Talk:Tests/Suspend Resume

• copied the requirements over just for me own ease. --Chihyu 11:55, 11 January 2008 (EST)
• if a test case has been created for a requirement, the requirement will appear in strike.

Power Management Requirements (Current)

Most of the power management is behind the scene and should be invisible to the student.

The Power Management Table details what sections of the laptop are powered in different states. A more detailed description of the implementation is available at Hardware Power Domains.

Sleep Mode

Enter sleep mode via momentary press of power button:

• Screen goes blank
• Power LED blinks slowly
• Wireless continues to work (Wireless LEDS continue to work)
• Comes out of Sleep mode by pressing power button

Suspend

• After a short delay the screen dims
• After addition delay the processor suspends and the power LED blinks slowly
• Screen goes blank (not in update1)
• Wireless continues to work (wireless LEDS visible)
• Any key or the touchpad brings the laptop out of suspend; and is an active key (not lost)

Lid Close

• Closing the lid should go into 'Sleep Mode'
• Wireless should turn off (not in update1)

Suspend/Resume Button

The purpose of the 'suspend/resume' button on the laptop is to allow a child to leave the laptop open with the antenna up (and potentially having set up a good RF relay); and go into suspend with only the wireless on. The 'suspend' that happens is the same as that when the lid is closed, but that changes the RF characteristics quite a bit.

• PW4 Pushing the 'Suspend/Resume' button (previously the power button), will put the laptop into suspend mode, which includes Screen off.
  • PW4.1 In suspend mode, the laptop will continue to forward mesh networking packets if it is in the path between other mesh points (laptops, school servers).
  • PW4.2 Pushing the 'Suspend/Resume' button when the laptop is suspended will return it to powered on state with the same activities running as before it suspended.
  • PW4.3 Pressing any key on the keyboard, the mouse, directional keys or gamepad keys will also return the laptop to its full operational state. The button will not be acted upon.
• PW5 When the battery gets to its defined shut down level, whether in suspend mode or full operational mode, it will shut down gracefully, without data destruction.
• PW6 The student must be able to execute a full power down of the laptop from the Sugar home view.

Lid Closed

Whenever a student closes the lid, the laptop should go into suspend mode to save battery power. Wireless is still operational.

• PW7 When the lid is closed on the laptop, it will have the same affect as pushing the suspend/resume button (see Suspend/Resume Button).
• PW8 When the lid is opened, the laptop will resume (or, it may be necessary for the student to press a key or the suspend/resume button)

Ebook mode

Behind the scenes, reading should consume the least amount of power after 'suspend'. The student shouldn't notice anything when in ebook mode.

• PW9 A student can download a pdf file, and click on it. It will format and open for reading on the screen in low power mode. The screen brightness button can be used to reduce the power consumption even more.
• PW10 The student can convert the laptop to tablet mode and use the directional keys for scrolling through the text.
• PW11 If the student presses the rotate button, the screen will rotate 90 degrees. (This is in any mode, not just ebook mode !)
• PW12 In ebook mode, the screen may be turned off (see Screen Off) if there is no input activity for a fixed time period.

Power Management Requirements (Old)

Most of the power management is behind the scene and should be invisible to the student.

The Power Management Table details what sections of the laptop are powered in different states. A more detailed description of the implementation is available at Hardware Power Domains.

Screen off

*PW1 After X minutes of inactivity through keyboard, mouse, directional, or gamepad keys, the screen will turn completely off (black), unless a running activity has asked to inhibit this timeout.

• PW2 In this mode, the mesh network is working properly and can forward packets.

*PW3 The screen will turn back on at the press of any key on the keyboard, mouse, directional or gamepad keys. The back light will come back on to the level it was before the screen was turned off. The key press will not be acted upon.

Suspend/Resume Button

The purpose of the 'suspend/resume' button on the laptop is to allow a child to leave the laptop open with the antenna up (and potentially having set up a good RF relay); and go into suspend with only the wireless on. The 'suspend' that happens is the same as that when the lid is closed, but that changes the RF characteristics quite a bit.

*PW4 Pushing the 'Suspend/Resume' button (previously the power button), will put the laptop into suspend mode, which includes Screen off.

• • PW4.1 In suspend mode, the laptop will continue to forward mesh networking packets if it is in the path between other mesh points (laptops, school servers).

**PW4.2 Pushing the 'Suspend/Resume' button when the laptop is suspended will return it to powered on state with the same activities running as before it suspended. **PW4.3 Pressing any key on the keyboard, the mouse, directional keys or gamepad keys will also return the laptop to its full operational state. The button will not be acted upon. *PW5 When the battery gets to its defined shut down level, whether in suspend mode or full operational mode, it will shut down gracefully, without data destruction. *PW6 The student must be able to execute a full power down of the laptop from the Sugar home view.

Lid Closed

Whenever a student closes the lid, the laptop should go into suspend mode to save battery power. Wireless is still operational.

*PW7 When the lid is closed on the laptop, it will have the same affect as pushing the suspend/resume button (see Suspend/Resume Button). *PW8 When the lid is opened, the laptop will resume (or, it may be necessary for the student to press a key or the suspend/resume button)

Ebook mode

Behind the scenes, reading should consume the least amount of power after 'suspend'. The student shouldn't notice anything when in ebook mode.

(this is quite unclear: the screen will still be turned off in ebook mode? then what is a good test case that only applies to ebook mode, as opposed to the laptop mode? --Chihyu 19:40, 10 January 2008 (EST))

• PW9 A student can download a pdf file, and click on it. It will format and open for reading on the screen in low power mode. The screen brightness button can be used to reduce the power consumption even more.
• PW10 The student can convert the laptop to tablet mode and use the directional keys for scrolling through the text.
• PW11 If the student presses the rotate button, the screen will rotate 90 degrees. (This is in any mode, not just ebook mode !)
• PW12 In ebook mode, the screen may be turned off (see Screen Off) if there is no input activity for a fixed time period.

from cjb

Suspend vs. Sleep

Suspend mode

• happens automatically when a machine is idle
• can be returned from via touchpad, keyboard, buttons, wireless packet, any kind of interaction.
• screen stays on, but dimmed (unless the brightness was already low)

Sleep mode

• happens on power button press or lid close
• can only be returned from with another power button press (or lid open, but there's still a bug there; power button press to be safe)
• screen stays off to save power
• other interaction will wake up the CPU/power lights, but then it'll go back to sleep again unless it was a power button press

revision of power management requirements

suspend

PW1 After X minutes of inactivity through keyboard, mouse, directional, or gamepad keys, the screen will turn completely off (black), unless a running activity has asked to inhibit this timeout.

==> PW1 After a brief period of both input inactivity (keyboard, touchpad, buttons) and CPU inactivity, the screen will dim and the laptop will enter suspend mode, unless a running activity has asked to inhibit this.

keypress

PW3 The screen will turn back on at the press of any key on the keyboard, mouse, directional or gamepad keys. The back light will come back on to the level it was before the screen was turned off. The key press will not be acted upon.

==> PW3 At the press of any key on the keyboard, mouse, directional or gamepad keys, the power button, or a wireless packet, the laptop will wake from suspend and the back light will come back on to the level it was before the suspend. If a keypress is used to wake the laptop, it will be acted upon.