A3.5 Mobile PC Client - FAQs

A3.5.1 Current general FAQs
See http://www.microsoft.com/winlogo/hardware/system/.
A3.5.2 Manageability requirements [Clarification]
Current SMBIOS requirements are defined in A1.1.4.
FAQ Date: May 4, 2000
A3.5.3 BIOS support of external pointing device [Clarification]
[MOBL-0066]
The required default BIOS option is to provide an option to disable the internal pointing device when any external PS/2-type pointing device is detected at startup. In this case, the driver for the internal pointing device must not load.
FAQ date: October 7, 1998
A3.5.4 DDC monitor detection [Clarification]
[GRPH-0393.6]
Because of the power limitations placed on mobile computers, they are not required to supply + 5V power via the external graphics adapter as is currently required by the VESA DDC specification.
Some display devices rely on the +5 V to power their DDC circuitry, for Plug and Play detection, or both. It is recommended that a mobile PC provide a means to enable the +5 V power when necessary.
FAQ date: March 19, 1999
A3.5.5 ICC profile for mobile PCs [Clarification]
Current requirements are defined at B4.2.4.2; design guidelines are provided in PC 2001. [MON-0235]
A3.5.7 BIOS support for PXE [Clarification]
[BIOS-0014.1]
Current requirements are defined in A1.1.4.
A3.5.8 Battery power requirements [Clarification]
Every device in a mobile PC system should function fully on both AC and DC power. It is not acceptable for hardware or system firmware to autonomously disable, remove, or force power down of devices on an AC > DC transition. This can cause situations that result in the system shutting down, lost data, operating system failure of subsequent power management events, or at the least, warning messages displayed to the user. Internal devices must only be powered down, disabled, or removed when commanded to do so by the operating system and device drivers in accordance with bus and device power management specifications.
This clarification does not require port replicators or docking stations to operate on battery power.
FAQ date: May 28, 1999
A3.5.9 Docking station/mobile audio [Clarification]
It is not required that a mobile/docking station pair implement audio. The following provides a clarification to the requirement:
The user must be able to select speakers in the mobile unit or the docking station. System vendors can choose to automate the process either in the docking station or the mobile PC to meet this requirement. For example, instead of offering a UI where the user can select speakers, the system manufacturer can configure the pair to automatically turn on the docking station speakers and turn off the mobile PC speakers when in the docked configuration.
This requirement is defined to ensure that users can access the highest quality audio output in any given configuration. If speakers are selected automatically, the vendor should prevent multiple outputs from occurring simultaneously. If speakers are not selected automatically, then a manual selection process must be offered to the user. Additionally, the speakers should be switched off if the headphone or line-out jacks are used.
FAQ date: December 22, 1998
A3.5.10 DELETED
FAQ date: January 31, 2001
A3.5.11 Docking Station and Port Replicator Definitions [Clarification]
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