Pegatron Chagall (pegatron-chagall)

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Pegatron Chagall
Fujitsu M532 (Pegatron Chagall rebrand) running postmarketOS
Fujitsu M532 (Pegatron Chagall rebrand) running postmarketOS
Manufacturer Pegatron
Name Chagall
Codename fujitsu-m532 / pegatron-chagall
Released 2012
Category testing
Original software Android 4.0.3 (kernel 2.6)
Hardware
Chipset Nvidia Tegra 3 T30
CPU Quad-core 1.4 GHz Cortex-A9
GPU NVIDIA ULP GeForce GPU 12 cores
Display 1280x800 IPS LCD
Storage 16 GB
Memory 1 GB
Architecture armv7
Unixbench Whet/Dhry score 1219
Features
USB Networking
Works
Flashing
Works
Touchscreen
Works
Display
Works
WiFi
Works
Xwayland
Works
FDE
Works
Mainline
Works
Battery
Works
3D Acceleration
Partial
Accelerometer
Works
Audio
Partial
Bluetooth
Works
Camera
Broken
GPS
Partial
Mobile data
Broken
SMS
Broken
Calls
Unavailable
USB OTG
Works
NFC
Unavailable


The Pegatron Chagall (commonly known as Fujitsu Stylistic M532) is a mostly business-oriented tablet (still vastly found on second-hand markets, although with outdated Android and kernel versions), sold in 2012 in different variants, mostly in Europe, with slight differences in storage size (16GB/32GB) and presence of built-in cellular modem. It resembles very closely the Asus Transformer TF201 and TF300 tablets, and offers not only very similar specs and design, but also a very similar internal hardware design. The work has been thus based on the TF300 mainline device tree, plus obvious reversing of downstream kernel sources.


Originally built by Pegatron, this device is known under many names:

  • Pegatron Chagall
  • Fujitsu Stylistic M532
  • Olivetti Olipad 3
  • Siragon 4N
  • Realpad Bunaken
  • DNS AirTab P110w / P110g

Some variants offer mobile connectivity (via a Huawei 3G module, probably USB rather than SDIO, that I haven't investigated yet), some 32GB storage. Mainline kernel should offer full compatibility with most if not all of these.

Mainline kernel hardware

After some work, this tablet can boot mainline kernel with LCD, touchscreen and much more working out of the box. The working mainline kernel is available in the grate branch.

Status Hardware Element Details
Y Chipset Nvidia Tegra T30S
P Graphics Nvidia ULP Basic acceleration in grate/opentegra
Y RAM K4P8G304EB
Y Display HannStar HSD101PWW2
Y USB built-in
Y Backlight PWM
Y Touchscreen Atmel maXTouch
Y PMIC Texas Instruments TPS65911
Y Bluetooth BCM4330
Y Gyroscope Invensense MPU3050
Y Temperature nct1008
Y Proximity/ambient light sensor ISL29023
Y Accelerometer, gyro(s) Kionix KXTF9
Y WiFi BCM4330
Y Battery and LEDs CG7153AM
P GPS BCM47511 Needs userspace driver
N Rear Camera CE1502 No driver or docs
N Front Camera mt9d115?? Same as Google Nexus 7. No support
N Audio WM8903 Chip is supported, but output is silent
N Modem Huawei MU739 Needs driver, USB bus configuration

Contributors

  • Clamor
  • Ion Agorria
  • R.

Maintainer(s)

  • R.
  • Clamor

Users owning this device

  • R (Notes: Mainlined!)


How to enter flash mode

> Make sure to flash the proper CWM custom recovery for this device first, or due to lacking software or hardware (e.g. key-based) hooks you won't be able to boot to fastboot again from the stock recovery if anything goes wrong!

In case you forget to do that first, but still manage to boot postmarketOS, install `reboot-mode` from repos (via ssh), `sudo reboot-mode bootloader` and fix this as soon as possible to avoid bricking if postmarketOS stops booting for some reason (which is almost bound to happen at some point).

Then boot Android, enable USB debugging, do `adb reboot bootloader` and flash the custom (CWM/TWRP) recovery image to avoid the risk of bricking.

Installation

Use the normal install procedure from pmbootstrap. "live booting" the kernel with external SD without touching the internal Android partition seems to work with mainline kernel

To-do list

As usual, several things are still to be done before the device can be considered fully supported.

  • Fix audio. Seems to be nearly identical to ASUS TF300T
  • Fix accelerometer mount matrix
  • Enable 3G modem
  • Enable cameras (write kernel drivers)

See also