SydeLink Posted December 23, 2020 Share Posted December 23, 2020 Good day, I'm looking for help adding touchscreen support to the ROCKPI 4 Legacy Kernel and correct screen configuration settings. Im new to SBC development so I'm still learning the build system. I have taken the time to track down, what I believe, are the commits to add basic support for the "Raspberry Pi 7" Touchscreen" to the kernel. I believe their will be changes needed to rootfs so that the display manager recognizes it and sets it up properly. ARMBIAN_BUILD_BRANCH: Legacy Kernel --> https://github.com/ayufan-rock64/linux-kernel/tree/release-4.4.202 RADXA_BUILD_BRANCH: Kernel --> https://github.com/radxa/kernel/releases/tag/4.4.154-110-rockchip MY_BUILD_BRANCH: Armbian Legacy Kernel --> https://github.com/SydeLink/linux-kernel/commits/sL-armbian-radxa These are the commits I've cherry picked from Radxa's Kernel 97f1fae7dcaea5712ae69d239016251090242bcd //Overlay a9e01ea73ca3a5e3e25d78cb3725ced3f3c3c8ca //Driver 29beb4f7264afcc6bb60672e06e1f8b727903eb4 //Driver de225d96bb00b0b187f930df3c077fd172b9255f //Driver It builds successfully. I've installed to device. It now boots to black screen. I believe its now picking up the screen but no longer knows what to output to. I remember seeing some commits to add fallback to x11 for this issue but cant remember where. I'm pausing at this point for the evening. Hope this helps others :D 0 Quote Link to comment Share on other sites More sharing options...
JMCC Posted December 23, 2020 Share Posted December 23, 2020 Good day, I'm looking for help adding touchscreen support to the ROCKPI 4 Legacy Kernel and correct screen configuration settings. Im new to SBC development so I'm still learning the build system. I have taken the time to track down, what I believe, are the commits to add basic support for the "Raspberry Pi 7" Touchscreen" to the kernel. I believe their will be changes needed to rootfs so that the display manager recognizes it and sets it up properly. ARMBIAN_BUILD_BRANCH: Legacy Kernel --> https://github.com/ayufan-rock64/linux-kernel/tree/release-4.4.202 RADXA_BUILD_BRANCH: Kernel --> https://github.com/radxa/kernel/releases/tag/4.4.154-110-rockchip MY_BUILD_BRANCH: Armbian Legacy Kernel --> https://github.com/SydeLink/linux-kernel/commits/sL-armbian-radxa These are the commits I've cherry picked from Radxa's Kernel 97f1fae7dcaea5712ae69d239016251090242bcd //Overlay a9e01ea73ca3a5e3e25d78cb3725ced3f3c3c8ca //Driver 29beb4f7264afcc6bb60672e06e1f8b727903eb4 //Driver de225d96bb00b0b187f930df3c077fd172b9255f //Driver It builds successfully. I've installed to device. It now boots to black screen. I believe its now picking up the screen but no longer knows what to output to. I remember seeing some commits to add fallback to x11 for this issue but cant remember where. I'm pausing at this point for the evening. Hope this helps others IIRC, we have working RPi touchscreen for the Tinkerboard. You can search the commits for it, and see if you are missing anythingEnviado desde mi moto g(6) plus mediante Tapatalk 0 Quote Link to comment Share on other sites More sharing options...
SydeLink Posted December 23, 2020 Author Share Posted December 23, 2020 31 minutes ago, JMCC said: IIRC, we have working RPi touchscreen for the Tinkerboard. You can search the commits for it, and see if you are missing anything Enviado desde mi moto g(6) plus mediante Tapatalk For those following along: https://github.com/armbian/build/search?q=RPi+touchscreen&type=commits 0 Quote Link to comment Share on other sites More sharing options...
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