Lenovo IdeaPad Duet 5 (google-homestar)
 |
This device is supported as part of a generic port. Refer to Google Trogdor Chromebook (google-trogdor) for installation instructions and more information. |
| File:TODO | |
| Manufacturer | Lenovo |
|---|---|
| Name | IdeaPad Duet 5 |
| Codename | google-homestar |
| Released | 2021 |
| Type | detachable |
| Hardware | |
| Chipset | Qualcomm Snapdragon 7c Gen 2 (SC7180P) |
| CPU |
2x Kryo 468 Gold 6x Kryo 468 Silver |
| GPU | Adreno 618 |
| Display | 1920x1080 IPS/OLED |
| Storage | 64/128 GB |
| Memory | 4/8 GB |
| Architecture | aarch64 |
| Software | |
Original software  The software and version the device was shipped with. |
ChromeOS |
Extended version The most recent supported version from the manufacturer. |
ChromeOS |
| postmarketOS | |
| Category | community |
Mainline Instead of a Linux kernel fork, it is possible to run (Close to) Mainline. |
yes |
| Generic port | Google Trogdor Chromebook (google-trogdor) |
| Device package |
 device-google-trogdor |
| Kernel package |
linux-postmarketos-qcom-sc7180 |
Battery Whether charging and battery level reporting work. |
Works
|
|---|---|
Screen Whether the display works; ideally with sleep mode and brightness control. |
Works
|
Touchscreen |
Works
|
Keyboard Whether the built-in physical keyboard works. |
Works
|
Touchpad Whether the built-in touchpad works. |
Partial
|
Stylus |
Works
|
| Multimedia | |
3D Acceleration |
Works
|
Audio Audio playback, microphone, headset and buttons. |
Partial
|
Camera |
Broken
|
| Connectivity | |
WiFi |
Works
|
Bluetooth |
Partial
|
| Miscellaneous | |
FDE Full disk encryption and unlocking with unl0kr. |
Untested
|
USB OTG USB On-The-Go or USB-C Role switching. |
Broken
|
HDMI/DP Video and audio output with HDMI or DisplayPort. |
Partial
|
| Sensors | |
Accelerometer Handles automatic screen rotation in many interfaces. |
Works
|
Hall Effect Measures magnetic fields; usually used as a flip cover sensor |
Untested
|
Users owning this device
Hardware status
Bluetooth
I was able to pair my Headphone and it works. Sometimes no device is listed in GNOME settings and I have to do `bluetoothctl` and then `scan on` for the devices to be shown. To make my keyboard and mouse work I had to do `apk add hidapi` and then `modprobe uhid` (if you have added the device before modprobe, remove and re-pair the device).
Touchpad
Touchpad is initially in absolute mode, where gestures and taps do not work.
Disable keyd service to fix.
$ sudo systemctl stop keyd
$ sudo systemctl disable keyd
You can instead remap keys with udev. [1]
HDMI/DP
If I connect an external monitor, it breaks the Desktop showing only a blinking cursor on both device display and external display. If I plug in the monitor before boot, postmarketos boot animation is shown and then a (blinking) cursor on all displays.
I have been able to connect external monitors both directly in the case of a monitor with a USB-C input and via a USB-C with an HDMI output. However, the process to connect is temperamental and involves plugging in the USB-C device and then putting the tablet to sleep and waking it. I've had the same experience with a couple of different monitors so not sure what is causing it.
Audio
Audio does work on all 4 speakers, but does require Tweaks: In /usr/share/alsa/ucm2/Qualcomm/sc7180/rt5682-max98357a-homestar/HiFi.conf at Section Speaker set PlaybackChannels from 2 to 4 [2]
3D acceleration info
Here's my performance results for glxgears. You can use these as a benchmark to verify everything is working:
~ $ vblank_mode=0 glxgears
ATTENTION: default value of option vblank_mode overridden by environment.
23178 frames in 5.0 seconds = 4635.542 FPS
23453 frames in 5.0 seconds = 4690.543 FPS
23562 frames in 5.0 seconds = 4712.284 FPS
23338 frames in 5.0 seconds = 4667.283 FPS
Terminated
~ $