Clearly the information we have is either incomplete or inaccurate. The guilty PSU looks like this: https://www.xiaomitoday.com/wp-content/uploads/2017/04/Chuwi-Hi13-Unboxing-With-Detailed-First-Look.0007.jpg On other devices it does the following: Samsung S8 phone - charges at approx. 10W Powerban...

It used to work fine with USB-A 2.4A chargers, but now it doesn't.

I see, probably the tablet charger breaks the standard, as it can't lower it's voltage. So good PD chargers should work or at least won't kill it.
It's dead, because it doesn't work with other chargers either.

My Chinese tablet came with a Keyu 12V 2A Power Delivery compatible USB-C charger. I regularly use it to charge random devices like phones, power banks, and it works fine. I thought it can possible lower the voltage for incompatible devices since it's USB-C standard. When I connected it to my PI4 I ...

That's right. Putting the latest MESA in Raspbian will solve the problem.

The textures are fixed, if I call glVertexAttribPointer within the loop after each texture change. Is there a way to let the opengl driver makers know about this bug?

Hello, In my render loop I cycle through the textures used in the scene: for(int texi=0;texi<textureCount;texi++) { glBindTexture(GL_TEXTURE_2D, textures[texi]); glDrawElements(GL_TRIANGLES, ... ); } I'm getting wrong textures rendered in may batches unless I put a glFlush() in the loop, which makes...

After some research, I realized, the hardware can't do ES 3.0, or modern desktop OpenGL, so I'll just make an ES 2.0 version of the graphics for low-end HW.

Good news, the Tinker Board might support ES 3.0 (which is good for ray-traced spheres, texture stored transformation matrices and more)

Hi, I'm getting the following message from SDL_GetError() when CreateWindow fails: "SDL not configured with OpenGL/GLX" I ran configure --disable-video-opengles, but didn't help. What's the simplest practice for porting a game to the PI 3, that already works on Windows with SDL2 openGL and on mobile...

Thanks, I didn't know, the A8 was so expensive.

<t>The ARMv7  (Cortex-A8) with 1GHz appears in a lot of Android phones together with a good GPU.<br/> <br/> I don't know how much is the difference in cost to the ARMv6 (ARM11) which you are using, but probably marginal.You might even make a deal for co-production with a phone maker to save cost (I'...