
Remontoir
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Posts posted by Remontoir
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Note: I've been told the above is not the serial number but the PPID (Piece Part Identification).
The file /sys/firmware/devicetree/base/chosen/bootargs shows (uboot args) :
sdwupdate storagemedia=sd androidboot.storagemedia=sd (...) androidboot.serialno=c3d9b8674f4b94f6
The serial number in the boot arguments is the same than the one in /sys/firmware/devicetree/base/serial-number
Question : where does this "serial number" comes from ? In the uboot code as a default value ?
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Well, the answer is :
https://github.com/TinkerBoard/TinkerBoard/wiki/Developer-Guide#how-to-get-the-sn
Not the same number which is on the box's sticker but it will do.
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We made disk-images of a modified TinkerOS for mass deployement. This is for a Tinkerboard S R2.0.
I need the serial-number to identify the device. I read
/sys/firmware/devicetree/base/serial-number
The problem is that I got the exact same serial for a duplicated image on another device !
Also it's not the same as the one on the product box.How can I get the "real" serial using TinkerOS 3.0.11, ideally the serial which is on the box sticker ?
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It's to run an electron app. I managed to make it run with some flags passed to chromium ( something like '--use-gl=egl' ).
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So: someone said this on the now dead tinkerboarding.co.uk :
QuoteThis error message is caused by the userspace application try to use the OpenGL API.
However, Tinker Board can only support OpenGL ES but not OpenGL API.
So you need to use the OpenGL-ES API instead of OpenGL.Also, the missing file should be in libgl1-mesa-dri
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Well, adding the same parameters to electron as the one used in /usr/lib/chromium/chromium-wrapper, I can see an improvement.
GPU usage is now registering in 'tinker-power-management', but GPU usage is still around 50% for a FHD video.
The error in the post above is still present.
Here are the aforementioned flags :
--use-gl=egl --no-sandbox --gpu-sandbox-start-early --enable-accelerated-video-decode --ignore-gpu-blacklist --ignore-gpu-blocklist
AFAII, it's using some userland drivers/decoders for the mali chip ?
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Using Tinker Board S R2.0 Debian 10 V3.0.11
No video acceleration.Xorg log :
[ 1941.779] (EE) AIGLX error: dlopen of /usr/lib/arm-linux-gnueabihf/dri/rockchip_dri.so failed (/usr/lib/arm-linux-gnueabihf/dri/rockchip_dri.so: cannot open shared object file: No such file or directory)
inxi :
Graphics: Device-1: display-subsystem driver: rockchip_drm v: N/A Device-2: rk3288-dw-hdmi driver: dwhdmi_rockchip v: N/A Device-3: malit764 driver: mali v: N/A Display: tty server: X.Org 1.20.4 driver: modesetting resolution: 1920x1080~60Hz OpenGL: renderer: llvmpipe (LLVM 7.0 128 bits) v: 3.3 Mesa 18.3.6
Tinker board R2.0 audio problem - hissing, noise
in General Discussion
Posted
We do have exactly the same issue: while using the jack output, some (we have dozen of then in the wild ) Tinkerboard S R.20 are randomly and suddenly (can be hours or days) outputing a white noise sound.
We are also using the last TinkerOS linux release (based on debian 10.10).
When the problem arises, there is absolutely nothing in the logs.
When using a digital output ( either bluetooth or HDMI ) there's no such problem.
Maybe a problem related to the DAC ?