Michel Dänzer <mic...@daenzer.net> writes: > On 2018-02-13 04:23 PM, Lukas F. Hartmann wrote: >> >> - Xwayland/glamor registers its gbm buffer with wl_drm_create_prime_buffer >> (passing a fd) which ends up in drm_create_prime_buffer on the server side. >> I might have made mistakes, but when mapping the gbm_bo on that side (using >> gbm_bo_import and then gbm_map_bo), it appears that the buffer is empty >> (maybe it cannot be transferred correctly?). > > Unless there's a dma-buf API usage mistake in userspace, it sounds like > a kernel issue, since the two processes are seeing different contents in > what should be one and the same BO. > > Can you test Xorg with DRI3? Do OpenGL apps work correctly with that?
I just rebuilt Xorg and started it with a minimal modesetting conf: - with AccelMethod "none", I get a working/visible unaccelerated desktop, glxinfo showing softpipe - with AccelMethod "glamor", I get an invisible desktop (possibly same problem as in Xwayland). DRI3 is enabled which I confirmed by stepping with gdb through glamor_egl_screen_init. glxinfo shows "Vivante GC3000 rev 5450" and "Max compat profile version: 2.1.", glxgears has a high framerate. But I cannot see any of this output. Cheers Lukas _______________________________________________ email@example.com: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: https://lists.x.org/mailman/listinfo/xorg-devel