Should be labeled as Intel Driver problem, but for some reason it won't let me tag labels
Same issue here.
Video Card:
Driver: Intel Open Source Technology Center Mesa DRI Intel(R) Sandybridge Mobile x86/MMX/SSE2
Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
We're aware of this problem and are discussing it with Intel. It doesn't happen on HD4000 so we think it is a driver bug. Still investigating.
Probably duplicate of https://github.com/ValveSoftware/steam-for-linux/issues/127
I'm having this issue, HD 3000 with Mesa 9.0.1. (3.6.10 kernel)
@nhydock GL_QUADS are deprecated since OpenGL 3, modern GPUs only work with triangles to begin with so it was cut. The problem is likely some driver bug or a state error (since it looks like depth fighting I imagine the driver is doing something silly).
I'm currently testing out Steam for Linux on my HP Laptop. It sports an i3 with an HD 3000 graphics chip. I noticed when running Big Picture Mode, all the buttons that are textured will usually have half of the texture missing. I've encountered things like this before while doing graphics programming.
More than likely I'm assuming what's being used is the old practice of using two tris or a triangle strip to render a plane. While it works, I personally feel that GUI stuff is a whole lot better to manage, render, and has less problems on more hardware for texturing like this is to use GL_QUADS instead of GL_TRIANGLE_STRIP.
There are several others reporting the same issue in this thread http://steamcommunity.com/app/221410/discussions/6/846939071111334107/