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by clicky
Sun Jul 07, 2019 8:38 pm
Forum: Java
Topic: Compiling Eclipse on Pi (Pi4?)
Replies: 11
Views: 9330

Re: Compiling Eclipse on Pi (Pi4?)

Some progress:

Image
by clicky
Sun Jul 07, 2019 7:16 pm
Forum: General discussion
Topic: Pi 4 firmware, software stability improvements
Replies: 83
Views: 41010

Re: Pi 4 firmware, software stability improvements

Really nice. Thanks for posting pictures. :)
by clicky
Sun Jul 07, 2019 7:13 pm
Forum: Java
Topic: Compiling Eclipse on Pi (Pi4?)
Replies: 11
Views: 9330

Re: Compiling Eclipse on Pi (Pi4?)

This is interesting: - compiling R4_11_maintenance branch on Mac and RPi - fails! - compiling R4_12_maintenance branch on Mac succeeds but fails on RPi Difference between Mac and RPi are: RPi: Java 1.8.0_211, mvn 3.6.0 Mac: Java 1.8.0_111, mvn 3.6.1 (I don't think that's what causes it to fail) Now ...
by clicky
Sun Jul 07, 2019 3:21 pm
Forum: General discussion
Topic: How fast is your external HDD/SSD through USB3 reduction on Pi4?
Replies: 9
Views: 1742

Re: How fast is your external HDD/SSD through USB3 reduction on Pi4?

As I have already posted before: $ sudo hdparm -tT /dev/sda1 /dev/sda1: Timing cached reads: 1812 MB in 2.00 seconds = 905.89 MB/sec Timing buffered disk reads: 750 MB in 3.00 seconds = 249.94 MB/sec Which pretty much translates to 2Gbit/s (https://www.ebay.co.uk/itm/USB-3-0-To-Connect-SATA-2-5-Inch...
by clicky
Sun Jul 07, 2019 2:31 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: RPi4 and i2c; Has anyone used additional i2c buses?
Replies: 15
Views: 7922

RPi4 and i2c; Has anyone used additional i2c buses?

Has anyone used additional i2c buses?

It would be really nice switching from using multiplexer to directly driving distance sensors on separate buses (there are 8 vl53l1x I would like to read and bottleneck is it being so chatty on the bus).
by clicky
Sun Jul 07, 2019 11:35 am
Forum: General discussion
Topic: Pi 4 firmware, software stability improvements
Replies: 83
Views: 41010

Re: Pi 4 firmware, software stability improvements

I tried out some WebGL stuff like this: http://madebyevan.com/webgl-water/
and I can't say it is smooth and very responsive - but it works :)
by clicky
Sat Jul 06, 2019 4:06 pm
Forum: General discussion
Topic: Pi4 as Desktop computer
Replies: 270
Views: 41313

Re: Pi4 as Desktop computer

I had to switch compositor off for KDE to display any content (text and images). With compositor on - it would render background image and shadows all around but nothing else :(
by clicky
Sat Jul 06, 2019 2:58 pm
Forum: General discussion
Topic: Pi 4 firmware, software stability improvements
Replies: 83
Views: 41010

Re: Pi 4 firmware, software stability improvements

Thanks. And in chromium-browser, you comment out the if - fi block containing this line - CHROMIUM_FLAGS="${CHROMIUM_FLAGS} --disable-gpu" ? I've just done it and everything still works + Graphics Feature Status Canvas: Hardware accelerated Flash: Hardware accelerated Flash Stage3D: Hardware accele...
by clicky
Sat Jul 06, 2019 1:46 pm
Forum: Java
Topic: Compiling Eclipse on Pi (Pi4?)
Replies: 11
Views: 9330

Re: Compiling Eclipse on Pi (Pi4?)

