Messages

16

Gemini PDA - Linux / Final call for TP3

« on: January 30, 2019, 06:33:24 am »

The one big thing I think would go down well is defaulting to no Glamor - disabling it transformed my device from alpha-quality to daily driver.

How do you disable Glamor? I would like to try. Thanks.

I believe I rebuilt xf86-video-hwcomposer without --enable-glamor-hybris, cant remember if there was more to it than that

17

Gemini PDA - Linux / Linux phone or mini laptop?

« on: January 30, 2019, 06:00:24 am »

I'm curious how people are using (or plan to use) Linux on the Gemini.

My question mostly lies around power management and interaction, as follows:

Linux phone:

• Touch-optimised large UI
• Supports calls/texts
• 'Always-on' - think mobile phones where they're not truly 'off' like a laptop when sleeping/locked

Mini laptop:

• Mouse cursor UI intended for use with mice or something like this, with full fat Linux GUI software
• Lid closed = full sleep, no exceptions - same behaviour as a laptop.
• No networking while asleep, battery should last weeks in sleep mode.

18

Gemini PDA - Linux / Final call for TP3

« on: January 30, 2019, 05:15:56 am »

The one big thing I think would go down well is defaulting to no Glamor - disabling it transformed my device from alpha-quality to daily driver. It's a massive improvement in performance - scrolling feels as smooth as full size laptops afterwards. You do lose Chromium and VLC, but considering how well Firefox works with Glamor off I think it's a worthy default. Also needs a new login screen as sddm doesn't take kindly to it, so maybe too big a change for TP3...

Other smaller things:
- https://www.oesf.org/forum/index.php?showtopic=35185 (better to build from source and disable acceleration) - can't imagine using Gemini without this
- I've found a vertical panel works well, not something I'd normally use but it feels natural on the Gemini. (I don't think you need two bars, one double-width icon-only one is plenty)
- I can't remember if it's in already, but I've got lxqt-runner bound to alt+space, nicer than the fiddly start menu imo

19

Gemini PDA - Linux / Lockscreen Freeze [Partial workaround found]

« on: November 08, 2018, 03:13:29 pm »

Possibly I've not looked in the right diff, but it looks like you've changed some bits to call some external scripts: /root/sleepy.sh etc, but not checked those in?

Just hacks for my setup in there, cant remember if they even achieve anything

wakey

Code: [Select]

nmcli r all on
sleepy

Code: [Select]

killall -CONT /vendor/bin/aal
nnmcli r all off

20

Gemini PDA - Linux / Lockscreen Freeze [Partial workaround found]

« on: November 05, 2018, 11:32:23 am »

I believe the change that fixed it for me was either:

Most likely:
https://github.com/lukefor/gemian-lock/comm...cfed97a4eee816f
(disregarding the system() calls which are to restore brightness and lock miravision state on resume)

Or something in here:
https://github.com/gemian/repowerd/compare/....lukefor:master
(most of this is to undo the cancer that is miravision, nicer backlight control, and 99% fixes the occasional hard freeze and battery drain in standby - so most if not all of it can be disregarded for this issue)

Anecdotally I'm at 22 days and counting of uptime with no weirdness (no freezes, no battery drain, standby working consistently), generally the only issue I've come across is disconnecting the charger without opening/closing lid stops it from entering standby, likewise with closing the lid too quickly sometimes

21

Gemini PDA - Linux / Lockscreen Freeze [Partial workaround found]

« on: November 04, 2018, 06:13:01 pm »

I've got this 99% fixed on my Gemini, will dig up what I changed to get it working...

I've hacked a few things with repowerd suspend and with the lock screen key blocking, can't remember off hand which fixed this issue in particular, but it's defo along those lines

22

Gemini PDA - Linux / ExaGear: Wine on gemini?

« on: September 20, 2018, 06:27:44 pm »

Yes I've been using it for Dropbox, TeamViewer, heidisql, Office 2007 - generally pretty happy with it

23

Gemini PDA - Linux / Touchscreen as touchpad - relative mouse input

« on: September 19, 2018, 07:55:19 pm »

Thanks for this , applied it and it is great however there seem to be many many options we can use to tweak the driver and I am not clear how to click and drag accurately.

How much have you experimented with the settings?

For click and drag, touch and hold with one finger, then add a second finger anywhere on the screen and drag with the second finger, keeping the first finger stationary

Unfortunately the 'synaptics-style' click and drag (where you double tap but start dragging on the second tap) doesn't work reliably as it emits a click from the first tap (presumably to avoid input lag)

24

Gemini PDA - Linux / connmanctl scan bluetooth ?

« on: August 16, 2018, 12:30:33 pm »

Not a very useful reply if you're using 4G I realise, but I switched to NetworkManager to facilitate reliable Bluetooth for connecting via PAN and for a BT mouse

25

Gemini PDA - Linux / Hang on Shutdown

« on: August 05, 2018, 07:38:00 pm »

Thank you for your very fast response.

