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

@花月 可以设置无密码登陆的，网上搜索一下方法。

@jack_admin @大法师 现在支持HQ Camera了吗

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

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

@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

@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

@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。

@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。

@jugg 开机logo更新

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

@george
可以编译了

@大法师
这个有系统镜像吗？
5B上能不能用？

@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"

@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.

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

@murraytodd that's okay.

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

@bg8wj
更新到新镜像或使用新内核编译替换

@edwardzhou : good

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

@AugustRobot_Zou 👍 👍

@edwardzhou 默认video11

@jack_admin 原來是這樣 ... 哈哈！

@jack_admin
我用 gnome-session-properties 添加了，謝謝

@jack_admin

可以使用，感谢。
的确关掉效果没有绑定大核好。

@jugg

coolpi@coolpi:~$ sudo apt install qtmultimedia5-dev [sudo] password for coolpi: Reading package lists... Done Building dependency tree... Done Reading state information... Done The following package was automatically installed and is no longer required: libllvm15 Use 'sudo apt autoremove' to remove it. The following additional packages will be installed: libblkid-dev libglib2.0-dev libglib2.0-dev-bin libmount-dev libpcre16-3 libpcre2-dev libpcre2-posix3 libpcre3-dev libpcre32-3 libpcrecpp0v5 libqt5multimedia5 libqt5multimediagsttools5 libqt5multimediaquick5 libqt5multimediawidgets5 libselinux1-dev libsepol-dev uuid-dev Suggested packages: libgirepository1.0-dev libglib2.0-doc The following NEW packages will be installed: libblkid-dev libglib2.0-dev libglib2.0-dev-bin libmount-dev libpcre16-3 libpcre2-dev libpcre2-posix3 libpcre3-dev libpcre32-3 libpcrecpp0v5 libqt5multimedia5 libqt5multimediagsttools5 libqt5multimediaquick5 libqt5multimediawidgets5 libselinux1-dev libsepol-dev qtmultimedia5-dev uuid-dev 0 upgraded, 18 newly installed, 0 to remove and 0 not upgraded. Need to get 4799 kB of archives. After this operation, 23.8 MB of additional disk space will be used. Do you want to continue? [Y/n] coolpi@coolpi:~$ sudo apt install qtmultimedia5-dev Reading package lists... Done Building dependency tree... Done Reading state information... Done The following package was automatically installed and is no longer required: libllvm15 Use 'sudo apt autoremove' to remove it. The following additional packages will be installed: libblkid-dev libglib2.0-dev libglib2.0-dev-bin libmount-dev libpcre16-3 libpcre2-dev libpcre2-posix3 libpcre3-dev libpcre32-3 libpcrecpp0v5 libqt5multimedia5 libqt5multimediagsttools5 libqt5multimediaquick5 libqt5multimediawidgets5 libselinux1-dev libsepol-dev uuid-dev Suggested packages: libgirepository1.0-dev libglib2.0-doc The following NEW packages will be installed: libblkid-dev libglib2.0-dev libglib2.0-dev-bin libmount-dev libpcre16-3 libpcre2-dev libpcre2-posix3 libpcre3-dev libpcre32-3 libpcrecpp0v5 libqt5multimedia5 libqt5multimediagsttools5 libqt5multimediaquick5 libqt5multimediawidgets5 libselinux1-dev libsepol-dev qtmultimedia5-dev uuid-dev 0 upgraded, 18 newly installed, 0 to remove and 0 not upgraded. Need to get 4799 kB of archives. After this operation, 23.8 MB of additional disk space will be used. Do you want to continue? [Y/n]

@ccjjww1222 V11版本是板载天线。V10是外置天线，你的是哪个版本

@大法师 是权限问题，修改/media/coolpi文件夹的用户为coolpi就可以了