Power modes - Revision history

Kingu: /* What about the power cable? */

2014-11-03T16:38:02Z

‎What about the power cable?

RygD: /* Is it be able to run from the AC Adaptor alone? */ changed "be able" to "possible"

2014-10-23T05:18:50Z

‎Is it be able to run from the AC Adaptor alone?: changed "be able" to "possible"

OmegaPhil: Hibernation is not supported

2014-07-29T21:50:17Z

Hibernation is not supported

Kingu: Added photo to page

2013-11-24T10:15:07Z

Added photo to page

Kingu: removed battery charging since it was present in fuel gauge

2013-10-08T03:01:07Z

removed battery charging since it was present in fuel gauge

Kingu: removed dead links

2013-10-08T02:57:04Z

removed dead links

Kingu: merged faq and info from hardware documentation

2013-10-07T00:51:01Z

merged faq and info from hardware documentation

Kingu at 23:32, 6 October 2013

2013-10-06T23:32:30Z

Kingu: linked to LEDs_and_backlight instead of having the info twice

2013-10-06T23:31:10Z

linked to LEDs_and_backlight instead of having the info twice

Kingu at 23:27, 6 October 2013

2013-10-06T23:27:14Z

← Older revision		Revision as of 16:38, 3 November 2014
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	A PSP power supply will work fine with the Pandora [http://forum.openpandora.org/viewtopic.php?f=17&t=41&st=0&sk=t&sd=a].		A PSP power supply will work fine with the Pandora [http://forum.openpandora.org/viewtopic.php?f=17&t=41&st=0&sk=t&sd=a].
		+
		+	The barrel jack is 4mm Ø 1.7mm inside and 9.5mm long + on the inside

	==Is it possible to run from the AC Adaptor alone?==		==Is it possible to run from the AC Adaptor alone?==

@@ Line 25: / Line 25: @@
 A PSP power supply will work fine with the Pandora [http://forum.openpandora.org/viewtopic.php?f=17&t=41&st=0&sk=t&sd=a].
-==Is it be able to run from the AC Adaptor alone?==
+==Is it possible to run from the AC Adaptor alone?==
 Originally, it was thought not, due to the design of the OMAP chipset appearing to require a battery to be connected. [http://www.gp32x.com/board/index.php?s=&showtopic=41548&view=findpost&p=600811] However, it has now been confirmed that the Pandora DOES now work without a battery installed, although some features (like backlight) may have to be turned off via software to enable this[http://www.gp32x.com/board/index.php?/topic/51654-notaz-and-his-pandora/page__view__findpost__p__806714]. The hardware tweak or tweaks have been performed as part of Pandora development, and are not something that the end user will have to worry about/perform[http://www.gp32x.com/board/index.php?/topic/51654-notaz-and-his-pandora/page__view__findpost__p__806734][http://www.gp32x.com/board/index.php?/topic/51654-notaz-and-his-pandora/page__view__findpost__p__806808].

← Older revision		Revision as of 21:50, 29 July 2014
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	==Does the Pandora have 'sleep' or 'hibernate' modes?==		==Does the Pandora have 'sleep' or 'hibernate' modes?==
−	~~Yes.~~ Pandora supports ~~both~~ suspend-to-RAM (sleep) ~~and~~ suspend-to-disk (hibernate) ~~modes~~. Entering these [[Power modes\|power saving modes]] will be controlled by software and can be configured to happen when you press the power switch, close the lid, or only on demand.	+	Pandora supports suspend-to-RAM (sleep) but not suspend-to-disk (hibernate)[http://boards.openpandora.org/topic/16732-hibernation-on-the-pandora]. Entering these [[Power modes\|power saving modes]] will be controlled by software and can be configured to happen when you press the power switch, close the lid, or only on demand.

← Older revision		Revision as of 10:15, 24 November 2013
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		+	[[File:Lead_Photo_For_Power_modes0-2920264867079787.jpg\|thumbnail\|Powerbutton]]
		+
	=Power Supply=		=Power Supply=
	==Can it charge from USB?==		==Can it charge from USB?==

@@ Line 188: / Line 188: @@
   bq27x00-battery 3-0055: support ver. 1.1.0 enabled
-==Fuel Gauge==
+==Fuel Gauge/ Battery Monitoring==
 ''/sys/class/power_supply/bq27500-0'' reports how long the battery will run for.
@@ Line 255: / Line 255: @@
 Please do keep in mind that all time values are plain estimates and can be "jumpy" depending on current system load, display brightness, WiFi/Bluetooth activity and things like the phase of the moon.
 == Charging ==
@@ Line 263: / Line 260: @@
 === config ===
 /etc/pandora/conf/eventmap
 [[Category:Power supply]]
 [[Category:Drivers]]

