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  1. #1
    Join Date
    Feb 2018

    Question ThinkPad Yoga 11e Touchpad not working

    Hi guys,

    Just installed F27 and my trackpad isn't working.
    Rebooting also doesn't work (shuts down and hangs on a blank screen).

    Everything else works fine (including the touch screen).

    I've tried logging in with X.org instead of Wayland with no change.

    any ideas? I've seen quite a few people with similar issues with Lenovo laptops but have yet to find a solution.

    System:    Host: yoga-11e.lan Kernel: 4.14.16-300.fc27.x86_64 x86_64
               bits: 64 gcc: 7.3.1
               Console: tty 0 Distro: Fedora release 27 (Twenty Seven)
    Machine:   Device: laptop System: LENOVO product: 20DAS02M00 v: ThinkPad Yoga 11e serial: <filter>
               Mobo: LENOVO model: Intel powered classmate PC v: SDK0E50519 PRO serial: <filter>
               UEFI: LENOVO v: N15ET68W (1.28) date: 10/17/2016
    Battery    BAT1: charge: 15.8 Wh 54.2% condition: 29.1/34.0 Wh (86%)
               model: SMP LNV-45N1751 status: Discharging
    CPU:       Quad core Intel Celeron N2930 (-MCP-) 
               arch: Silvermont rev.8 cache: 1024 KB
               flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 14660
               clock speeds: max: 2165 MHz 1: 907 MHz 2: 802 MHz 3: 1566 MHz
               4: 1586 MHz
    Memory:    Array-1 capacity: 8 GB devices: 1 EC: None
               Device-1: DIMM0 size: 4 GB speed: 1333 MT/s type: DDR3 part: N/A
    Graphics:  Card: Intel Atom Processor Z36xxx/Z37xxx Series Graphics & Display
               bus-ID: 00:02.0
               Display Server: X.org 1.19.6 driver: i915
               tty size: 80x24 Advanced Data: N/A for root
    Audio:     Card Intel Atom Processor Z36xxx/Z37xxx Series High Def. Audio Controller
               driver: snd_hda_intel bus-ID: 00:1b.0
               Sound: ALSA v: k4.14.16-300.fc27.x86_64
    Network:   Card-1: Intel Wireless 7260 driver: iwlwifi bus-ID: 04:00.0
               IF: wlp4s0 state: up mac: <filter>
               Card-2: Realtek RTL8111/8168/8411 PCIE Gigabit Ethernet Controller
               driver: r8169 v: 2.3LK-NAPI port: 1000 bus-ID: 05:00.0
               IF: enp5s0 state: down mac: <filter>
    Drives:    HDD Total Size: 128.0GB (8.6% used)
               ID-1: /dev/sda model: SAMSUNG_MZ7TE128 size: 128.0GB temp: 36C
    Partition: ID-1: / size: 49G used: 6.0G (13%) fs: ext4 dev: /dev/dm-0
               ID-2: /boot size: 976M used: 151M (17%) fs: ext4 dev: /dev/sda2
               ID-3: /home size: 63G used: 449M (1%) fs: ext4 dev: /dev/dm-2
               ID-4: swap-1 size: 4.16GB used: 0.00GB (0%)
               fs: swap dev: /dev/dm-1
    RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
    Sensors:   System Temperatures: cpu: 48.0C mobo: N/A
               Fan Speeds (in rpm): cpu: 0
    Info:      Processes: 266 Uptime: 51 min Memory: 2117.7/3827.5MB
               Init: systemd runlevel: 5 Gcc sys: N/A
               Client: Shell (bash 4.4.121) inxi: 2.3.56

  2. #2
    Join Date
    Apr 2014

    Re: ThinkPad Yoga 11e Touchpad not working

    I noticed this when doing a system-upgrade from 24 to 26 (dnf system-upgrade ...). I noticed that the FC26 initramfs also took about 30 seconds to detect I'm using luks and show the (plymouth?) graphical prompt for my LUKS password. This persisted across two later kernel updates to FC26.

    Fortunately my FC24 kernel was still in the grub list. I noted all of the problems disappeared when I booted with the FC24 kernel, to include the 3:3:3:1 beep code when shutting down or rebooting with the FC26 kernel.

    My short take away, the kernel has changed.

    I recently system-upgrade'd to FC27 thinking it might better and it's not. The Synaptics touch pad doesn't work and LUKS takes a long time to prompt for a password. The FC27 upgrade purged my FC24 kernel. That's bad news, but I was able to navigate with an external mouse and/or the touch screen to pull down an FC24 ISO, extract what I needed and re-run mkinitrd/grub2-mkconfig.

    Here's what I did.
    (1) downloaded an FC24 live image (chose LXDE since that spin was smallest).
    (2) used losetup to mount each filesystem: .ISO file contains SQUASHFS.IMG contains LIVE.IMG contains /boot directory.
    (3) copied all the *fc24* files from that nested boot directory to /boot.
    (4) re-ran mkinitrd
    (5) re-ran grub2-mkconfig

    And happiness was restored. For now. It's far from ideal. I don't know if there's any magic left in comparing the /boot/config-* versions to see if compiled options changed, or whether it had to do with the kernel marching forward and leaving the TP11e behind. Don't know at this point. I see there's a bug already filed, but no recent updates.

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