Samsung Galaxy Tab 2 7.0 (samsung-espresso7)
![]() Samsung Galaxy Tab 2 7.0 | |
Manufacturer | Samsung |
---|---|
Name | Galaxy Tab 2 7.0 |
Codename | samsung-espresso3g |
Released | 2012 |
Hardware | |
Chipset | TI OMAP 4430 |
CPU | Dual-core 1.0 GHz |
GPU | PowerVR SGX540 |
Display | 7.0 inches, 137.9 cm2 (~58.2% screen-to-body ratio) 600 x 1024 pixels, 16:9 ratio (~170 ppi density) |
Storage | 8/16/32 GB |
Memory | 1 GB |
Architecture | armv7 |
Software | |
Original software | Android |
postmarketOS | |
Category | community |
Pre-built images | yes |
postmarketOS kernel | 5.15.2 |
Unixbench Whet/Dhry score | 442.9 |
Flashing |
Works |
---|---|
USB Networking |
Works |
Internal storage |
No data |
SD card |
No data |
Battery |
Works |
Screen |
Works |
Touchscreen |
Works |
Multimedia | |
3D Acceleration |
Partial |
Audio |
Broken |
Camera |
Broken |
Camera Flash |
No data |
Connectivity | |
WiFi |
Works |
Bluetooth |
Works |
GPS |
No data |
Miscellaneous | |
FDE |
Works |
USB OTG |
Broken |
HDMI/DP |
No data |
Sensors | |
Accelerometer |
Works |
Magnetometer |
No data |
Ambient Light |
No data |
Proximity |
No data |
Hall Effect |
No data |
Haptics |
No data |
Barometer |
No data |
Contributors
- Mighty
- AAT596 (testing in espressowifi variant)
Users owning this device
- Casept (Notes: Wi-Fi version)
- Materialred
How to enter flash mode
Press Power + Volume Up to enter download/odin mode. Press Power + Volume Down to enter recovery.
What works (downstream)
- Display
- Touch
- Mate
- WiFi (using nmtui in terminal)
- Battery
Hardware status (mainline)
Status | Hardware | Info |
---|---|---|
Y | Panel | Samsung LTN070NL01 LCD panel |
Y | Touchscreen | MMS136 |
Y | SD cards | MicroSD card. |
Y | Internal memory | |
N | GPS | |
Y | WiFi | Uses BCM4330B1. |
Y | Bluetooth | Uses BCM4330B1. |
Y | GPIO keys | There are 2 keys on GPIO: Volume up, Volume down. |
P | Charger | SMB136 WIP by mighty17 |
Y | Fuel Gauge | MAX17042 |
Y | PMIC | TWL6032 |
N | Sound | Sound codec is WM1811. |
Y | Accelerometer | BMA254 |
Y | Magnetometer | YAS530 |
N | Proximity and Light | The P3100 variant has GP2A002, P3110 variant has AL3201. |
N | Cameras | Front - SR030PC50 Back - S5K5CCGX (OMAP4 devices have Ducati firmware for cameras) |
P | GPU | PowerVR SGX 540 needs out-of-tree kernel module, patched mesa, and some proprietary blobs |
N | Modem | Only in espresso3g (P3100 and P5100) - XMX6262 |
Building
When building with pmbootstrap and ui that requires wlroots (that is Phosh/Sway) you will need to build a patched version of wlroots from here https://gitlab.com/antoni.aloytorrens/p-wlroots/-/tree/master/apkbuild Copy the apkbuild directory from the repo into your pmaports dir and rename it to p-wlroots. Then add "p-wlroots" as an extra packages during pmbootstrap init.
STATUS
Supported variants
- samsung-espressowifi, which is almost identically similar to samsung-espresso3g, but with the exception that it has no modem.
Display
OMAPDRM works fine.
Display seems to be running at 30Hz due to the clock speed for 60Hz not working properly.
Brightness needs a correct PWM clock value. For now, it flickers at low brightness.
Touchscreen
Touchscreen is MMS136 and it works fine. Already in upstream.
Bluetooth
Bluetooth works. You can enable and manage it with bluez and bluetoothctl.
Battery
Fuel gauge works fine. The charger driver is WIP, if connected to usb during boot, then only it charges.
Camera
OMAP4 has different subsystem (Ducati) for camera which is non free. Probably will never work on mainline.
3D GPU Acceleration
3D acceleration works fine. SGX540 blobs also seem to be missing some EGL configs, so UIs like plasma-mobile do not work, gnome-software crashes etc. It crashes sometimes like when opening firefox. Video decoding does not work as it is done by Ducati subsystem.
Phosh
By default phosh has a scaling 1, this makes us unable to unlock the screen. So we need to set it to 0.75 (https://wiki.postmarketos.org/wiki/Phosh#Manual_Scaling) by adding
[output:LVDS-1] scale = 0.75
in /usr/share/phosh/phoc.ini.
You can revert it back to 1 to get better performance.
wlr-randr can also be used.
Known issues
See https://gitlab.com/postmarketOS/pmaports/-/issues/1211
See also
Mainline WIP kernel:
Screenshots
-
Mate on Samsung Galaxy Tab 2 7.0
-
Mate on Samsung Galaxy Tab 2 7.0
-
Phosh (5.12 kernel, espressowifi) on Samsung Galaxy Tab 2 7.0