There should be platform has terminal console by serial, but has no VIDEO.
Thanks, Star -----Original Message----- From: edk2-devel [mailto:edk2-devel-boun...@lists.01.org] On Behalf Of Leif Lindholm Sent: Thursday, September 14, 2017 5:21 PM To: Evan Lloyd <evan.ll...@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieral...@arm.com>; Dong, Eric <eric.d...@intel.com>; Ard Biesheuvel <ard.biesheu...@linaro.org>; Marc Zyngier <marc.zyng...@arm.com>; Catalin Marinas <catalin.mari...@arm.com>; edk2-devel (edk2-devel@lists.01.org) <edk2-devel@lists.01.org>; linaro-a...@lists.linaro.org; Stephanie Hughes-Fitt <stephanie.hughes-f...@arm.com>; Sudeep Holla <sudeep.ho...@arm.com>; Dong Wei <dong....@arm.com>; Zeng, Star <star.z...@intel.com> 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 edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
