krankes_etwas
-
Posts
7 -
Joined
-
Last visited
-
You`re running Kernel 6.1 ? Did you guys made any changes for the GPU/Driver/Resolution ? only with a forced resolution in the armbianenv I got videoutput in the CLI & bootime but as soon the xserver started I got no more video output or I got broken output :-S with kernel 5 I also got a BT issue & I also guess there is an issue with DTB, btw. GPU is disabled by default but easy to fix in the decompiled DTS file. unfortunately I couldn't follow these steps ...., but does make dtbs the same than compling a DTS to DTB ? Did you use any specific dts ? I'm a bit confused because I tried every DTS /DTB I found....
-
Faulty DTB for GPU & probably other issues for the Rock 4C+
krankes_etwas posted a topic in Rockchip
Hey guys, First of all I would like to let you know that the default DTB has an issue, the GPU status is disabled by default. I've changed this & now my GPU is detected & working fine so far. (Armbian Jammy current) But I'm also facing some other Issues.... not all USB Ports are working, just 2-3 & the working ports sometime are randomly switching after a reboot. Bluetooth isn't working at all I guess these Issues are also related to the dtb file because I didn't find any entries for BT in the DTB. I also tried the other DTB file: rk3399-rock-4c-plus but I dont have any video output with it but there I found some entries related to BT (default is rk3399-rock-pi-4c-plus) I also noticed I didn't get any Video output from the latest sid & edge, but Kernel was loaded. Then I forced the Resolution in the Armbian.env to 1080p, with that settings I got vidio ouput during the boot time & CLI. But as soon the Xserver has started I got no more Video output or I got a weird/broken video output. Probably its an gpu driver Issue.... I should also mention that my GPU isn't working & detected in Debian too (all kernels) But as I understood right the gpu isn't deactivated in the DTB file from Debian, but except the gpu everythings is working. Here are the Logs & DTS files Any ideas how to solve this ? -
another issue but I can confirm that all the rock 4c+ dtb's are probably faulty. With all of them with different OS & Kernel my GPU isn't detected but as soon I switch to 4C or 4B dtb my gpu is detected...... took a while to figure that out 😵 any ideas ?