Raspberry Pi 4 with PlasmaC

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09 Jun 2020 12:14 - 09 Jun 2020 12:16 #170823 by tecno
Replied by tecno on topic Raspberry Pi 4 with PlasmaC
Sorry no, followed your lead.

I must have, getting a bit confused now ;)
Last edit: 09 Jun 2020 12:16 by tecno.

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09 Jun 2020 12:27 #170825 by tecno
Replied by tecno on topic Raspberry Pi 4 with PlasmaC
tested your image - goes as far as earlier

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09 Jun 2020 12:28 #170826 by phillc54
:(

I will take a look tomorrow.

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09 Jun 2020 19:34 - 09 Jun 2020 19:54 #170853 by alkabal
Replied by alkabal on topic Raspberry Pi 4 with PlasmaC
Hi

Just tested your image today and start fine without any change

Thanks for sharing I fight with my rpi4 from 2 days.

Need to check for remove your NFS and i have a bug with the task bar which disappears regularly.
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Last edit: 09 Jun 2020 19:54 by alkabal.

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09 Jun 2020 21:02 - 09 Jun 2020 21:20 #170873 by alkabal
Replied by alkabal on topic Raspberry Pi 4 with PlasmaC
Unfortunately i does not understand what append now with my rpi4

I have destroyed my old debian trying to update bootloader for USB boot and killed the kernel, so i have backuped home dir, and try fresh debian... (using 7i96)

I have try many setup including your image, linuxcnc can start fine with my config, i can see the working endstop status but nothing move or react after command or jog. (only mdi display change)

I have 2 relay controlled by axis mist flood that does not work anymore, and any stepper move (enabled by default)

Maybe the bootloader is inconsistent i haven't any other idea right now, i'm saad.

Br
Last edit: 09 Jun 2020 21:20 by alkabal.

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10 Jun 2020 01:55 #170904 by phillc54
I have uploaded a new clean image.

buster-rt.img.gz

Username=pi Password=1234

Ethernet has static IP address of 10.10.10.5 set in /etc/dhcpcd.conf

I normally connect with WiFi and it still boots with my WiFi off so hopefully it will work.
If not try creating /boot/wpa_supplicant.conf on the SDCARD with the following: (change country to suit)
country=AU
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1

network={
    scan_ssid=1
    ssid="your_wifi_ssid"
    psk="your_wifi_password"
}
The following user(s) said Thank You: alkabal

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10 Jun 2020 07:32 - 10 Jun 2020 07:32 #170919 by tecno
Replied by tecno on topic Raspberry Pi 4 with PlasmaC
Good morning from Sweden,

Sorry to report that it is still not working. Tried two µSD cards one fast one slower.
Now I can see that the text is Login etc.. so it hangs on going over to graphical.

Cheers
Bengt
Last edit: 10 Jun 2020 07:32 by tecno. Reason: edit

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10 Jun 2020 07:41 #170920 by phillc54
Hmm, I would have assumed a Pi4 was a Pi4 and they would all boot from the same image. Maybe you could try editing /boot/config.txt and commenting out the two hdmi lines.

I have just mounted mine to a din rail clip and mounted it in my control panel.

I also edit out force-turbo in cinfig.txt and set isolcpus=2,3 in dmdline.txt. That doesn't increase latency too much but makes the graphics a little bit zippier.

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10 Jun 2020 08:06 - 10 Jun 2020 08:07 #170923 by tecno
Replied by tecno on topic Raspberry Pi 4 with PlasmaC
Sorry, still the same.

What does all these parameters and why is there a file *config.txtdtoverlay=pi3-disable-bt*
[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
dtoverlay=vc4-fkms-v3d
max_framebuffers=2
kernel=kernel7l-rt.img
# force_turbo=1
dtoverlay=disable-bt

[all]
dtoverlay=vc4-fkms-v3d
Last edit: 10 Jun 2020 08:07 by tecno.

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10 Jun 2020 08:14 #170925 by phillc54

Sorry, still the same.

What does all these parameters



these were there by default
[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
dtoverlay=vc4-fkms-v3d
max_framebuffers=2

this points to the RT kernel I built
kernel=kernel7l-rt.img

this keeps it in turbo mode
# force_turbo=1


this disables bluetooth
dtoverlay=disable-bt

these were there by default
[all]
dtoverlay=vc4-fkms-v3d

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