OK. I moved from square one - I managed to create .so files in org.eclipse.swt.gtk.linux.arm of R4_11_maintenance branch. Now, it is really proper bodge I end up with - manually finding build file, moving folders around, installing randomly 'stuff', etc... But result is in: libswt-atk-gtk-4924r25.so...
by clicky
Fri Jul 05, 2019 1:05 pm
Forum: Java
Topic: Compiling Eclipse on Pi (Pi4?)
Replies: 11
Views: 9330

Re: Compiling Eclipse on Pi (Pi4?)

I get it - there's quite a lot of 'hidden knowledge' buried there - somewhere. BTW I am trying - this is the latest: https://github.com/turesheim/eclipse-rpi/issues/4 If you do succeed - note down how you did it! Huh - of course. It is really hard to track going blind through options - especially wh...
by clicky
Fri Jul 05, 2019 12:49 pm
Forum: General discussion
Topic: Pi4 as Desktop computer
Replies: 270
Views: 41313

Re: Pi4 as Desktop computer

I would be interested in knowing how on earth you compile Eclipse. In my attempts the system was so complicated I was unable to make it compile. Even Debian are thinking of dropping Eclipse from their repos because building it is so difficult. I order not to derail this subject - I've just created ...
by clicky
Fri Jul 05, 2019 12:48 pm
Forum: Java
Topic: Compiling Eclipse on Pi (Pi4?)
Replies: 11
Views: 9330

Compiling Eclipse on Pi (Pi4?)

Hi all, I would like to start this discussion about Eclipse and Pi. Now we have Pi4 and it getting close to a 'desktop computer' it would only be fitting to have appropriate (alternative) of Java IDE. I am aware that 'eclipse' (and 'eclipse-jdt') is available through standard Raspbian repos, but it ...
by clicky
Thu Jul 04, 2019 4:37 pm
Forum: General discussion
Topic: Pi4 as Desktop computer
Replies: 270
Views: 41313

Re: Pi4 as Desktop computer

I've installed kde via tasksel on raspbian buster for my pi 4. It was super easy. There are a couple of hiccups. No acceleration for rendering. Opengl doesn't work. Xrender is fine. That's interesting - OpenGL3.1 selected works for me. Now, does it really use it or just showing it is using it - no ...
by clicky
Wed Jul 03, 2019 7:25 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 945
Views: 178756

Re: Raspberry Pi 4 Thread - general discussion

Now, if you have room for something as small as an SSD drive, the minimal extra money for an SSD seems like a no brainer for 300-500MB/sec speeds. How much is a decent 128GB SD card that will cap out 50MB/sec vs going 120GB SSD? Absolute max you're going to get with an SSD is 400MB/s becasue the PC...
by clicky
Wed Jul 03, 2019 7:15 pm
Forum: General discussion
Topic: Raspberry Pi 4B - Mouse Cursor lag in 4k
Replies: 9
Views: 2082

Re: Raspberry Pi 4B - Mouse Cursor lag in 4k

It definitively doesn't look like refresh rate casing it... It seems like cursor movements are refreshed @ 10Hz or less...
by clicky
Wed Jul 03, 2019 8:27 am
Forum: General discussion
Topic: Pimoroni 7 days and not ship rpi4.
Replies: 16
Views: 1642

Re: Pimoroni 7 days and not ship rpi4.

I've got a feeling you're a bit irritated and they swamped with orders, backorders and such. What I've heard they've dropped some other stuff they are doing (developing new shims, etc) in order to deal with while Pi4 thing. If you really don't want it any more I am sure there are ways to cancel the ...
by clicky
Mon Jul 01, 2019 12:59 pm
Forum: General discussion
Topic: Python on loose in Cambridge
Replies: 2
Views: 241

Python on loose in Cambridge

... apparently called Turing.

Is it a PR stunt coinciding with Pi4 lanch? :D
by clicky
Mon Jul 01, 2019 12:25 pm
Forum: General discussion
Topic: Raspberry Pi 4 and openSUSE LEAP 15.1 ?
Replies: 4
Views: 3513

Re: Raspberry Pi 4 and openSUSE LEAP 15.1 ?

