I have a Galaxy S7 (SM-G930F) with Kernel 3.18.91. and Android 8.0. The phone was rooted just recently with the latest version of magisk.
I am not quite the expert, but I will try my best to describe the issue.
Basically after I rooted this phone, I started noticing that I could no longer play back videos in Whatsapp before I send them (the preview window where you can edit it before sending it).
All it does now is play back the audio and show a black screen. It doesn't crash or anything, the content of the video is just not being played except the audio.
Video playback is completely fine in the stock gallery app and everywhere else.
I already reinstalled Whatsapp and restarted my Phone
I have the following modules for magisk installed:
Viper4Android FX 2.7.1
Samsung 4K60 Camera Mod 7.6.86
I also removed some of the bloating software with the terminal, but upon noticing this issue I decided to revert some of the changes. I do not know if this issue persisted beforehand. I was thinking that I might have deleted something here that was important for its functionality, but then the stock player wouldnt work either right?
I would rather not do a factory reset to fix this, if possible. However, if there is no other possibilty is there a way to backup all my modules and settings?
Here is what I tried:
reinstall Whatsapp multiple times
restart the phone
revert some of the changes in the debloater terminal
deactivate HW overlay
My guess is that I deleted something in the terminal that was important, is there a way to know for sure?
I hope someone can give me some hints as to what this problem is about. I will make sure to add screenshots of the list EDIT: need 10 posts to send links so I will just do it manually.
list of removed apps:
samsung galaxy friends
galaxy essential widgets
Gear VR Service
Samsung gear, account, billing, cloud
EDIT 2: I found a temporary fix by enabling force GPU rendering in the system settings, I double checked by enabling the refresh indicator and previewing a video. Once I disable this option, video preview no longer works again. Question now is, if there is a way for me to exclusively enable this for whatsapp to save battery life