There should be platform has terminal console by serial, but has no VIDEO.
Thanks, Star -----Original Message----- From: edk2-devel [mailto:[email protected]] On Behalf Of Leif Lindholm Sent: Thursday, September 14, 2017 5:21 PM To: Evan Lloyd <[email protected]> Cc: Lorenzo Pieralisi <[email protected]>; Dong, Eric <[email protected]>; Ard Biesheuvel <[email protected]>; Marc Zyngier <[email protected]>; Catalin Marinas <[email protected]>; edk2-devel ([email protected]) <[email protected]>; [email protected]; Stephanie Hughes-Fitt <[email protected]>; Sudeep Holla <[email protected]>; Dong Wei <[email protected]>; Zeng, Star <[email protected]> Subject: Re: [edk2] HEADLESS flag in ACPI + MdeModulePkg maintainers (GOP), linaro-acpi, Graeme, Ard. On Wed, Sep 13, 2017 at 12:23:01PM +0000, Evan Lloyd wrote: > We have a minor conundrum, and would like an element of consensus > before we make a commit. > We want to (re-)submit patches adding HDLCD/GOP for some ARM > platforms. > We have previously been asked to make this optional, as some people do > not want the overhead of GOP (and the frame buffer) in their > image/RAM. This is fine, and a build flag called HEADLESS would seem > to fit the bill. > > The query arises from the ACPI spec which has (in FADT): " > HEADLESS 1 12 System Type Attribute. If set indicates the system > cannot detect the monitor or keyboard / mouse devices." > > And what we need to confirm is that there is no case of a system with > no display still wanting to have keyboard and/or mouse. I can't > imagine there is, but thought it best to check. > > Any thoughts? I can't think of any. Even if your video is only accessible via BMC, that's still video. / Leif _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
