This document applies to the 11-inch HDMI screen touch issues currently known on youyeetooR1 and yy3588 devices.
The 11-inch HDMI screen has touch issues on Ubuntu and Debian systems, with the following specific symptoms:
| System | Symptom | Cause |
|---|---|---|
| Ubuntu | Touchscreen is unusable and the mouse cursor moves to other positions | Ubuntu has a virtual screen, and touch input is mapped to the virtual screen |
| Debian | Mouse pointer has vertical or horizontal offset | Debian has a virtual screen, and the two screens overlap |
In addition to the above issues, the Debian system also has a problem where double-clicking cannot open desktop folders or folders in the file manager. This is because Debian uses the Thunar file manager, which is set to open files with a double-click by default. However, the Debian system has a judgment issue where even a very small deviation is interpreted as a drag operation rather than a double-click. This is why double-clicking with a mouse works but tapping does not. Furthermore, desktop icons in Debian have the same issue, but this is not a Thunar problem — it is a desktop setting issue that also needs to be fixed through configuration changes.
Additionally, testing has shown that both systems have a problem where settings are reset after a system shutdown and restart, requiring reconfiguration. However, this issue does not occur when power is cut directly. The cause of this problem is unclear and requires further investigation.
Upload the following script to the board, grant it execute permission, and run it. Do NOT use ADB for this process; you can copy it to the board via a USB drive.
Script Download
Script modifications:
| System | Modifications |
|---|---|
| Ubuntu | Set the display mode to single monitor mode, set HDMI-1 as output, and write to startup |
| Debian | Disable DSI-1 display, set desktop click and Thunar to single-click mode, and write to startup |