No video on 6.8 kernel and edge image

[VaRusLAN]

I installed latest vendor image and because of the wifi issues I switched to the edge kernel. I messed up my fstab, couldn't connect with ssh, so I plugged it to my monitor and a keyboard, but there was no video. Eventually, I fixed it by booting vendor image from my sd card, but I got curious.

I know, that vendor image just works, so I flashed edge image to my sd card to see what's wrong. The monitor recognizes the presence of the board, but it's just a black screen. I can ssh to the board, so the image definitely booted, but there's just no video.

Here's the log from my original installation. I kept 6.8 kernel because the video is not important to me.

 

[Hqnicolas]

51 minutes ago, VaRusLAN said:

but there's just no video.

I think you need to check VOP config over DTS
 

 

[ 7.670534] rockchip-drm display-subsystem: [drm] Cannot find any crtc or sizes
[ 7.670617] rockchip-drm display-subsystem: [drm] Cannot find any crtc or sizes
[ 7.670647] rockchip-drm display-subsystem: [drm] Cannot find any crtc or sizes

[ 8.064408] rockchip-dmc dmc: failed to get vop bandwidth to dmc rate
[ 8.064415] rockchip-dmc dmc: failed to get vop pn to msch rl

 

Edited May 30 by Hqnicolas

[ricardo_brz]

On 5/30/2024 at 10:19 AM, VaRusLAN said:

there was no video

Which HDMI port did you connect? I was testing it today and it only showed some video in the midle HDMI port. 

 

One thing I noticed is that it's still not working with Ultra Wide monitors. I was able to work with it in 1080p, but not in 2k@21x9. 

[Hqnicolas]

7 hours ago, ricardo_brz said:

I was testing it today and it only showed some video in the midle HDMI port.

I dont have this board, but i think you can check your vp routing and vop
 

&vp0 {
	rockchip,plane-mask = <(1 << ROCKCHIP_VOP2_CLUSTER0 | 1 << ROCKCHIP_VOP2_ESMART0 | 1 <<
	ROCKCHIP_VOP2_SMART0 | 1 << ROCKCHIP_VOP2_CLUSTER1 | 1 << ROCKCHIP_VOP2_ESMART1 | 1 <<
	ROCKCHIP_VOP2_SMART1)>;
	rockchip,primary-plane = <ROCKCHIP_VOP2_SMART0>;
};

 

&hdmi_in_vp0 {
	status = "okay";
};

&hdmi_in_vp1 {
	status = "okay";
};

 

[VaRusLAN]

8 часов назад, ricardo_brz сказал:

I was able to work with it in 1080p, but not in 2k@21x9.

Huh, I actually tested it with 2k@21x9 monitor. Never thought that would be a problem. And I tried both HDMI 1 and 2.

I think I'm going to stay with 6.1 kernel for a while 

[VaRusLAN]

1 час назад, Hqnicolas сказал:

&hdmi_in_vp0 {
	status = "okay";
};

&hdmi_in_vp1 {
	status = "okay";
};

Interesting. I wanted to decompile dtb's for 6.1 and 6.8, but then I found an overlay called orangepi-5-plus-hdmi2-8k.dtbo (2k!) for the 6.1 kernel, but not for the 6.8 kernel. And this overlay in linux-orangepi vendor repo indeed just enables hdmi nodes. I guess I just need to add this overlay to 6.8 and see if it works.

 

rk3588-orangepi-5-plus 6.1.dts rk3588-orangepi-5-plus 6.8.dts orangepi-5-plus-hdmi2-8k.dtso

[ricardo_brz]

On 6/1/2024 at 2:32 AM, VaRusLAN said:

I guess I just need to add this overlay to 6.8 and see if it works.

 

Did you get any luck with this? I tried adding the files to /boot/overlay-user/ and set the user_overlays in armbianEnv.txt but I didn't succeeded.