@@ Line 46: / Line 46: @@
 ===Normal Mode===
-This is the normal operating mode, [[display]] on, [[WiFi]] and [[Bluetooth]] on if requested. [[CPU speed]] can be selected by the user, and has a small impact on battery life. Screen brightness will also have a significant effect on battery life. The CPU should automatically self-regulate to the current task, and 10-20 hours [[battery]] life is possible depending on usage. This is mostly independent of the set CPU speed for any given task. At any time, the battery gauge will show the remaining battery life ''if the usage remains the same as over the past some seconds''.
+This is the normal operating mode, [[display]] on, [[WiFi]] and [[Bluetooth]] on if requested. CPU speed can be selected by the user, and has a small impact on battery life. Screen brightness will also have a significant effect on battery life. The CPU should automatically self-regulate to the current task, and 10-20 hours battery life is possible depending on usage. This is mostly independent of the set CPU speed for any given task. At any time, the battery gauge will show the remaining battery life ''if the usage remains the same as over the past some seconds''.
 See [http://boards.openpandora.org/index.php?/topic/10738-pandora-power-consumption-breakdown/] for a detailed breakdown of power consumption.
 ===Lid Closed===
-The only change with the lid closed is to turn off the LCD [[backlight]] and the display itself. This improves battery life, allowing music playback and streaming to continue. As of [[Hotfix2]], the screen remains on if the device is powered up with the lid closed. It is also possible to set [[xfce]] to blank the screen after a period of inactivity, which helps with battery.
+The only change with the lid closed is to turn off the LCD backlight and the display itself. This improves battery life, allowing music playback and streaming to continue. As of Hotfix2, the screen remains on if the device is powered up with the lid closed. It is also possible to set xfce to blank the screen after a period of inactivity, which helps with battery.
 ===Low Power===
-Low power mode is toggled by a short press of the [[power switch]] to the right. The screen is off, the [[radios]] are disabled, the CPU max speed is set to 14 MHz. The device is still silently on, allowing for alarms to go off or it to be turned on again instantly. The power [[LED]] will be dimmed, and may appear to be off if you are outside in the sunshine.
+Low power mode is toggled by a short press of the power switch to the right. The screen is off, the [[radios]] are disabled, the CPU max speed is set to 14 MHz. The device is still silently on, allowing for alarms to go off or it to be turned on again instantly. The power LED will be dimmed, and may appear to be off if you are outside in the sunshine.
 Low power mode is probably going to be used as the normal "off" for most people, with true off (device powered down entirely, unable to respond to alarms or wake up quickly) available to conserve battery power. Turning the Pandora off completely is the best option if you don't plan on using it for few days or longer.
-Since the Pandora has to be powered whilst it is charging, low power mode is best for fastest charging, and will even allow a full charge to be achieved from [[USB]]. It is also the best way to use the Pandora as a [[USB]] charger for other devices.
+Since the Pandora has to be powered whilst it is charging, low power mode is best for fastest charging, and will even allow a full charge to be achieved from USB. It is also the best way to use the Pandora as a USB charger for other devices.
-Opening the [[screen]] whilst in low power mode has no effect (screen stays off, clocks stay low), and you will need to use the power switch to resume.
+Opening the screen whilst in low power mode has no effect (screen stays off, clocks stay low), and you will need to use the power switch to resume.
-At the moment, there is no clear advantage in slowing the clocks (other than being an effective pause button when playing MP3). The only saving is through disabling the radios. This is likely to be improved in due course since there are features in the omap processor for power saving which are being added to the linux [[kernel]].
+At the moment, there is no clear advantage in slowing the clocks (other than being an effective pause button when playing MP3). The only saving is through disabling the radios. This is likely to be improved in due course since there are features in the omap processor for power saving which are being added to the linux kernel.
 ===Power Off===
-Select Logout then Shutdown from the window manager to power off. If a charger is connected, the device will re-boot immediately. It is possible to get into a state where you believe it is powered off, but in fact it is using power at the normal screen off rate - so after 12 hours, 50% of your battery is gone. The Power green [[LED]] ought to be a tell-tale. It is possible that some bugs exist in this area, but nothing has been clearly identified[http://www.gp32x.com/board/index.php?/topic/54652-solved-pandora-lost-charge-overnight/]
+Select Logout then Shutdown from the window manager to power off. If a charger is connected, the device will re-boot immediately. It is possible to get into a state where you believe it is powered off, but in fact it is using power at the normal screen off rate - so after 12 hours, 50% of your battery is gone. The Power green LED ought to be a tell-tale. It is possible that some bugs exist in this area, but nothing has been clearly identified[http://www.gp32x.com/board/index.php?/topic/54652-solved-pandora-lost-charge-overnight/]
