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    • J

      cool pi arm board with ubuntu create bootable udisk
      • jack_admin

      1
      0
      Votes
      1
      Posts
      2
      Views

      No one has replied

    • M

      Open Source 14 inch Rockchip RK3588 laptop password
      • mtiqbal

      2
      0
      Votes
      2
      Posts
      47
      Views

      G

      @mtiqbal 123

    • E

      I failed to install NoMachine on Coolpi cm5
      • etrin

      3
      0
      Votes
      3
      Posts
      93
      Views

      E

      @大法师 Thank you for your reply. I will check with the information you provided.have a good day

    • J

      coolpi 4b ubuntu4b 触摸屏键盘
      • jugg

      6
      0
      Votes
      6
      Posts
      68
      Views

      J

      @george
      网上找的基本都是虚拟键盘 没找到什么有效的方法
      这个不是虚拟键盘 只有在用触摸屏的时候才会出现
      而且即使光标在文本框内 通过这个键盘也无法输入

    • G

      No Onedrive access to images
      • gbmichael28

      4
      0
      Votes
      4
      Posts
      50
      Views

      大法师

      @gbmichael28 Thanks! Which page link? we will update it.

    • E

      CM5 reboots for no reason.
      • etrin

      3
      0
      Votes
      3
      Posts
      54
      Views

      E

      @george thank you for the reply.As you said, we have confirmed that it is a power issue. Thank you. Have a nice day.

    • 大法师

      使用coolpi 4b搭建rtmp服务器
      • 大法师

      1
      0
      Votes
      1
      Posts
      47
      Views

      No one has replied

    • J

      cool pi 4b & CM5 linux system support compile u-boot
      • jack_admin

      3
      0
      Votes
      3
      Posts
      137
      Views

      J

      本机也可以直接编译u-boot源代码。

      补充安装依赖,再更新编译脚本

      sudo apt install device-tree-compiler python2
    • J

      额外接SD卡
      • jugg

      2
      0
      Votes
      2
      Posts
      30
      Views

      大法师

      @jugg ls -l /media/ 查看权限,如果是root,可以试下sudo chown -R coolpi:coolpi /media/coolpi

    • 大法师

      cool pi nano rv1106 with ubuntu22 server
      • 大法师

      5
      0
      Votes
      5
      Posts
      186
      Views

      大法师

      @3395438 👍 确实是好芯片

    • 花

      debain系统必须要密码登录吗
      • 花月

      2
      0
      Votes
      2
      Posts
      52
      Views

      G

      @花月 可以设置无密码登陆的,网上搜索一下方法。

    • X

      最新的ubuntu22.04版本支持树莓派HQ Camera了吗?
      • xingzhan2012

      6
      0
      Votes
      6
      Posts
      203
      Views

      X

      @jack_admin @大法师 现在支持HQ Camera了吗

    • M

      Upgrading always bricks my SSD images
      • murraytodd

      2
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      Votes
      2
      Posts
      29
      Views

      大法师

      @murraytodd 4b or cm5 evb board? could you supply some more message through uart console?

    • 零

      编译内核所用的交叉编译器是哪个版本的?
      • 零度灬救赎

      3
      0
      Votes
      3
      Posts
      39
      Views

      大法师

      参考
      https://wiki.cool-pi.com/en/home/application_notes

    • D

      Support for Ubuntu 22.04 Server on CoolPi
      • dbtech

      5
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      Votes
      5
      Posts
      104
      Views

      G

      @dbtech You can download it from the following website:
      https://coolpi-my.sharepoint.com/personal/coolpi_coolpi_onmicrosoft_com/_layouts/15/onedrive.aspx?ga=1&id=%2Fpersonal%2Fcoolpi_coolpi_onmicrosoft_com%2FDocuments%2Fcoolpi%2Fcoolpi%2FCoolPi 4B%2Fubuntu

    • B

      目前的20230613-ubuntu20.04版本预装了rknn-toolkit2、usb-hub支持吗
      • bbsvs2000

      3
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      Votes
      3
      Posts
      66
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      B

