New LG Gram 17

Discussion in 'LG' started by vvb8890, Jan 16, 2019.

  1. bammitzb

    bammitzb Newbie

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    The 2 drives are different. The original one is a 256 GB M.2 SATA (slow interface) and the new one is a Samsung 970 EVO Plus Series 2TB PCIe M.2 NVMe which is faster since it interfaces via PCI Express (4 lanes in the LG Gram 17 slot 1).

    I will be installing linux (Gentoo) on the new 2 TB SSD - have not yet done so. The boot order for the drives can be changed in the BIOS, so I certainly expect to boot from the 2 TB drive once I get some linux on it. And in case I need win10 (not very likely) I can boot from the other drive (pressing F10 on startup gives you a boot menu where you can choose which drive to boot from).
     
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  2. Random42352

    Random42352 Notebook Guru

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    Thanks..i asked because a previous user had trouble booting the laptop with 2 different drives, if it works please let me know, thanks.
     
  3. Pflugshaupt

    Pflugshaupt Notebook Consultant

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    2 different drives works perfectly. I am using a samsung 970 evo+ and a intel 660p without any issues. The user with issues probably had a faulty laptop.
     
  4. bammitzb

    bammitzb Newbie

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    I now have Gentoo running on my LG Gram 17. I was unable to boot a Gentoo install CD and also failed to boot it from a USB stick. But I could boot linux Mint from a USB stick and I used that to set up partitioning and then copy over my existing Gentoo system from a backup hard drive. And I can still boot win10 from my 2nd SDD. Just disabled secure boot in the BIOS.

    There's a few things not working yet such as the touchpad and the webcam, but I guess I just need to enable the correct driver in the kernel. Also and some fn keys are not working - by the way I found this link for lg gram fn keys: https://www.kernel.org/doc/html/latest/admin-guide/laptops/lg-laptop.html.

    I also tried scaling KDE plasma to 1.2, but then I had some gfx artifacts (parts of gfx left on screen, flickering gfx square in ctrl+alt+f1 console). None of that without scaling.

    But I must agree with other posters here - thermal / cpu throttling is about the only thing about this laptop that I would like to see improved. The CPU hits 90 degrees Celsius real fast. But still super quiet even then.

    Has anybody found a way to enable keyboard backlight from boot, e.g. in BIOS? I can enable it via fn+f8, but I would like it to come on automatically.
     
  5. DanielNTX

    DanielNTX Notebook Consultant

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  6. bammitzb

    bammitzb Newbie

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    I compared my Gentoo kernel config with a kernel config from Linux mint (where the touchpad works) and after enabling a lot of i2c related stuff my touchpad now works also under Gentoo. These i2c modules are needed:

    lg_gram17 ~ # lsmod | grep i2c
    i2c_designware_platform 16384 0
    i2c_designware_core 20480 1 i2c_designware_platform
    i2c_i801 32768 0
    i2c_hid 24576 0

    lg_gram17 ~ # dmesg | grep i2c
    [ 16.381621] i2c_hid i2c-04CA00B1:00: i2c-04CA00B1:00 supply vdd not found, using dummy regulator
    [ 16.381633] i2c_hid i2c-04CA00B1:00: Linked as a consumer to regulator.0
    [ 16.381634] i2c_hid i2c-04CA00B1:00: i2c-04CA00B1:00 supply vddl not found, using dummy regulator
    [ 16.406307] input: 04CA00B1:00 04CA:00B1 Touchpad as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-8/i2c-04CA00B1:00/0018:04CA:00B1.0004/input/input20
    [ 16.406460] input: 04CA00B1:00 04CA:00B1 Mouse as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-8/i2c-04CA00B1:00/0018:04CA:00B1.0004/input/input21
    [ 16.406512] hid-generic 0018:04CA:00B1.0004: input,hidraw3: I2C HID v1.00 Mouse [04CA00B1:00 04CA:00B1] on i2c-04CA00B1:00
    [ 16.566802] input: 04CA00B1:00 04CA:00B1 Touchpad as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-8/i2c-04CA00B1:00/0018:04CA:00B1.0004/input/input22
    [ 16.567056] hid-multitouch 0018:04CA:00B1.0004: input,hidraw3: I2C HID v1.00 Mouse [04CA00B1:00 04CA:00B1] on i2c-04CA00B1:00


    And intel-lpss-pci for the PCI i2c controller:

    00:15.0 Serial bus controller [0c80]: Intel Corporation Cannon Point-LP Serial IO I2C Controller #0 (rev 30)
    Subsystem: LG Electronics, Inc. Cannon Point-LP Serial IO I2C Controller
    Flags: bus master, fast devsel, latency 0, IRQ 16
    Memory at 6023128000 (64-bit, non-prefetchable) [size=4K]
    Capabilities: [80] Power Management version 3
    Capabilities: [90] Vendor Specific Information: Len=14 <?>
    Kernel driver in use: intel-lpss
    Kernel modules: intel_lpss_pci


    I also have the webcam working, not sure what I did there...

    Regarding scaling I have set dpi to 120 (it would default to 96 which fits a 1920x1080 resolution):

    /etc/sddm.conf:ServerArguments=-nolisten tcp -dpi 120

    Fn keys not working: f1, f5, f7?, f9? but no major issue.

    Initially I was at 6-8W when on battery (full plasma KDE with firefox and thunderbird running), but after enabling stuff for the touchpad (probably also stuff that was not needed) I am a bit higher - 7-10W (around 700 wakeups per second). What are your numbers here? What is the best kernel config to get everything working and still use as low power as possible when on battery?
     
  7. gweempose

    gweempose Notebook Enthusiast

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    How are you guys cleaning your screens? Coming from a laptop with a glass screen, I'm afraid I might accidentally scratch or otherwise damage the screen on the Gram.
     
  8. hfm

    hfm Notebook Prophet

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  9. bsimon

    bsimon Notebook Enthusiast

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    hello, still very happy mit Gram 17 after half a year. I had some problems with
    19.10 Ubuntu and want to step back to 18.04 LTS. After a backup, I removed
    the linux partition and Grub.

    When I try to install 18.04 LTS (USB Stick Installation) I get only a short
    error massage

    Failed to open \EFI\BOOT\NULL - Not Found
    Failed to load image \EFI\BOOT\NULL: Not Found
    start ... image () returned Not Found

    an then a black screen. I think normally my Computer should look for
    "\EFI\BOOT\mmx64.efi" not Null. Does anyone know where NULL comes from?

    Thank you, Best Regards Simon
     
  10. Motoman17

    Motoman17 Newbie

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    USB-C charging?

    I was thinking about asking this for a while. When my laptop is off and I plug my USB-C 61W charger sometimes the charging light goes on but most of the time I need to plug and unplug it a few times to get it started.

    On the other hand when I turn the computer on it start charging right away and never experience any problems. I tried different cables and chargers but it's always the same story. So why is the thunderbolt port not waking up every time is a puzzle for me. Is there any trick behind that?
     
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