This is a collection of scripts, quirks and patches to improve the use of a Samsung TabPro S under Linux distros.
A couple of items require some attention for this device
- The NIC is an
ath10k QCA6174. The firmware support for this device is rather messy and the wrong set of files will break it. Place the contents of theath10k/QCA6174/hw3.0dir in/lib/firmwareand be sure to delete anything else in there. This firmware works very well (30MByte/s on 5ghz without issue) on 4.7.x. - Brightness changes do not work with
intel_backlight, probably because the display is OLED. The way to adjust brightness is by means ofxrandr --brightness; a script is included that uses inotify to monitor changes tointel_backlightso that all existing brightness management tools can function correctly. It should be started with your display manager or in your user session. - TODO: Audio does not work yet. This is an ongoing investigation, but it appears that the
ALC298codec is getting misconfigured because headphone works at double speed/pitch, but speakers produce no sound whatsoever under 4.7/4.8/4.9 kernels. Bugzilla report is https://bugzilla.kernel.org/show_bug.cgi?id=188411 - TODO: There is an
SMO8A80accelerometer which is visible through i2s; it should be leveraged to enable auto rotation - TODO: When disconnecting and reconnecting the dock, the touchpad on the dock stops working. Cause as of yet unknown, but likely an X or synaptics issue.
- TODO: Buttons not tested yet, may or may not work.
System updates regularly break the wireless firmware, requiring the user to again replace the installed firmware files with the ones from this repository as described above, so for the sake of convenience the script install_ath10k.sh is included:
#!/bin/sh
# Delete default broken firmware files
sudo rm /lib/firmware/ath10k/QCA6174/hw3.0/*
# Install the custom firmware files from this repository
sudo cp ./ath10k/QCA6174/hw3.0/* /lib/firmware/ath10k/QCA6174/hw3.0/The oledbrightness script included in this repository sets the screen brightness to match the desktop environment's brightness slider at the time. oled-linux is an alternative that continuously adjusts the screen brightness to match the slider.