      @george said in 目前的20230613-ubuntu20.04版本预装了rknn-toolkit2、usb-hub支持吗:

      @bbsvs2000 有支持

      ok

    • J

      DSI显示器和HDMI显示器下mpv播放视频的问题
      • jugg

      5
      0
      Votes
      5
      Posts
      51
      Views

      G

      @jugg 这个还是从应用软件想办法解决,底层暂时没有可以修改的。可以参考一下MPV播放器的源码实现。

    • J

      ubuntu22.04选择桌面
      • jugg

      10
      0
      Votes
      10
      Posts
      94
      Views

      G

      @jugg 进入系统先新建一个管理员账户,重启,使用新建的管理员账户登陆,然后删除coolpi账户即可。

    • J

      修改登陆logo
      • jugg

      4
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      Votes
      4
      Posts
      90
      Views

      J

      @jugg 开机logo更新

      https://www.cool-pi.com/topic/211/coolpi-4b-support-dynamic-update-logo

    • J

      程序编译错误
      • jugg

      12
      0
      Votes
      12
      Posts
      114
      Views

      J

      @george
      可以编译了

    • 大法师

      UOS系统预览
      • 大法师

      2
      1
      Votes
      2
      Posts
      120
      Views

      J

      @大法师
      这个有系统镜像吗?
      5B上能不能用?

    • J

      磁盘空间
      • jugg

      12
      0
      Votes
      12
      Posts
      110
      Views

      大法师

      @jugg
      刷机占用多少,安装包预装以及使用过程apt 相关安装都会占用空间,还有系统/var/log/journal也会持续增长。具体可以逐个分析每个目录大小

      cd / du -sh * --exclude="proc"
    • M

      Strange screen-freezing issue
      • murraytodd

      3
      0
      Votes
      3
      Posts
      88
      Views

      M

      @george Thanks for checking. That's really strange. At first I thought the issue was associated with the monitor—some HDMI compatibility glitch—but was able to get the same behavior across three different televisions. I've done it with both the 20230424 and 20230306 Ubuntu 22.04 images as well as the new 23.04 image. I've even installed the image on both the SSD care and the built-in eMMC.

      I've also kept syslog and dmesg logs open (on an SSH session) and I'm not seeing any messages that make sense. All I know is that the instant I hit the OK button to log out or restart or shutdown, the screen freezes and the mouse pointer doesn't move. But it doesn't happen with the built-in default "coolpi" account.

      If anyone has any theories or ideas of what I might capture to further diagnose, let me know.

    • J

      4B 内核开发环境编译RTL88XX网卡驱动
      • jugg

      26
      0
      Votes
      26
      Posts
      201
      Views

      J

      88x2 的驱动编译安装后
      使用这个wifi的网络系统必崩溃
      COM_4_2023-05.log

    • M

      This topic is deleted!
      • murraytodd

      4
      0
      Votes
      4
      Posts
      41
      Views
    • M

      ustc.edu.cn/ubuntu-ports repositories
      • murraytodd

      2
      0
      Votes
      2
      Posts
      52
      Views

      J

      @murraytodd that's okay.

    • J

      桌面抓取
      • jugg

      3
      0
      Votes
      3
      Posts
      74
      Views

      G

      @jugg 还可以参考下图方法直接dump出buffer
      4576f6c9-670c-4d3e-a852-edb90eb4874f-image.png

    • 大法师

      Coolpi 4b Ubuntu20.04 原生系统
      • 大法师

      41
      0
      Votes
      41
      Posts
      1220
      Views

      J

      @bg8wj
      更新到新镜像或使用新内核编译替换

    • E

      Cool Pi4 Ubuntu 22.04 上 ssh remote 方式访问USB摄像头的问题与解决
      • edwardzhou

      2
      1
      Votes
      2
      Posts
      95
      Views

      G

      @edwardzhou : good

    • J

      rk mpp平台YUV格式支持问题
      • jugg

      18
      0
      Votes
      18
      Posts
      207
      Views

      J

      @george
      yuv i420那个有办法吗
      videoconvert
      mppjpegdec
      好像都不支持从nv12转i420

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