From: "Michael Brown" <mcb30@ipxe.org>
To: devel@edk2.groups.io, alibanejad1376@gmail.com, "Paul,
Bill" <Bill.Paul@windriver.com>
Subject: Re: [edk2-devel] Graphic Output on qemu
Date: Wed, 8 Feb 2023 09:06:05 +0000 [thread overview]
Message-ID: <0102018630466504-2ff97024-e158-48ea-9ea5-cc1e11d20bcc-000000@eu-west-1.amazonses.com> (raw)
In-Reply-To: <CADH3hnK-YsgNQKjzR_yUm=D0dbOG=md2SJjGB_kvEeeUhg4Z+Q@mail.gmail.com>
On 08/02/2023 08:03, Alireza Banejad wrote:
> Below is how I use the HandleProtocol function:
>
> Status = gBS->HandleProtocol (
> gST->ConsoleOutHandle,
> &gEfiGraphicsOutputProtocolGuid,
> (VOID **)&GraphicsOutput
> );
You are querying only the ConsoleOutHandle, which is not necessarily
where the GOP will be installed.
Use LocateProtocol() to find the protocol instance instead:
Status = gBS->LocateProtocol(&gEfiGraphicsOutputProtocolGuid, NULL,
(VOID **)&GraphicsOutput);
HTH,
Michael
next prev parent reply other threads:[~2023-02-08 9:06 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-07 10:22 Graphic Output on qemu Alireza Banejad
2023-02-07 19:55 ` [edk2-devel] " Paul, Bill
2023-02-08 8:03 ` Alireza Banejad
2023-02-08 9:06 ` Michael Brown [this message]
2023-02-08 9:55 ` Alireza Banejad
2023-02-08 10:00 ` Michael Brown
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