Blurry or Unclear Picture Quality
Problem Description
During screen mirroring, if the picture is blurry, unclear, or has obvious graininess, it is usually related to resolution configuration.
Too low screen mirroring resolution will cause image detail loss; too high will increase network bandwidth usage, causing delay or lag.
Main Factors Affecting Picture Quality
Screen Mirroring Resolution Settings in Cloud Control Background
Can be modified in Cloud Control Background → Group Control Screen Mirroring Page → Global Configuration → Screen Mirroring Configuration.
Cloud Control Background provides three display modes, each mode can set resolution separately according to usage scenarios:
| Display Mode | Applicable Scenarios | Recommended Resolution | Description |
|---|---|---|---|
| Grid Display | Multiple devices simultaneous monitoring | 270×480 | Moderate clarity, low network speed usage, suitable for multiple screens simultaneous mirroring |
| Floating Display | Local operation viewing | 360×640 | Higher clarity, suitable for single device interactive operation |
| Full Screen Display | Single device full screen control | 420×750 | Clearest, suitable for single device remote control |
💡 Why are there three display modes? Because under different usage scenarios, the number of screen mirroring and requirements vary greatly:
- Grid Display: Pursues simultaneous monitoring smoothness, reduces bandwidth usage;
- Floating Display / Full Screen Display: Focuses on single device operation experience and screen clarity.
Controlled End (Phone End) Resolution Settings
To obtain clearer pictures, it is recommended to set the phone end display resolution to lowest value.
This way video encoding compression range is smaller, picture quality is clearer.
Setting Method:
- Open phone Settings → Display & Brightness → Screen Resolution;
- Adjust resolution to lowest level (some models display as "Standard Resolution");
- If device does not support resolution adjustment, can modify through following ADB command:
⚠️ Precautions
- Some phone systems (such as MIUI, ColorOS, etc.) do not provide manual resolution modification options.
- After modifying through ADB command, some devices may experience coordinate offset issues.
- If coordinates are abnormal, can restore default settings or restart device to solve.
Summary and Optimization Suggestions
- If focus is on multiple devices simultaneous display → Prioritize reducing resolution (like 270×480);
- If focus is on clarity and operation smoothness → Increase single screen resolution (like 420×750);
- If network bandwidth is limited, can appropriately reduce bitrate rather than only reducing resolution;
- Ensure phone and computer network stability (recommend 5G Wi-Fi or wired connection).