Deeping Inside Tegra 3 T30l Hard Part

01 Feb 2023 - Nvidia Tegra

This is hard part about Tegra 3 T30L, which I found out, I talked about SoC but everyone around did not understand. When I used Nexus 7 2012 tablet like my daily driver device. I found it not a tablet, because Nvidia combine ULP Geforce into it, GPU was PC/laptop low voltage version.

Grate driver community support it, run GNU/Linux systemd, AlpineLinux openrc. It could 3d accelarate with drm on Xorg, so I install Ubuntu/ArchLinux ARM, but it’s always overheat and auto poweroff. I used temp-throttle but it still usually poweroff, I researched and I saw temp-throttle not get cpu-thermal sensor right. I wrote more codes for temp-throttle to go right way. Basically, I touch this folder

...

/sys/class/thermal/thermal_zone*/type

...

Those types will changed order on every boot. So I checked all by for..do getting ‘cpu-thermal’ type Taking all I/O and sysctl.conf from LineageOS 7.1.2, suck Android Lolipop 5.1.1 stock from Google

This is Nexus 7 run Ubuntu MATE desktop armv7hf
Nexus 7 2012 grouper run Ubuntu MATE desktop armv7hf

The tablet run GNU/Linux distros fine now. I’m using to wrote my github.io blog. DE: i3gaps, MATE. Tools: jekyll, git, vim, nano  

 

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