@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]

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

@ccjjww1222
参考帖子
https://www.cool-pi.com/topic/131/coolpi-4b-linux-kernel开发在线更新说明/4

@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

@george 试了不能用

gst-launch-1.0 v4l2src device=/dev/video11 ! image/jpeg, width=1920, height=1080, framerate=25/1 ! jpegparse ! mppjpegdec ! kmssink plane-id=88
Setting pipeline to PAUSED ...
ERROR: from element /GstPipeline:pipeline0/GstKMSSink:kmssink0: Could not get allowed GstCaps of device
Additional debug info:
../sys/kms/gstkmssink.c(1183): gst_kms_sink_start (): /GstPipeline:pipeline0/GstKMSSink:kmssink0:
driver does not provide mode settings configuration
ERROR: pipeline doesn't want to preroll.
ERROR: from element /GstPipeline:pipeline0/GstKMSSink:kmssink0: GStreamer error: state change failed and some element failed to post a proper error message with the reason for the failure.
Additional debug info:
../libs/gst/base/gstbasesink.c(5878): gst_base_sink_change_state (): /GstPipeline:pipeline0/GstKMSSink:kmssink0:
Failed to start
ERROR: pipeline doesn't want to preroll.
Failed to set pipeline to PAUSED.
Setting pipeline to NULL ...
Freeing pipeline ...

可以通过了，就因为文件路径存在空格

@jack_admin 👍

@george
gstramer的硬件解码插件叫什么 只有openh264dec ?
Screenshot from 2023-03-16 15-21-23.png

@george
上面那个命令末尾添加sync=false 就正常了

@大法师 Hi again, can you please check in a basic README to that fedora repo? I am not able to fork it because there are no commits.

@sushruth The 6. x kernel version has been processed internally and is expected to be released in the second quarter.Thank you for your support.

the good news is that the 20230303 download has solved the pip3 install problem and i was able to install opencv as well. It is running on a usb stick at the moment. should this issue be closed?

2)the format commands are not working as shown:

ubuntu@coolpi:~$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 1 0B 0 disk
sdb 8:16 1 0B 0 disk
mmcblk0 179:0 0 58.2G 0 disk
├─mmcblk0p1 179:1 0 300M 0 part /boot/firmware
└─mmcblk0p2 179:2 0 57.9G 0 part /
mmcblk0boot0 179:32 0 4M 1 disk
mmcblk0boot1 179:64 0 4M 1 disk
zram0 254:0 0 0B 0 disk

the tf chip is sda and sdb upon insertion via a usb adapter. the coolpi does not recognized the chip via the onboard tf card slot.

ubuntu@coolpi:~$ sudo wipefs /dev/sda
ubuntu@coolpi:~$ sudo wipefs /dev/sdb
ubuntu@coolpi:~$ sudo wipefs -a -f /dev/sda
ubuntu@coolpi:~$ sudo wipefs -a -f /dev/sdb
ubuntu@coolpi:~$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 1 0B 0 disk
sdb 8:16 1 0B 0 disk
mmcblk0 179:0 0 58.2G 0 disk
├─mmcblk0p1 179:1 0 300M 0 part /boot/firmware
└─mmcblk0p2 179:2 0 57.9G 0 part /
mmcblk0boot0 179:32 0 4M 1 disk
mmcblk0boot1 179:64 0 4M 1 disk
zram0 254:0 0 0B 0 disk

@jugg 这个建议不错，需要做这类的参考文档

最后换了阿里云的源 已经可以更新了
a66d0109-d72a-4290-80ec-9b3d98e7579c-image.png

@allen
示例操作更改标识
sudo e2label /dev/mmcblk0p2 emmc-rootfs

@george 有这样的文档已经很不错了 感谢

@george 好的，不过能稍微再具体点嘛，或者有相关的帖子嘛

@myhexb 联系一下代理商，申请售后。

@大法师 对，更新了之后也没变化，无法运行指运行相机相关程序时会报USB uvc相关的错误。

@ccjjww1222

Cool Pi 4 Model B用户手册V1.1.pdf

e7303cc9-0108-4906-bbcf-de6249d48181-1676012765810.png

@xws

有ubuntu 20.04 server版本

ae42e5c0-bdb1-4d63-bd3f-b52613339b04-1675905876822.png

@xws

刷机两种方式都支持，主板的pwr按钮是系统开机、关机键。（注意电源适配器使用5V/2A及以上）

https://www.cool-pi.com/topic/126/coolpi-4b-镜像固件离线刷机方法

528d2082-9916-4a63-94f1-3d0a264a94db-1675825279396.png

https://www.cool-pi.com/topic/127/coolpi-4b-镜像固件在线刷机方法

3883e729-1824-47b2-8c15-3e833139c804-1675825309559.png

Cool Pi 4 Model B用户手册V1.1.pdf

@顾真牛 @大法师 感谢你们的帮助🤓

@大法师 收到，大佬

@george
請教一下如果不用 grub ，在 arm 版本的 ubuntu 中通常會建議哪種方式調整？

@zhengbicheng said in 自动连接WIFI:

@ccjjww1222 您误会我的意思了，我的意思是你可以用电脑利用转接器连接Cool-pi开发板的串口。使用串口输入账号密码后就是命令行了。

他是想沿用树莓派预配置wifi信息，刷机自动连接wifi