 

I followed this guide: https://docs.armbian.com/User-Guide_Armbian_overlays/

[VaRusLAN]

15 часов назад, ricardo_brz сказал:

Did you get any luck with this? I tried adding the files to /boot/overlay-user/ and set the user_overlays in armbianEnv.txt but I didn't succeeded.

Sorry, I haven't got time to tinker with it. I'm staying with vendor kernel and trying to get nextcloud running, so 6.8 is not a priority for me now.

I don't think it's possible to just add this overlay at boot time. I wanted to recompile the kernel with modified dts and then include this overlay. Why I think it's necessery is because of the __symbols__ node in decompiled versions of dtb's.

 

6.1

		dp0_in_vp1 = "/dp@fde50000/ports/port@0/endpoint@1";
		dp0_in_vp2 = "/dp@fde50000/ports/port@0/endpoint@2";
		dp0_out = "/dp@fde50000/ports/port@1/endpoint";
		hdcp1 = "/hdcp@fde70000";
		hdmi0 = "/hdmi@fde80000";
		hdmi0_in = "/hdmi@fde80000/ports/port@0";
		hdmi0_in_vp0 = "/hdmi@fde80000/ports/port@0/endpoint@0";
		hdmi0_in_vp1 = "/hdmi@fde80000/ports/port@0/endpoint@1";
		hdmi0_in_vp2 = "/hdmi@fde80000/ports/port@0/endpoint@2";
		edp0 = "/edp@fdec0000";
		edp0_in_vp0 = "/edp@fdec0000/ports/port@0/endpoint@0";
		edp0_in_vp1 = "/edp@fdec0000/ports/port@0/endpoint@1";
		edp0_in_vp2 = "/edp@fdec0000/ports/port@0/endpoint@2";

 

		dp1 = "/dp@fde60000";
		dp1_in_vp0 = "/dp@fde60000/ports/port@0/endpoint@0";
		dp1_in_vp1 = "/dp@fde60000/ports/port@0/endpoint@1";
		dp1_in_vp2 = "/dp@fde60000/ports/port@0/endpoint@2";
		dp1_out = "/dp@fde60000/ports/port@1/endpoint";
		hdmi1 = "/hdmi@fdea0000";
		hdmi1_in = "/hdmi@fdea0000/ports/port@0";
		hdmi1_in_vp0 = "/hdmi@fdea0000/ports/port@0/endpoint@0";
		hdmi1_in_vp1 = "/hdmi@fdea0000/ports/port@0/endpoint@1";
		hdmi1_in_vp2 = "/hdmi@fdea0000/ports/port@0/endpoint@2";
		edp1 = "/edp@fded0000";
		edp1_in_vp0 = "/edp@fded0000/ports/port@0/endpoint@0";
		edp1_in_vp1 = "/edp@fded0000/ports/port@0/endpoint@1";
		edp1_in_vp2 = "/edp@fded0000/ports/port@0/endpoint@2";

6.8

		sys_grf = "/syscon@fd58c000";
		hdptxphy0_grf = "/syscon@fd5e0000";
		hdmi0 = "/hdmi@fde80000";
		hdmi0_in = "/hdmi@fde80000/ports/port@0";
		hdmi0_in_vp0 = "/hdmi@fde80000/ports/port@0/endpoint";
		hdmi0_out = "/hdmi@fde80000/ports/port@1";
		hdmi0_out_con = "/hdmi@fde80000/ports/port@1/endpoint";
		vop_grf = "/syscon@fd5a4000";
		vo0_grf = "/syscon@fd5a6000";
		vo1_grf = "/syscon@fd5a8000";
		usb_grf = "/syscon@fd5ac000";

And overlay patches

	__fixups__ {
		hdmi0_in_vp0 = "/fragment@0:target:0";
		hdmi0_in_vp1 = "/fragment@1:target:0";
		hdmi1_in_vp0 = "/fragment@2:target:0";
		hdmi1_in_vp1 = "/fragment@3:target:0";
	};

 

6.8 does not even have hdm1* nodes, so we either need to somehow change the overlay or modify dts and rebuild kernel