It took me a while to collect this information from across various threads and the schematic, so I wanted to summarise it back and hopefully make life easier for other people in future.

I have an A64 LTS (2GB) and I am now powering it from a battery pack made of 4 x 18650 cells in parallel. It's also driving a medium sized LCD which is powered by USB, which resulted in some extra complexity in getting enough power to the USB port. 

So, points to note:

1. Battery temp sensor 
The middle wire on the battery connector either has to be connected to a thermistor or to a 10k resistor connected to GND, otherwise the battery will not charge (still powers things fine though)

2. Power jumpers 
There is a pair of jumpers on the board marked DC5V and BAT. According to the schematic, you should jump DC5V if you are powering just from the DC adaptor (default,) jump BAT if you are powering from battery, or have neither connected if you are powering from both. Since I was intending to use this in a portable device (like a laptop) I assumed "both" was correct and had none of the jumpers connected, however this did not give me enough power to the USB. I had to leave BAT jumpered. This seem to work fine - not sure if anyone would care to elaborate on what this actually does. I can see the DC5V jumper connects the DC adaptor to the 5V line, so I assume having it disconnected means that everything is being powered from the AXP803, but I can't figure out what the BAT jumper is doing... If anyone can explain that one to me, it would be great :-)

3. Charging rates with high power USB devices 
Once the battery was discharged, I was struggling with charging it again. It turns out that the Pine and the USB powered screen together were using almost exactly as much power as the AXP803 was putting out when on battery - actually with loaded CPU it was drawing from the battery even with the power adaptor plugged in which isn't great. Thankfully I could adjust the power draw from the DC adaptor using the following path:

/sys/class/power_supply/axp813-ac/input_current_limit

This was set to 1.5A, though according to the data sheet it supports up to 4A. The next higher supported value was 2A (0.5AS increments), which gave me enough headroom to run the device and charge without having to pull from the battery in high load situations. Massive win. The AXP803 does get warmer from pulling more current when the device is both in use and charging, but I have a 3A DC power supply, a well ventilated case and I added a heatsink to the power chip (an old one off an RPI3 set worked perfectly) so to my mind this is moderately safe... If anyone would like to tell me otherwise I'm all ears.

4. Other useful battery tweaks 
The other useful attributes are in:

/sys/class/power_supply/axp20x-battery/

Check the uevent file in that folder to see a summary of what is available - it includes the remaining capacity (percentage) so I'll be using this to drive a "low battery" LED. Notably here you can change the min/max voltage and the max charging current (default is 1.2A, max is 2.8A according to the data sheet, and it's settable in 0.2A increments.) I've kept these at defaults for now, but I may reduce the maximum charging voltage to 4.1V or lower since I have a tendency to use my battery powered devices plugged in a lot, and this slightly lower voltage should increase battery life. Theoretically I could increase the charging current since my battery pack is around 12Ah, but decided to limit the amount of time the AXP803 is working above "typical" values, so stayed with the default on this.

I hope that's a useful summary for someone in future :-)

Since we can't get balena etcher on the Pinebook Pro is it possible to flash an SD card using the Konsole? Does anyone know how to do this?

I've been wrestling this for a couple days now. I need to work with Ubuntu for a particular project so originally tried running the 18.04 image from an SD card. Everything works great at first but I often ran into problems with software update seizing up at a certain point or the system failing to boot again after the patch. I'd reflash the SD card and start over each time, I think 6 or 7 iterations now. Deciding that it may be the SD card that's causing the problem I flashed 18.04 to the MMC drive. That went well. I ran software update and that went well too. However now, once again the system refuses to boot. I am stuck in an endless loop of the screen flashing black and then showing the boot text.

The first time through it was the Bluetooth initialization commands that were last printed. Every subsequent time it is the prompts stating that it is (in order):

Started Bluetooth service
Reached target Bluetooth
Stopped Light Display Manager
Starting Light Display Manager...
Started Light Display Manager.

The text doesn't seem to be updating so I'm not sure if the flashing is the display manager hiccuping or what. Is this a known problem with the 18.04 Ubuntu MATE image? Is there a resolution to it?

Device: PinePhone
Distro: Manjaro ARM (Phosh Beta 3)

External display works at "4096x2160" @ "23.37hz" on LG 49UJ6200.

Is there any other way to change the resolution then xrandr?

I am looking to TRY lower the resolution to TRY gain a better refresh rate?

