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    MIPI 屏

    Scheduled Pinned Locked Moved Peripheral
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    • J
      jack_admin @tonyone0902
      last edited by

      @tonyone0902 微雪电子 5寸电容屏

      T 1 Reply Last reply Reply Quote 0
      • T
        tonyone0902 @jack_admin
        last edited by

        @jack_admin 那個5寸之前不是只有build root情況下支援?

        J 1 Reply Last reply Reply Quote 0
        • J
          jack_admin @tonyone0902
          last edited by 大法师

          @tonyone0902 其他系统也支持

          fa26eac2-60e4-4aaf-8f87-4dc78a179983-image.png

          7c443eb5-f24f-4255-b870-cef9dc0ade59-image.png

          267033d9-4bb0-4691-82cb-7e105c0b4181-image.png

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          • T
            tonyone0902
            last edited by

            @jack_admin 知道了,謝謝!

            T 1 Reply Last reply Reply Quote 0
            • T
              tonyone0902 @tonyone0902
              last edited by

              @jack_admin
              我今天購買了 waveshare 的 5inch DSI LCD ,但是插上 cool pi 一開機閃個白光一下之後就進到黑色螢幕沒有任何內容,請問 ubuntu 22.04 這版需要軟體添加什麼設定嗎?

              大法师大 1 Reply Last reply Reply Quote 0
              • 大法师大
                大法师 @tonyone0902
                last edited by 大法师

                @tonyone0902
                5寸电容触摸屏切换操作参考,使用ubuntu 22.04 20230306版本

                需要切换使用rk3588s-cp4-dsi.dtb文件

                coolpi@coolpi:~/Desktop$ cat /boot/firmware/
                Image                      cmdline.txt                extlinux/                  modules.tar.gz             rk3588s-cp4.dtb            
                System Volume Information/ config.txt                 initrd.img                 rk3588s-cp4-dsi.dtb        vmlinuz                    
                coolpi@coolpi:~/Desktop$ cat /boot/firmware/extlinux/extlinux.conf 
                default Linux coolpi
                
                label Linux coolpi
                	kernel /Image
                	initrd /initrd.img
                	fdt    /rk3588s-cp4-dsi.dtb
                	append root=LABEL=writable rw rootfstype=ext4 console=ttyS0,115200n81 quiet splash plymouth.ignore-serial-consoles vt.global_cursor_default=1 irqchip.gicv3_pseudo_nmi=0 net.ifnames=0
                coolpi@coolpi:~/Desktop$
                

                jack@cool-pi.com

                T 1 Reply Last reply Reply Quote 0
                • T
                  tonyone0902 @大法师
                  last edited by

                  @大法师
                  請問修改 extlinux.conf 是直接 vim 進去把 /rk3588s-cp4.dtb 改成 /rk3588s-cp4-dsi.dtb 嗎? 我這樣改寫儲存後,重新開機還是沒有顯示在 mipi 屏上

                  大法师大 1 Reply Last reply Reply Quote 0
                  • 大法师大
                    大法师 @tonyone0902
                    last edited by

                    @tonyone0902
                    系统终端输入dmesg > kernel.log

                    把kernel.log发上来看下。

                    jack@cool-pi.com

                    T 1 Reply Last reply Reply Quote 0
                    • T
                      tonyone0902 @大法师
                      last edited by

                      @大法师 kernel.log

                      大法师大 1 Reply Last reply Reply Quote 0
                      • 大法师大
                        大法师 @tonyone0902
                        last edited by 大法师

                        @tonyone0902
                        vim /boot/firmware/config.txt 一样修改dtb文件名试下。你的机器是什么时间收到的,早期的loader不识别extlinux.conf

                        另外查看下 ls -l /sys/class/drm/

                        jack@cool-pi.com

                        T 2 Replies Last reply Reply Quote 0
                        • T
                          tonyone0902 @大法师
                          last edited by

                          @大法师 時間有點忘了,約莫過年前後買的

                          1 Reply Last reply Reply Quote 0
                          • T
                            tonyone0902 @大法师
                            last edited by

                            @大法师 改config.txt 可以了,謝謝!

                            J 1 Reply Last reply Reply Quote 0
                            • J
                              jack_admin @tonyone0902
                              last edited by

                              @tonyone0902 如果有环境,建议更新到0315 版本loader。

                              1 Reply Last reply Reply Quote 0
                              • J jack_admin moved this topic from Ubuntu on
                              • J
                                jugg
                                last edited by

                                我也试了微雪的这个5寸屏
                                不支持双指 打开一张本地的图片 不能用双指进行缩放 只能用鼠标滚轮缩放
                                但是这个屏接树莓派4b是能用双指缩放的
                                这个需要改哪里吗?

                                大法师大 1 Reply Last reply Reply Quote 0
                                • 大法师大
                                  大法师 @jugg
                                  last edited by

                                  @jugg 需要改触摸驱动代码。打开多点触控

                                  jack@cool-pi.com

                                  J 1 Reply Last reply Reply Quote 0
                                  • J
                                    jugg @大法师
                                    last edited by

                                    @大法师
                                    有计划支持吗?
                                    还是说要怎么改?

                                    大法师大 1 Reply Last reply Reply Quote 0
                                    • 大法师大
                                      大法师 @jugg
                                      last edited by 大法师

                                      @jugg
                                      可以试下修改内核源码

                                      drivers/input/touchscreen/tinker_ft5406.h
                                      @@ -13,7 +13,7 @@
                                       #define FT_REG_FW_SUB_MIN_VER  0xB3
                                       
                                       #define VALID_TD_STATUS_VAL            10
                                      -#define MAX_TOUCH_POINTS               1
                                      +#define MAX_TOUCH_POINTS               5
                                      

                                      重新编译内核,替换Image

                                      jack@cool-pi.com

                                      J 1 Reply Last reply Reply Quote 0
                                      • J
                                        jugg @大法师
                                        last edited by

                                        @大法师
                                        好 有时间我试试

                                        1 Reply Last reply Reply Quote -1
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