OpenSUSE is my favourite distro (all way from 2002 when I evaluated a few and even that version, then , seems far more rounded than many today's favourites). I haven't tried it on Pi4, but I went for Raspbian + KDE and played a bit sorting out bits and pieces for it look closer to what I would get s...
by clicky
Sun Jun 30, 2019 5:57 pm
Forum: General discussion
Topic: Pi4 as Desktop computer
Replies: 270
Views: 41313

Re: Pi4 as Desktop computer

Correct me if I am wrong, but wouldn't Raspbian have tasksel as it is a Debian derivative? That would make installing KDE a bit easier/complete. No idea about tasksel really... I don't know if I would be comfortable using a large desktop with 3D animations and other intensive stuff. I was slightly ...
by clicky
Sun Jun 30, 2019 4:16 pm
Forum: General discussion
Topic: Pi4 as Desktop computer
Replies: 270
Views: 41313

Re: Pi4 as Desktop computer

OK - Now I did like for like - same RPi, fresh, empty noobs sdcard vs raspbian with KDE, same screen resolution, etc... (only thing that's not 'far' to compare is KDE has a few 'widgets' more (ram usage, temperature gauge, CPU monitor): noobs exactly 200Mi (for used in 'free' command) raspbian with ...
by clicky
Sun Jun 30, 2019 2:04 pm
Forum: General discussion
Topic: Pi4 as Desktop computer
Replies: 270
Views: 41313

Re: Pi4 as Desktop computer

Kool that you are doing well with a super bloated setup. I might be wrong, but I wouldn't call it 'bloated', really, or in that matter 'super' bloated. :) I don't expect it caused too much of a disk usage (what is a couple of hundreds of megabytes :roll: if that much) nor memory usage: free -h tota...
by clicky
Sun Jun 30, 2019 2:00 pm
Forum: General discussion
Topic: Pi4 as Desktop computer
Replies: 270
Views: 41313

Re: Pi4 as Desktop computer

That is great! Can you write steps how to install KDE plasma desktop on raspbian? It's mine favorite too. Good point - it was a bit odd: sudo apt-get install kde--plasma-desktop and then switch to sddm manager and select 'Openbox' session (top right corner). Maybe a reboot (or at last 'sudo init 3 ...
by clicky
Sun Jun 30, 2019 12:39 pm
Forum: General discussion
Topic: Pi4 as Desktop computer
Replies: 270
Views: 41313

Pi4 as Desktop computer

I've seen a few posts of people being sceptical if RPi4 now can or cannot be used as replacement for desktop computer and I had to give it a go. 1.5GHz quad core is decent speed - MacBook starts with 1.2GHz dual core (probably faster processor on its own and has 'boost' to 3GHz) but still - not anot...
by clicky
Sun Jun 30, 2019 11:44 am
Forum: General discussion
Topic: USB to m.2 on pi 4
Replies: 11
Views: 3356

Re: USB to m.2 on pi 4

I cannot see real figures here. I've attached some cheap USB3<->SATA caddy + old 80GB SSD (Intel320 Series) which is marked as 3Gb/s and run sudo hdparm -tT /dev/sda1 /dev/sda1: Timing cached reads: 1308 MB in 2.00 seconds = 653.88 MB/sec Timing buffered disk reads: 730 MB in 3.00 seconds = 243.18 M...
by clicky
Tue Jun 25, 2019 1:02 pm
Forum: General discussion
Topic: Respberry Pi 4 B , Two USB 3.0 eGPU
Replies: 10
Views: 4629

Re: Respberry Pi 4 B , Two USB 3.0 eGPU

So if it can't give nearly 5 GB why call it USB 3.0? I guess this will at least make connecting a real drive to the Pi better. Still somewhat disappointing that it's not actually what it seems from the upfront specs. USB 3 specification allows speeds up to 5GB and doesn't prescribes it as minimum b...

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