Re: Virtio-GPU Xres and Yres seettings

[Philippe Mathieu-Daudé]

Cc'ing Gerd & Marc-André.

On 12/20/21 05:26, Pratik Parvati wrote:
> Hi Team,
> 
> I am working on a Virtio-GPU device (backend) for one of our customer
> projects - we are using the Virtio-GPU driver (frontend) to drive our
> device. Our device code has been written using Qemu virtio-gpu device
> code as a reference. Our device is setting the resolution to 1024x768 as
> a response to the command received from the driver (i.e,
> VIRTIO_GPU_CMD_GET_DISPLAY_INFO) - I also verified that driver is
> receiving the response bytes properly, but the next
> command (i.e, VIRTIO_GPU_CMD_RESOURCE_CREATE_2D) that device receive has
> a width and height as 4096 and 2160 respectively. The driver is assuming
> a 4k display for some reason and I need your help to understand why this
> is happening.
> 
> Our display is corrupted for the same Xres and Yres misunderstanding
> between the device and the driver - Please guide me to understand the
> problem. Let me know if you have any questions or need more information.
> 
> Thanks & Regards,
> Pratik