So I was using a tablet recently, and I was thinking... it'd be nice if there were something like the PineTab, but as a USB-C dock for other devices (like the PinePhone and Librem 5). I can plug my phone into my NexDock Touch for a laptop form-factor, but as far as I can tell nothing like that really exists in a small tablet form-factor like the PineTab. There are a few larger ones, but none that I can find with around a 10" display, built-in battery, etc.

Hello,

First of all, huge thanks to Pine64 for making the PineBook Pro in the first place.  It's a nice device, but certain hardware issues prevent it from becoming really usable and more widespread.  Also, huge thanks to the members of the community for creating the software support, i.e., Linux distributions and support in the Linux kernel.

My idea for this thread is to serve as a central point for listing all well-known major hardware issues discovered in the revision 2.1 of the PineBook Pro, with the intention of having those issues resolved in the next revision of PineBook Pro.  In addition, the poll should show how much interest is out there for the revision 2.2, which would include the hardware fixes and small improvements.

The list of well-known major hardware issues, as of July 28, 2021, is as follows:

1. Overheating of the battery charging IC, TI BQ24171 – see also this thread
2. Broken sensing of the DC/charger input for the RK808 PMIC
3. Weak power supply circuitry and no use of available USB Type-C features
4. Heaphones detection circuitry needs to be reworked
5. Weird crackling/popping noises coming out of the built-in speakers – for now, there is a software workaround
6. Crosstalk between the audio output and the serial console
7. Touchpad is "laggy" or "jumpy" on the initial finger movement – see here, here and here for workarounds  Solved: touchpad firmware update is available

The above-linked forum threads and posts provide further information about each issue.  The link provided for the above-listed issue #6 leads to an external website, because I've been unable to find the same information in already existing forum threads. 

Regarding the above-listed issue #7, the conclusion of the community is that it is actually an issue in the trackpad firmware and, possibly, in the keyboard firmware.  The issue has been included in this list because of the proprietary nature of the trackpad and keyboard firmware.

Please, comment and vote!

I'm looking at the RockPro64 as a early stage prototype of a portable device. I noticed the store page for the RockPro64 mentions it has a "Lithium Battery Port", however the Pine Wiki page for the RockPro64 makes no mention of a lithium battery port, just the rtc battery.

Does the RockPro64 actually have this port, if so where can I find documentation about it? Can it be used to power the RockPro64, what pins does it use, etc.

How is everything KDE?
I'm recently become entirely fascinated by Linux,
hope to teach my child the right way some day later,
think it would help enormously with my immediate future the same,
and was wondering if you could answer a few questions:

1. [Convergence]
If you have [i.e.] Mint or PureOS would KDE Connect work with it?

2. https://invidiou.site/watch?v=-lJt1FpVu0Q
Garuda Linux KDE looks like an e-x-c-e-l-l-e-n-t place to experiment with KDE for the first time--would a KDE PinePhone be able to connect with it accordingly [Kontact, etc.]?

https://f-droid.org/en/packages/org.kde.kdeconnect_tp/
3. I think a number of scheduling/office programs would help me enormously, and was just curious how the anbox functioned, or how many non-KDE apps were available while still remaining within the mobile setting. In relation to a Librem 5?

4. Purism can separate/create an in-line app from a website, then secure it with something similar to Firejail while keeping it safely compartmentalized...Does a Pine Phone offer anything similar?

Sincere enthusiasm for everything your entire organization works so hard on,
and honest interest in making a purchase or two perhaps sooner than not.

P.S.
This was a rather rushed message, but in return for the help, definitely let me know if you/your friend has/have a lesser known book/project, review/comment needed, deserving band/link/idea,etc.--anything I can help with from afar--that needs a little extra exposure, and I'll definitely share it somehow which might [i.e] help the promotion, as well try my best to it appropriately as well as enthusiastically.

Kindest regards,
-Paul

Hello i tried to search to see if anyone has elemalation station running on the rock64. And I didn't find anything. I have a rock64_v2.0 and iwas courious if it was possible to run elemalation station for old retro games?


Joseph

Hi Everyone!
I'm selling my Manjaro CE Pinephone and Convergence package. The phone and all the accessories are still in their original packaging. I live in Canada and can easily ship it anywhere in the country with a tracking number. 

I bought the convergence package, a battery changer, clear case and tempered glass screen protector. I'll sell the whole package for 200USD + shipping. Essentially you can get the accessories for free and avoid the import tax.