[Spice-devel] [PATCH qxl-wddm-dod v2 2/2] Call "DxgkCbAcquirePostDisplayOwnership" when changing Power State to D0

[Frediano Ziglio]

> 
> Starting with Windows Display Driver Model (WDDM) 1.2, if the
> DevicePowerState parameter is set to PowerDeviceD0, the display miniport
> driver should call DxgkCbAcquirePostDisplayOwnership to query the
> information about the display mode.
> 
> This patch fixies this bug:
> https://bugzilla.redhat.com/show_bug.cgi?id=1202267
> 
> Signed-off-by: Sameeh Jubran <sameeh at daynix.com>

Acked-by: Frediano Ziglio <fziglio at redhat.com>

> ---
>  qxldod/QxlDod.cpp | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/qxldod/QxlDod.cpp b/qxldod/QxlDod.cpp
> index 5b42731..eb88744 100755
> --- a/qxldod/QxlDod.cpp
> +++ b/qxldod/QxlDod.cpp
> @@ -2614,7 +2614,10 @@ NTSTATUS VgaDevice::SetPowerState(_In_
> DEVICE_POWER_STATE DevicePowerState, DXG
>      switch (DevicePowerState)
>      {
>          case PowerDeviceUnspecified:
> -        case PowerDeviceD0: regs.Ebx |= 0x1; break;
> +        case PowerDeviceD0:
> +            regs.Ebx |= 0x1;
> +            AcquireDisplayInfo(*(pDispInfo));
> +            break;
>          case PowerDeviceD1:
>          case PowerDeviceD2:
>          case PowerDeviceD3: regs.Ebx |= 0x400; break;

Frediano