@etrin
Please note that the updated USB port is the USB 3.0 interface located on the upper layer near the power connector.

@jugg
最新的uboot就可以支持，你可以同步代码自己编译更新。

@jugg
这个需要有驱动支持才可以，移远我记得有个软件移植手册有说明，明天上传上来。

@george
The following figure shows the location of the debug serial port, with a serial port level of 3.3V and a baud rate of 115200

@etrin
Can the machine enter UMS mode normally? If it can enter UMS mode, you can try formatting the UMS disk using Windows tools and then burning the Ubuntu system again. Generally, if the system can be burned normally, it indicates that there is no hardware problem.

@jugg
确认USB接口为上层的USB3.0接口？

@anernest
The currently debugged LCD models are shown in the attachment. The github code has been supported by default. The replacement steps are as follows:

1. Replace the LCD screen with a touchscreen model
2. Replace the ribbon cable
3. It is necessary to add a touch screen level conversion board
   B8 NB Product Spec-NV140FHM-T07-2021.03.03(2).pdf

@enok71
George ppa provides ffmpeg source code and its patches, and can continue to develop on this code. We hope to support more formats. Especially in the coding part.

@enok71
The hardware acceleration software package currently defaults to using George PPA. We are currently researching a new branch and will release the results as soon as possible.

@enok71
Due to copyright issues with ffmpeg, only limited decoding support has been provided for ffmpeg Rockchip.

@jugg 在浏览器测试是否可以放大缩小！用chromium。

@阿里
这个应该是和显示框架有关，可以在驱动加打印看看。

@jugg
摄像头的问题会尽快确认回复。谢谢支持。

@银河铁道
修改DTS配置，然后把编译生成的dtb文件拷贝到boot分区重启即可。

@阿里
具体是什么情况。看log信息没有触摸屏的注册。

@jugg
请使用ubuntu22.04的镜像测试。

@阿里
下面这个配置去掉

@zehui
启动的流程是一样的，目前uboot的结构如下：

FIT description: FIT Image with ATF/OP-TEE/U-Boot/MCU
Created:         Wed Feb 28 09:32:41 2024
 Image 0 (uboot)
  Description:  U-Boot
  Created:      Wed Feb 28 09:32:41 2024
  Type:         Standalone Program
  Compression:  uncompressed
  Data Size:    1389728 Bytes = 1357.16 KiB = 1.33 MiB
  Architecture: AArch64
  Load Address: 0x00200000
  Entry Point:  unavailable
  Hash algo:    sha256
  Hash value:   e8eeabe5b2891390396b4cb77a33c5bb8da03b1da33a64274a077cf386f2b5aa
 Image 1 (atf-1)
  Description:  ARM Trusted Firmware
  Created:      Wed Feb 28 09:32:41 2024
  Type:         Firmware
  Compression:  uncompressed
  Data Size:    200008 Bytes = 195.32 KiB = 0.19 MiB
  Architecture: AArch64
  Load Address: 0x00040000
  Hash algo:    sha256
  Hash value:   c902200be1343fe569e54778c286005b1c6163606664c463a24d787be4376966
 Image 2 (atf-2)
  Description:  ARM Trusted Firmware
  Created:      Wed Feb 28 09:32:41 2024
  Type:         Firmware
  Compression:  uncompressed
  Data Size:    24576 Bytes = 24.00 KiB = 0.02 MiB
  Architecture: AArch64
  Load Address: 0xff100000
  Hash algo:    sha256
  Hash value:   225d6bf0712f850648223365ba06a73ba5f6315fb8a9580f23ab48ece795f91e
 Image 3 (atf-3)
  Description:  ARM Trusted Firmware
  Created:      Wed Feb 28 09:32:41 2024
  Type:         Firmware
  Compression:  uncompressed
  Data Size:    24576 Bytes = 24.00 KiB = 0.02 MiB
  Architecture: AArch64
  Load Address: 0x000f0000
  Hash algo:    sha256
  Hash value:   aa71013e72d7ab4be264c1093b155ef06e65d0a263d552be25b13c8ddf285586
 Image 4 (optee)
  Description:  OP-TEE
  Created:      Wed Feb 28 09:32:41 2024
  Type:         Firmware
  Compression:  uncompressed
  Data Size:    465304 Bytes = 454.40 KiB = 0.44 MiB
  Architecture: AArch64
  Load Address: 0x08400000
  Hash algo:    sha256
  Hash value:   66e30bf9e879405a49797aaa6c08ca1c41aa325443e910af42e3df309e65909b
 Image 5 (kern-fdt)
  Description:  cp4/uboot.dtb
  Created:      Wed Feb 28 09:32:41 2024
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    141854 Bytes = 138.53 KiB = 0.14 MiB
  Architecture: AArch64
  Hash algo:    sha256
  Hash value:   ba43bc47ab29f0cbcba25658712ac3d3c6349a30486c76d5b720310e58f02de3
 Image 6 (fdt)
  Description:  U-Boot dtb
  Created:      Wed Feb 28 09:32:41 2024
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    7065 Bytes = 6.90 KiB = 0.01 MiB
  Architecture: AArch64
  Hash algo:    sha256
  Hash value:   987a71d492c0045c4964bbed7799da0eee5276a2b60b5a1335fc2d37fdfcf944
 Default Configuration: 'conf'
 Configuration 0 (conf)
  Description:  rk3588s-cp4
  Kernel:       unavailable
  Firmware:     atf-1
  FDT:          fdt
                kern-fdt
  Loadables:    uboot
                atf-2
                atf-3
                optee

@阿里
可以尝试禁止掉HID-GENERIC这个驱动。

@阿里
从log看设备识别为两个设备，这个可能会有冲突。