I'm fairly inexperienced with Linux and have a very difficult situation. My last cellphone's screen cracked, got water damaged and now has a dead screen. It's a newer phone (Galaxy A8) and it still connects to my PC. The touchscreen also works, it's only the display that's down.
My goal is to somehow mirror it to Linux so that I can unlock the pattern code and recover some photos. One potential issue is that usb debugging could be disabled.
I tried installing adb and ran this code: adb shell screenrecord --output-format=h264 - | ffplay -
Then I received this error: pipe:: Invalid data found when processing inputKB sq= 0B f=0/0
Worst case scenario - if there's no way to do it on Linux, I could always partition my hard drive and install Windows. (Knock on wood...)
Do you have any ideas or advice? Thank you for your time, I am immensely grateful! :-)