Poor quality of the screen

- [x] I have read the [FAQ](https://github.com/Genymobile/scrcpy/blob/master/FAQ.md).
- [x] I have searched in existing [issues](https://github.com/Genymobile/scrcpy/issues).

**Environment**
- OS: Windows 10
- scrcpy version: 1.23
- installation method: Windows
- Android version: ODROIDC2 (Android 6.0.1)

**Describe the bug**
I have these messages :

_[server] ERROR: Encoding error: java.lang.IllegalStateException: null
[server] INFO: Retrying with -m1600...
[server] ERROR: Encoding error: java.lang.IllegalStateException: null
[server] INFO: Retrying with -m1280...
INFO: Renderer: direct3d
INFO: Initial texture: 1200x1920
[server] ERROR: Encoding error: java.lang.IllegalStateException: null
[server] INFO: Retrying with -m1024...
INFO: New texture: 640x1024_

But the text is really hard to read:


I tried this option --render-driver=opengl but i don't have any screen showned then.

Any ideas ?

No source file, test, or entry point is identified in the issue. Reproduce the reported quality problem with Windows 10, scrcpy 1.23, and the ODROIDC2 Android 6.0.1 setup, starting from the displayed encoder errors and renderer output; done means the cause is diagnosed and the screen is readable or the compatibility limitation is documented.

Written by the indexing model from the issue text.