I'm getting a bunch of errors in dmesg (20-22 lines) while starting playback and a few such errors during playback: ... [ 6600.658148] vc_sm_cma_import_dmabuf_internal: Expecting an uncached alias for dma_addr 0x4ab00000 [ 6600.680280] vc_sm_cma_import_dmabuf_internal: Expecting an uncached alias fo...

I'd like to do offscreen rendering and processing using render buffer and EGL_IMAGE_BRCM_VCSM: GLuint buffer = 0; m_gl_funcs->glGenRenderbuffers(1, &buffer); m_gl_funcs->glBindRenderbuffer(GL_RENDERBUFFER, buffer); m_vcsm_info->width = m_vcsm_info->height = 2048; EGLImageKHR eglFbImage = eglCrea...

I'm building custom kernel and wanted to know if it's possible to place Device Tree and all overlays inside initramfs image.
Also is there any way to merge all overlays (using dtmerge ?) into single Device Tree on host machine (x86)?

Hi,

Is there any way of playing video using MMAL and display it using OpenGL ES in zero copy mode?

Here is interesting info about boot from secondary SD: ... If enabled: check secondary SD Success - Boot Fail - timeout (five seconds) ... The primary SD card boot mode is, as standard, set to be GPIOs 49-53. It is possible to boot from the secondary SD card on a second set of pins, i.e. to add a s...

Hello,

I couldn't find info on how to build minimal video player using MMAL.
The idea is to use MMAL container to parse mp4 stream and display it on screen (with something similar to OpenMAX's video_render).
Could you help me with some code examples?

Thanks.

I have the same question. Will it be possible to use secure boot? Is it even possible with this hardware? There is Secure Boot on the VC4 part :) Including encrypted suspend/resume RAM :mrgreen: However, I don't know if a blob verifying the Linux kernel signature is existing Could you explain it in...

I have the same question. Will it be possible to use secure boot?
Is it even possible with this hardware?

Hi, I'd like to use two regular HDMI monitors for my setup and DSI port perfectly fits for this role. I wonder is it possible to connect HDMI monitor using DSI-to-HDMI bridge (ADV7533) board and get correct picture on screen? Also can I expect 1080p picture resolution from such configuration or firm...

Hello,
What chip should I use to convert DPI to HDMI? I'd like to have two HDMI outputs.

Can I use VGA adapter that uses all GPIO pins for 24bit colour (VGA888) with current firmware?

Hi, I'd like to know if it is possible to render video via video_render component directly to DSI display?

Any updates on how to fix this behaviour?