Hi, > > It's not possible to do page flip with this virtual device. The call to > > SYNTHVID_VRAM_LOCATION is only honoured once. So unfortunately need to > > use SHMEM helpers. > > I was thinking about using struct video_output_situation.vram_offset; in > case you want to tinker with that. There's a comment in the patch that > vram_offset should always be 0. But this comment seems incorrect for devices > with more than one output. Where does the comment come from? fbdev drivers support a single framebuffer only so for a fbdev driver it makes sense to set the offset to 0 unconditionally. With drm you probably can handle things differently ... take care, Gerd