 A common problem seems to be that if you switch off ''before'' unplugging, your Pandora will re-boot even though it is now left unplugged. This problem is compounded by the low battery shutdown script being called repeatedly (and actually preventing shutdown).
-To do a '''hard-reset''' of the Pandora (in case of software crashes), press and hold the [[Pandora key]] and flick the power button to the right.
+To do a '''hard-reset''' of the Pandora (in case of software crashes), press and hold the Pandora key and flick the power button to the right.
 To do a '''hard-shutdown''' of the Pandora, press and hold the Pandora key ''with right shoulder button held'' and flick the power button to the right, and then select shutdown from the menu.[http://www.gp32x.com/board/index.php?/topic/59233-hf5-not-shutting-down-or-rebooting/page__view__findpost__p__946375]
@@ Line 77: / Line 77: @@
 ==Charging==
 [[image:Power_uk.png|thumb|alt=UK charger and adapter|UK charger and adapter]]
-It is possible to charge from the mains charger (use the supplied one or a ''GENUINE'' PSP adaptor only) or [[USB]] cable. While a charger is connected, remaining [[battery]] level is displayed, but the time displays 00:00. If charging from USB, it is possible that the battery will still discharge slowly, since the Pandora takes more current (in normal mode) than the USB can supply. Mains charge is configured to draw 1000mA, USB charge is more like 600mA.
+It is possible to charge from the mains charger (use the supplied one or a ''GENUINE'' PSP adaptor only) or USB cable. While a charger is connected, remaining battery level is displayed, but the time displays 00:00. If charging from USB, it is possible that the battery will still discharge slowly, since the Pandora takes more current (in normal mode) than the USB can supply. Mains charge is configured to draw 1000mA, USB charge is more like 600mA.
 It is not possible to charge the Pandora without turning it on - connecting the mains charger or the USB cable will turn it on automatically. The normal charging circuits rely on the CPU for configuration. In practice, this has minimal impact on usage, except that after charging,
@@ Line 88: / Line 88: @@
 <!--                             which firmware was this below for?                          -->
-If your Pandora's [[battery]] is at less than 1% (actually configurable in [[XFCE]]), then you may have problems in using [[USB]] to charge the Pandora. Currently, [[USB]] is not recognised by the [[XFCE]] battery monitor so it will shutdown with no warning. As a workaround, you can put your Pandora into low power mode as soon as the flashing mouse icon (XFCE startup) appears. This should significantly delay loading the battery monitor widget, and even if the charge hasn't passed 1% by the time it checks, on the next try you should be there.
+If your Pandora's battery is at less than 1% (actually configurable in XFCE), then you may have problems in using USB to charge the Pandora. Currently, USB is not recognised by the XFCE battery monitor so it will shutdown with no warning. As a workaround, you can put your Pandora into low power mode as soon as the flashing mouse icon (XFCE startup) appears. This should significantly delay loading the battery monitor widget, and even if the charge hasn't passed 1% by the time it checks, on the next try you should be there.
 ==Operating Point==
@@ Line 161: / Line 161: @@
 ==Battery Care==
-* You can charge your [[battery]] to full charge, the charging circuits will then reduce the current to avoid overheating
+* You can charge your battery to full charge, the charging circuits will then reduce the current to avoid overheating
-* If you won't use the [[battery]] for more than a week, it is best to leave it at about 40% charged (as opposed to full)
+* If you won't use the battery for more than a week, it is best to leave it at about 40% charged (as opposed to full)
 * Don't worry about running it down too low, there are protection circuits to avoid a '''damagingly low discharge'''.
 **Avoid leaving the battery completely discharged though.  When the power runs out, the system will be unable to shutdown cleanly, and might corrupt your files or the system.
@@ Line 172: / Line 172: @@
 == My Pandora does not start, even with the mains adapter plugged in ==
-When a [[battery]] is inserted, the power goes into the battery, charges it and the battery powers the Pandora.
+When a battery is inserted, the power goes into the battery, charges it and the battery powers the Pandora.
 When no battery is inserted, the power goes through the charging circuit directly into the Pandora.

@@ Line 142: / Line 142: @@
 [[LEDs_and_backlight]]
-== THE FOLLOWING IS THE DATA PROVIDED BY BATTERY AND POWER DRIVER PAGE ==
+== Data provided by battery and power driver ==
 Information from the battery and power supply in the pandora when it is booted. It lists readout data that is provided so that you for example can write your own applet showing current power status or include some power information in your application.

@@ Line 140: / Line 140: @@
 == Controlling LEDs and backlight ==
-Available through LED and brightness classes:
+[[LEDs_and_backlight]]
 == THE FOLLOWING IS THE DATA PROVIDED BY BATTERY AND POWER DRIVER PAGE ==

@@ Line 63: / Line 63: @@
 |Using anything above OPP3 WILL shorten the lifetime of your Pandora, although it should still outlive the 1 year warranty. Using anything above OPP5 and 1Ghz will void your warranty (see [[Overclocking#Warranty_information|here]])
 }}
 ==Times==