On Thu, Nov 28, 2019 at 12:42:43PM +0100, Gerd Hoffmann wrote:
> Add some notes about fetching the EDID information.
>
> Signed-off-by: Gerd Hoffmann
As a minor nit, it is preferable to send spec patches on virtio-comment.
virtio-dev is for code patches (implementation development).
> ---
> virtio-gpu.tex | 13 +
> 1 file changed, 9 insertions(+), 4 deletions(-)
>
> diff --git a/virtio-gpu.tex b/virtio-gpu.tex
> index af4ca610d235..15dbf9f2ec82 100644
> --- a/virtio-gpu.tex
> +++ b/virtio-gpu.tex
> @@ -70,16 +70,21 @@ \subsubsection{Events}
> \begin{description}
> \item[VIRTIO_GPU_EVENT_DISPLAY] Display configuration has changed.
>The driver SHOULD use the VIRTIO_GPU_CMD_GET_DISPLAY_INFO command to
> - fetch the information from the device.
> + fetch the information from the device. In case EDID support is
> + negotiated (VIRTIO_GPU_F_EDID feature flag) the device SHOULD also
> + fetch the updated EDID blobs using the VIRTIO_GPU_CMD_GET_EDID
> + command.
> \end{description}
>
> \devicenormative{\subsection}{Device Initialization}{Device Types / GPU
> Device / Device Initialization}
>
> The driver SHOULD query the display information from the device using
> the VIRTIO_GPU_CMD_GET_DISPLAY_INFO command and use that information
> -for the initial scanout setup. In case no information is available or
> -all displays are disabled the driver MAY choose to use a fallback,
> -such as 1024x768 at display 0.
> +for the initial scanout setup. In case EDID support is negotiated
> +(VIRTIO_GPU_F_EDID feature flag) the device SHOULD also fetch the EDID
> +information using the VIRTIO_GPU_CMD_GET_EDID command. If no
> +information is available or all displays are disabled the driver MAY
> +choose to use a fallback, such as 1024x768 at display 0.
>
> \subsection{Device Operation}\label{sec:Device Types / GPU Device / Device
> Operation}
>
> --
> 2.18.1
>
>
> -
> To unsubscribe, e-mail: virtio-dev-unsubscr...@lists.oasis-open.org
> For additional commands, e-mail: virtio-dev-h...@lists.oasis-open.org
-
To unsubscribe, e-mail: virtio-dev-unsubscr...@lists.oasis-open.org
For additional commands, e-mail: virtio-dev-h...@lists.oasis-open.org
