driver Status: i915 is active
    Driver Activation Cmd: "modprobe i915"
    Config Status: cfg=new, avail=yes, need=no, active=unknown

    Primary display adapter: #11

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