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    cm5-evb 的刷机教程希望出一个

    Scheduled Pinned Locked Moved Pi CM5
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    • 大法师大
      大法师 @顾真牛
      last edited by

      @顾真牛
      内核目前是一套代码,两个编译参数区分

      jack@cool-pi.com

      顾 T 2 Replies Last reply Reply Quote 0
      • 顾
        顾真牛 @大法师
        last edited by

        @大法师 翻到了, 还是要出个wiki吧 论坛翻起来有点累

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        • J
          jack_admin @顾真牛
          last edited by

          @顾真牛 在规划部署。

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          • 顾
            顾真牛 @george
            last edited by

            @george EDID 怎么读 内核修改哪个文件呀?我正在龟速 git clone 希望明年能拉完kernel

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            • G
              george @顾真牛
              last edited by

              @顾真牛 可以抓下开机log和这个显示器的edid:
              cat /sys/class/drm/card0-HDMI*/edid > /data/edid.bin

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              • 顾
                顾真牛 @george
                last edited by

                edid.bin

                1 Reply Last reply Reply Quote -1
                • L
                  likeshixi @大法师
                  last edited by

                  This post is deleted!
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                  • 顾
                    顾真牛 @george
                    last edited by

                    @george

                    1:首先安装解析工具:
                    sudo apt-get install read-edid edid-decode
                    2:解析 edid.bin
                    parse-edid < edid.binr看到解析出的信息。
                    cat edid.bin edid-decode > edid.txt

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                    • 顾
                      顾真牛 @george
                      last edited by

                      @george 我看了下解出来的edid信息 好像有俩对的分辨率
                      edid.txt

                      9727b3e5-9234-409b-b69f-6c8f3b89a843-image.png

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                      • G
                        george @顾真牛
                        last edited by

                        @顾真牛 uboot 和kernel 搜索edid.c 有个白名单把你的分辨率加进去 static const struct base_drm_display_mode resolution_white[]

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                        • G
                          george @顾真牛
                          last edited by george

                          @顾真牛 下周发布底板的设计资料。

                          顾 1 Reply Last reply Reply Quote 0
                          • 顾
                            顾真牛 @george
                            last edited by

                            @george

                            948c29cc-15b1-4e90-ac6c-d492f87a5e01-image.png

                            好像不太对 没这个文件

                            1 Reply Last reply Reply Quote 0
                            • 顾
                              顾真牛 @george
                              last edited by

                              @george 好像应该是 e9cbc877-d81d-4d9f-acf3-8168964ea897-image.png
                              drm_edid.c 这个文件吧? 我试试 也没你说的那个函数 不过可以添加一下参数

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                              • 顾
                                顾真牛 @george
                                last edited by

                                @george 帮忙看下吧 我加了几个地方不对

                                '''
                                { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000, 4096, 4184,
                                4272, 4400, 0, 2160, 2168, 2178, 2250, 0,
                                DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
                                .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
                                '''

                                .picture_aspect_ratio 这个好像是屏幕比例 我这特殊屏 192:55 或者 32:9的哪里添加

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                                • L
                                  likeshixi @大法师
                                  last edited by

                                  @大法师 接2k的显示器系统分辨率最高选项只有显示1920x1080截图 2023-04-02 18-15-48.png

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                                  • L
                                    likeshixi @大法师
                                    last edited by

                                    @大法师 没有查看u盘内容的权限截图 2023-04-03 09-48-44.png

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                                    • T
                                      Twsuts @大法师
                                      last edited by

                                      @大法师 那请问一下,如果我CP4换到CM5我的系统要咋修改一下呢

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

                                        @大法师 没有查看u盘内容的权限,怎么回事截图 2023-04-03 12-33-30.png

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

                                          @likeshixi
                                          sudo chown -R coolpi:coolpi /media/coolpi

                                          jack@cool-pi.com

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

                                            @Twsuts
                                            ISO刷机包有对应的CM5文件

                                            jack@cool-pi.com

                                            1 Reply Last reply Reply Quote 0
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