>>systemd journal (set to non-volatile)<< That's a bit above my paygrade in Linux. Could you give me quick pointers on the right way to access that journal.

I'm using the stock version of systemd.

Thanks again,
Jake

I think all you need to do is create /var/log/journal (with appropriate permissions) and killall -USR1 systemd-journald. That'll give you a persistent journal so reboot and then hopefully your issue will be visible via journalctl

26

Gemini PDA - Linux / Hang on Shutdown

« on: July 28, 2018, 10:39:48 am »

If you can't get the cause from the systemd journal (set to non-volatile), then you'll need to make a serial console cable

I had a similar issue and had to do the latter unfortunately. It turned out to be a custom systemd service I had set up, so not something that would help

27

Gemini PDA - Hardware / My last post here

« on: July 22, 2018, 09:20:55 am »

We're not defending Planet. I've had issues with my Gemini and I'm not entirely happy with them either. We're just saying that you have to be reasonable.

I'm sure if you sent your unit back they'd replace it, but you can't expect them to send you a new one first. Even Apple doesn't do that anymore, let alone a tiny company like Planet.

And if it takes two months to arrive in Brazil, what's a few more weeks to send it back?

OK.
Thank you again.
But I was not referring to you when I said this.
The fact is that Planet don't answered me.
I proposed to send my device first to them.
I did not want them to send me the gemini before.
The truth is that I did not want to pay the cost of transport and customs, which would double or triple the value paid.
Unfortunately the customs here open the packages and search the internet for the value of the product.
I've paid almost US800 ( Us 400 for the gemini and US 400 for Customs duties ). and would not want to pay another US400 of Customs duties. ( excluding the shipping cost  ). Even if it is an RMA, I would have to pay Customs duties. Believe me. Brazil is the country that has the highest customs duties.
When this occurs at Amazon ( www.amazon.com ) , they always send the product with customs duties already pre paid.
But Planet  did not answered me. Only answered me about a possible order of an addon camera.( as I mentioned before ).
And about my possible order, they answered me quickly.
And no answers about my problem.
In fact,  I waited only a few days.  But such  problem :  I hoped at  least to have a quick return.
So, I've donated my defective gemini.
It's a problem that I do not have to worry about again.
Thank you so much !

That is such a ridiculous customs system, I'm sorry you have to suffer that

Planet should have done more research into international shipping and blacklisted countries like that (no offense intended), it's just not feasible for a startup to have to pay a substantial proportion of the retail price on top of shipping an extra unit for RMAs.

Also as you used a forwarding service, as far as Planet are concerned you are a UK customer. It would be very unusual for a small to medium size company to offer international RMA. I think the most you could have hoped for without spending more money with skypax/customs is a full refund, but that would be from Planet's goodwill without receiving the broken unit back. It's obviously not okay that they stopped replying without offering you any options

As an aside, the other thread in the Linux section does provide some insight into why they might have stopped replying

28

Gemini PDA - Linux / PL2303 serial adapter drivers?

« on: July 20, 2018, 04:09:57 pm »

Huge thanks to mithrandir for discovering the CONFIG_RCU changes! I've added them to my kernel and it appears to have literally doubled screen-on battery life!

I was previously getting 20-25% per hour, now around 10%. It's also running cooler under the same usage

No idea how it can have made such a difference, but I'm not complaining!

29

Gemini PDA - Hardware / speakers out of phase?

« on: July 17, 2018, 07:49:30 pm »

After some hacking in the audio drivers I am now able to fix the speaker phase with a rather nasty but functional kernel hack that simply inverts the polarity of one channel of the audio data before it is sent to the codec. It is rather incredible how much better the sound is with the phase fixed, not only does the sound not originate from behind your eyes anymore, but there sound is much fuller with more low in it.

The problem I now run in to is that the phase is reversed with using headphones, as the same codec path is used for both headphones and speakers, so I will need to find some kind of detect if the headphones are active and only reverse phase if this is not the case.

I might also be able to fix the crackle-when-nothing-is-playing issue while I'm at it by not powering down the I2S path when audio playing is paused, but that might have implications on power usage, of course.

For the brave of heart, here is my android kernel boot image with the phase fixed: http://zevv.nl/div/linux_boot-phasefix.img. (No, I take no responsibility for any bricking or other harm done to your device!)

Awesome find! Can you share the source code of your change?

30

Gemini PDA - Linux / PL2303 serial adapter drivers?

« on: July 17, 2018, 01:53:52 pm »

It looks like.  For all cards I have tried read speed drop to under 20 MB/sec after suspend. @see: http://www.mygnu.de/index.php/2018/07/micr...the-gemini-pda/

Ah fair enough, yes I can repro that too via hdparm with the same 64gb orange EVO card, not really noticed it in my real world use though, I guess it'd be more noticeable if random reads were affected