[WinBook TW102] Touch inputs not detected

[Will Ethridge]

touch inputs are not detected by Ubuntu on this tablet. I'm not sure the touch screen hardware is detected at all by Ubuntu. I tried cat /dev/input/eventX (replacing X with every option listed) and not once got any reaction to touching the screen.

I can provide more information and troubleshooting if asked, I just need to know what to look for.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
Uname: Linux 5.5.0-050500-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Fri Apr 24 13:27:45 2020
DistUpgraded: 2020-01-26 15:24:00,462 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py'
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller [8086:22b0] (rev 36) (prog-if 00 [VGA controller])
   Subsystem: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller [8086:7270]
InstallationDate: Installed on 2020-01-22 (92 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 005: ID 0603:0002 Novatek Microelectronics Corp.
 Bus 001 Device 004: ID 05e3:0608 Genesys Logic, Inc. Hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Lsusb-t:
 /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M
 /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/7p, 480M
     |__ Port 4: Dev 4, If 0, Class=Hub, Driver=hub/4p, 480M
         |__ Port 2: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
         |__ Port 2: Dev 5, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M
MachineType: MicroElectronics TW102
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.5.0-050500-generic root=UUID=20dd837f-ba9a-469c-bba4-45bb6e2370db ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to focal on 2020-01-26 (88 days ago)
dmi.bios.date: 03/22/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 8.17
dmi.board.asset.tag: Default string
dmi.board.name: H8811C
dmi.board.vendor: EMDOOR
dmi.board.version: 1.0
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 17
dmi.chassis.vendor: EMDOOR
dmi.chassis.version: 1
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr8.17:bd03/22/2018:svnMicroElectronics:pnTW102:pvr1:rvnEMDOOR:rnH8811C:rvr1.0:cvnEMDOOR:ct17:cvr1:
dmi.product.family: WinBook
dmi.product.name: TW102
dmi.product.sku: 585497
dmi.product.version: 1
dmi.sys.vendor: MicroElectronics
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.101-2
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.4-2ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

[Sebastien Bacher (seb128)]

Thank you for your bug report, could you give the output of

$ libinput-list-devices

and also add the 'journalctl -b 0' log from the machine having the issue?

[You-Sheng Yang (vicamo)]

[ 7.359634] silead_ts i2c-MSSL1680:00: Direct firmware load for silead/mssl1680.fw failed with error -2
[ 7.359647] silead_ts i2c-MSSL1680:00: Firmware request error -2

https://github.com/edward-p/mssl1680-firmware/blob/master/mssl1680.fw
Please try to save the firmware blob as /lib/firmware/KERNEL_VERIZON/silead/mssl1680.fw and reboot.

[Will Ethridge (gamerminstrel)]

I have attached a text file containing output from the libinput command. Journalctl coming next.

Also @vicamo, I have downloaded the firmware file you provided and placed it as you requested. After rebooting, there was no visible change in performance.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[You-Sheng Yang (vicamo)]

kernel: silead_ts i2c-MSSL1680:00: Direct firmware load for silead/mssl1680.fw failed with error -2
kernel: silead_ts i2c-MSSL1680:00: Firmware request error -2

Log in comment #5 says fw blob is not in position. What is the output of following command?

  $ ls- al /lib/firmware/$(uname -r)/silead/mssl1680.fw

[You-Sheng Yang (vicamo)]

Sorry, it's "ls -al".

[Will Ethridge (gamerminstrel)]

I apologize for the slow reply, a lot of stuff has been going on, and I hit a snag. The device in question no longer boots reliably. I have not been able to confirm, but I believe that the internal wifi chip is failing, and when the device loads the wifi driver in the boot process it crashes. If I cannot aid in troubleshooting, should we close this bug report or leave it open in the hopes someone else with this tablet will come along?