Hi , I have a big problem . And I wanna say I'm noob in Linux



Well , my laptop probably dead it has only black screen when I turn it ON .



In last session I ran some command in terminal and notebook going dead .



There is some command after it dead :



fdisk /dev/mmcblk2



and in fdisk menu i press d (i think it delete)



and then I reboot laptop and it just dead (Black Screen)



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I also tried to boot it from SD cart but it just blinkin' red and same black screen







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In my opinion I just erase all software in laptop



Please help me reanimate my PinePro.



Hope for your help guys

I was checking Windows and Liunx mini PCs, and I ended up with the PinePhone as the most interesting device for this. It has a small form factor and is affordable. Although it is not designed for this purpose, is it not possible to modify it for this purpose?


I m facing the problem for a mobile EEG device. EEG sensor streaming over Bluetooth can only stream ca 4 channels at a high quality level due to bandwidth limitations of Bluetooth. Wifi streaming costs a lot of energy, and is not so interesting for mobile use. Better is a cable connection. But then the cable distance has to be kept short, to avoid too much cabling. Assuming an EEG device with 32 channels. This gives 32 cables.


The development of EEG devices for mobile use is not very advanced. There is no convincing solution yet. Any ideas?

Rarely used and in perfect condition.
I sell it because in the end I made myself a new desktop and I now use the laptop I was using as desktop as laptop and my kids cannot use it because of the QWERTY keyboard :-(

I am in Belgium but can ship everywhere in Europe, at receiver risk.

Make a fair offer.

What's this i hear?........

Hi,

I am trying to get icons to appear in the launcher, but none are appearing given my desktop entry files in .local/share/applications.

Is there any way to diagnose what the problem is?  Any way to see some error messages or logs?

Hello,
Does anyone think there will be a security type of OS built for the pinephone, like a Graphene but for the phinephone ? I'm sort of into that type of stuff and figure the phonephone would be a great platform to build something like that on.I could be wrong, and maybe I'm dreaming of something that can't or won't be created.

Any thought on what impact if any the acquisition of arm by Nvidia will have on the community?

I just recorded 9 hours of audio overnight using a USB soundcard only to find it was mostly power supply trash.  This didn't happen on batteries.


I'm scratching my head thinking my microphone preamp had started oscillating, then I realized it was hum.  But not normal 60 or 120 hz hum, this is from a switchmode power supply.  I suppose you could argue that the USB sound card should have better filtering since it's trying to do analog stuff in a digital world, but it just assumes the USB power is clean.  Is there an obligation to provide clean power?  The preamps are battery powered still, it's getting picked up in the sound card.  Which is a $10 cheapie from Aliexpress.  I do have a better one I could try.

OK, with my StarTech USB sound card some of the high frequency stuff is filtered out, it sounds more like 120 hz hum, which of course it isn't.  It's like there's some capacitance there but only enough to take out the high frequencies.

I'm recording with sox and having it normalize the level so the hum becomes most of the signal I recorded.

Just guessing, if you settled for running the soundcard internals on about 4.5 volts instead of 5.0, you could use a PNP pass transistor in linear mode with some active filtering to clean that up. You pull the base of a PNP down to make it conduct so it has less overhead than an NPN. An old LM723 chip has quite good active filtering if you use a few stages of pass transistors to provide current gain. I don't have a spare one of those barrel plugs though.

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I live in Switzerland and often buy products directly in China from Aliexpress.com. They have an excellent store, and shipping via Aliexpress standard shipping is cheap, I guess around 10 USD for a 150 USD device. Shipping time over Aliexpress standard shipping is about two week and reliable. You can send products also through China Post, which is even cheaper, but takes more than a month. When the PinePhone is produced in China or Asia, why not to choose Asias best store with Asias best shipping method?

I am running Mobian on an SD card and i would like to change the ring tone and also the Alarm Clock tone.  My plan was to replace the default sound file with what I wanted but I am struggling to find the their locations.  I will keep on searching but if anyone by chance knows will you please post it here?

Note: I am using the default "Clocks" app.