Toshiba Portege Z20t - ArchWiki

# Toshiba Portege Z20t

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Reason: Stub (Discuss in Talk:Toshiba Portege Z20t#)

The power of an enterprise-class laptop. The freedom and convenience of a tablet. Why choose when you can get the best of both? The Toshiba Portégé® Z20t Ultrabook® offers innovative 2-in-1 versatility in a supremely crafted chassis, along with outstanding battery life and an exceptional handwriting experience.

## Specifications

Name | Series Toshiba Portege Z20t
Processor | Intel Core M-5Y71
Screen | 12.5" Touchscreen
RAM | 4-8-16GB
HDD | Toshiba SDD (256 [MZNTE256HMHP], 256, 512 GB)
Optical Drive | none
Graphics | Intel® HD Graphics 5300 (Broadwell GT2)
Network | Ethernet - Intel I218-LM, Wifi - Intel Wireless 7265
Touchpad | ALPS (Trackstick+Mousepad)
Fingerprint reader | none
Smart Card Reader | Realtec (Micro SD card reader)
Webcam | Toshiba Web Camera (Front and Back)

## Installation and configuration

### CPU & Graphics

Works fine after installation, the video have some issues with lightdm locker when locking the session or after resume, if that is the case the configuration recommended for Intel works Intel graphics#Xorg configuration|Intel Arch]]
Touchscreen works fine tested in gnome.

### LTE/3G

Works in some situations. Some providers might not connect with the default configuration.

The built-in Sierra EM7305 is operating in mbim-mode, which is the default configuration on Windows 8/10 Systems. mbim is still not well supported in Linux. Switching to QMI-Mode can solve some problems. Source

    99-em7305.rules

    ACTION!="add|change", GOTO="mbim_to_qmi_rules_end"
    SUBSYSTEM!="usb|drivers", GOTO="mbim_to_qmi_rules_end"

    # force Sierra EM7305 to configuration #1
    SUBSYSTEM=="usb", \
            ATTR{idVendor}=="1199", ATTR{idProduct}=="9063", \
            ATTR{bConfigurationValue}="1"

    # load qcserial module
    SUBSYSTEM=="usb", \
            ATTR{idVendor}=="1199", ATTR{idProduct}=="9063", \
            RUN+="/sbin/modprobe -b qcserial"

    # add the new id in the qcserial driver
    SUBSYSTEM=="drivers", \
            ENV{DEVPATH}=="/bus/usb-serial/drivers/qcserial", \
            ATTR{new_id}="1199 9063"

    # load qmi_wwan module
    SUBSYSTEM=="usb", \
            ATTR{idVendor}=="1199", ATTR{idProduct}=="9063", \
            RUN+="/sbin/modprobe -b qmi_wwan"

    # add the new id in the qmi_wwan driver
    SUBSYSTEM=="drivers", \
            ENV{DEVPATH}=="/bus/usb/drivers/qmi_wwan", \
            ATTR{new_id}="1199 9063"

    LABEL="mbim_to_qmi_rules_end"

## Keyboard backlight

For instructions on Keyboard backlight toggle see Toshiba Portege Z30-A#Installation and configuration.

Since changing sys values requires root, one can either write a wrapper for bash scripts for setuid, which is generally considered insecure. Here is a simple toggle switch: KbdBacklightToggle in C

### Fn-F9 Touchpad Toggle

Needs custom hwdb to work. See Extra keyboard keys. Example hwdb provided here, but you might want to choose a different keycode: HWDB Config

## Issues

### No speaker sound when resuming from suspend to RAM

See https://bbs.archlinux.org/viewtopic.php?id=213720

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