WiFi does not work with IPv4

[britus]

Dear Staff

I installed the RockPi 4C with the image (- the 3rd image test): https://dl.radxa.com/rockpi/images/ubuntu/rockpi4c_ubuntu_focal_minimal_arm64_20200820_1207-gpt.img.gz

I can't connect to my RockPi 4C through WiFi IPv4. I got only IPv6 with the new system image but I use in my network IPv4 and I don't want to change this. Also there a lot of driver fails and log spam in the serial console, so it's hard to do anything there.

BTW: I also tested the Android 10 for RockPi 4c https://rock.sh/rockpi4c-android10-gpt-download with my RPI DSI display which working on RPI. The Download description shows 'DSI 480P: Canvas size 480800 Support Raspberry Pi official 7" Display' but the screen leave black and off. In the log through serial console shows some errors in the dw-drm-mipi-dsi layer. Some OF(DTS) properties/phandles not found i.e. 'rockchip,grf'. It seems to be incomplete buggy DTS binding or dw--drm implementation.

I'm frustrated with the HW/OS I bought:
I would be very happy about a production-ready 'consumer'-compatible operating system. I finally want to finish my project without operating system development or kernel error analysis. After all, I bought hardware for cash on the assumption, as described on the website, that it works with the connections listed. Of course, this also includes a functioning operating system, as is generally the case.

LOG ---------------------------------------

[ 4.037632] cdn-dp fec00000.dp: Direct firmware load for rockchip/dptx.bin failed with error -2
[ 4.209574] rk3x-i2c ff110000.i2c: timeout, ipd: 0x00, state: 1
[ 5.213575] rk3x-i2c ff110000.i2c: timeout, ipd: 0x00, state: 1
[ 6.041658] cdn-dp fec00000.dp: Direct firmware load for rockchip/dptx.bin failed with error -2
[ 6.213573] rk3x-i2c ff110000.i2c: timeout, ipd: 0x00, state: 1
[ 7.217576] rk3x-i2c ff110000.i2c: timeout, ipd: 0x00, state: 1
[ 8.217574] rk3x-i2c ff110000.i2c: timeout, ipd: 0x00, state: 1
[ 9.253583] rk3x-i2c ff110000.i2c: timeout, ipd: 0x00, state: 1
[ 10.045616] cdn-dp fec00000.dp: Direct firmware load for rockchip/dptx.bin failed with error -2
[ 10.253577] rk3x-i2c ff110000.i2c: timeout, ipd: 0x00, state: 1
[ 11.253576] rk3x-i2c ff110000.i2c: timeout, ipd: 0x00, state: 1
[ 12.253582] rk3x-i2c ff110000.i2c: timeout, ipd: 0x00, state: 1
root@rockpi4c:~# [ 5491.165276] rk3x-i2c ff110000.i2c: timeout, ipd: 0x00, state: 1
[ 5492.165273] rk3x-i2c ff110000.i2c: timeout, ipd: 0x00, state: 1
[ 5493.165536] rk3x-i2c ff110000.i2c: timeout, ipd: 0x00, state: 1
[ 5494.165571] rk3x-i2c ff110000.i2c: timeout, ipd: 0x00, state: 1
[ 5495.165547] rk3x-i2c ff110000.i2c: timeout, ipd: 0x00, state: 1
ifconf[ 5496.165320] rk3x-i2c ff110000.i2c: timeout, ipd: 0x00, state: 1
ig -a[ 5497.165541] rk3x-i2c ff110000.i2c: timeout, ipd: 0x00, state: 1

eth0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether ae:1c:6a:88:a1:0b txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 24

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 1 (Local Loopback)
RX packets 178 bytes 14670 (14.6 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 178 bytes 14670 (14.6 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::8525:217b:cdd9:5080 prefixlen 64 scopeid 0x20
inet6 fe80::2a80:49be:dd69:2b9c prefixlen 64 scopeid 0x20
ether 6c:21:a2:41:b9:52 txqueuelen 1000 (Ethernet)
RX packets 131 bytes 12044 (12.0 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 277 bytes 39965 (39.9 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

root@rockpi4c:~# [ 5498.165318] rk3x-i2c ff110000.i2c: timeout, ipd: 0x00, state: 1