Hi Alexey, Am Freitag, den 24.11.2017, 16:02 +0000 schrieb Alexey Brodkin: > Hello, > > Being in the middle of bring-up of the new board with Vivante GPU (HSDK namely, > see?https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arc/plat-hsdk) > I was looking at simple 3D test apps to see how Etnaviv works on the hardware. > > So far I was able to get kmscube working perfectly fine and the next item I took > was glxgears (for some reason I was under impression that's de facto "Hello world" app > in the GPU world). But apparently even with Xserver up and running glxgears doesn't work. > > Moreover I tried the same thing on Wandboard Quad but to no avail as well. > That's what I saw: > ------------------------->8--------------------- > # glxgears > Error: couldn't get an RGB, Double-buffered visual > > # glxinfo > name of display: :0 > Error: couldn't find RGB GLX visual or fbconfig? > ------------------------->8--------------------- > > Googling didn't help here unfortunately so maybe some pointers could be > suggested here... like what do I do wrong and if glxgears is supposed to > work on top of DRM GPU at all? > > Thanks a lot in advance! For 3D acceleration to work under X you need the etnaviv specific DDX driver, which can be found here: http://git.arm.linux.org.uk/cgit/xf86-video-armada.git/log/?h=unstable-devel Don't let you get confused by the name, the armada driver implements support for both armada drm and imx-drm and the etnaviv DDX. This provides 2D acceleration on the Vivante 2D cores, as well a the DRI2/3 bit necessary to get a 3D context on X. Regards, Lucas
