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by clicky
Wed Jul 17, 2019 6:53 pm
Forum: General discussion
Topic: Best OS for raspberry pi as a everyday desktop?
Replies: 19
Views: 690

Re: Best OS for raspberry pi as a everyday desktop?

Raspbian is definitively the best choice... But please don't confuse OS with Windows Manager (and Session Manager) under X... Lxde (that's default Raspbian's Windows Manager, right?) openbox is the Windows Manager. lxde is the Desktop Environment. Please don't confuse the Windows Manager with the D...
by clicky
Wed Jul 17, 2019 6:45 pm
Forum: Java
Topic: JavaMail issue on Pi0 and 1 with openjdk-11
Replies: 3
Views: 75

Re: JavaMail issue on Pi0 and 1 with openjdk-11

To me it seems like JVM cannot offer appropriate ... well... Certificate? Does not support protocol? Something like that. Maybe OpenJDK11 has some restrictions over old protocols (do not support them any more) while your server does not implement anything newer... SHA-1 being disabled, maybe? Maybe ...
by clicky
Wed Jul 17, 2019 1:48 pm
Forum: General discussion
Topic: RPi 4 - Dual screen in CLI
Replies: 12
Views: 401

Re: RPi 4 - Dual screen in CLI

I bet it is possible to have separate consoles on different framebuffers. Last time I was playing with it was for adding additional screens on SPI interface, and assign console to it. I can't remember what I've done then - later I just switched to fbcp and had main (GPU supported) framebuffer just c...
by clicky
Wed Jul 17, 2019 1:40 pm
Forum: General discussion
Topic: Best OS for raspberry pi as a everyday desktop?
Replies: 19
Views: 690

Re: Best OS for raspberry pi as a everyday desktop?

Raspbian is definitively the best choice... But please don't confuse OS with Windows Manager (and Session Manager) under X... Lxde (that's default Raspbian's Windows Manager, right?) is small and well supported in Raspberry Pi community (out of box setup, software and generally - help) but is not th...
by clicky
Wed Jul 17, 2019 9:27 am
Forum: General discussion
Topic: How fast is your external HDD/SSD through USB3 reduction on Pi4?
Replies: 9
Views: 750

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

Read it as 2.8 Gbit/s. (Edited - someone forgot decimal point :roll: ) It is done with Intel's M.2 512GB SSD with USB3.1 TO PCI-e NVMe SSD enclosure. Main thing was to pick correct USB cable (USB3 to USB C - I've got a few USB C which were really USB2 only). That's the fastest anyone reported here ...
by clicky
Wed Jul 17, 2019 9:26 am
Forum: General discussion
Topic: Usefull / good programs to have on your Pi
Replies: 22
Views: 926

Re: Usefull / good programs to have on your Pi

Probably completely irrelevant - but I have just discovered that dosbox is shipped with Raspbian: sudo apt-get install dosbox and that I have some really, really old game saved from pre 2000 that work perfectly well like Prince of Persia, Warcraft II and original Microprose's Transport Tycoon (noday...
by clicky
Wed Jul 17, 2019 9:23 am
Forum: General discussion
Topic: Using raspberry pi 4 B as an everyday desktop?
Replies: 9
Views: 389

Re: Using raspberry pi 4 B as an everyday desktop?

The Pi4 is brilliant. If only ARM hadn't been sold to SoftBank :-(. The Pi4 makes me proud to be British and it continues a fine and rich history of computing the UK. The chaps at the top deserve a visit to the Queen. If Mr Dyson has one cause of vacums(!) surely Pi people deserve a few! :+1: Plus ...
by clicky
Tue Jul 16, 2019 8:25 pm
Forum: General discussion
Topic: How fast is your external HDD/SSD through USB3 reduction on Pi4?
Replies: 9
Views: 750

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

:D $ sudo hdparm -t /dev/sdb /dev/sdb: SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Timing buffered disk reads: 1058 MB in 3.00 seconds = 352.55 MB/sec Read it as 2.8 Gbit/s. (Edited - someone forgot decimal poi...
by clicky
Tue Jul 16, 2019 4:28 pm
Forum: General discussion
Topic: Raspberry PI4 1 external HDD to each USB3.0 port without external power possible ?
Replies: 6
Views: 350

Re: Raspberry PI4 1 external HDD to each USB3.0 port without external power possible ?

Oh, I don't know any specs. Currently my RPi 4 has connected: Intel SSD 320 Series - 80 GB on USB3 to SATA interface (cheap from e-bay) and Intel SSD 6 M.2 512GB SSD in USB3.1 TO PCI-e NVMe SSD enclosure (again e-bay - not that cheap) both on USB3, none with extra power supply. Both working quite fa...
by clicky
Tue Jul 16, 2019 4:13 pm
Forum: General discussion
Topic: How fast is your external HDD/SSD through USB3 reduction on Pi4?
Replies: 9
Views: 750

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

:D $ sudo hdparm -t /dev/sdb /dev/sdb: SG_IO: bad/missing sense data, sb[]: 70 00 05 00 00 00 00 0a 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Timing buffered disk reads: 1058 MB in 3.00 seconds = 352.55 MB/sec Read it as 2.8 Gbit/s. (Edited - someone forgot decimal poin...
by clicky
Sun Jul 14, 2019 6:41 pm
Forum: General discussion
Topic: Designing real electrical car
Replies: 13
Views: 450

Re: Designing real electrical car

It might be if 'motherboard' is RPi :) (or one of).

BTW Question is quite interesting - it is almost saying: "I would like to do same as big car manufacturers are doing paying 100s of millions of dollars for R&D - maybe someone here can help me code for it?"
by clicky
Sun Jul 14, 2019 6:33 pm
Forum: General discussion
Topic: Pi4 Cooling
Replies: 23
Views: 1140

Re: Pi4 Cooling

Fan SHIM our favourite pirates are selling makes temperature under control at all times. After installing it I haven't seen it going over 49ºC at any point. And - it is solderless installation - so no need to 'dedicate' PI to run with that particular shim. Alternative (from my perspective) is what I...
by clicky
Sun Jul 14, 2019 12:02 pm
Forum: General discussion
Topic: What's the simple and safe way to do a "shutdown" button?
Replies: 5
Views: 276

Re: What's the simple and safe way to do a "shutdown" button

Don't know if anyone has mentioned this yet. You can add a shutdown button using gpio-keys, defining it as the power key and then adding a udev rule to let systemd know that it should be treated as such. That will work the same as a shutdown button on the PC. A reboot button can be done the same wa...
by clicky
Sat Jul 13, 2019 8:01 pm
Forum: General discussion
Topic: Pi4 as Desktop computer
Replies: 52
Views: 3329

Re: Pi4 as Desktop computer

I'm really enjoying this. In my KDE setup I've installed more themes, but more importantly found winning combination for 'eye-candy': Compositor Enabled, Rendering backend: XRender - no vsync... https://www.raspberrypi.org/forums/download/file.php?mode=view&id=30910 So results are quite exciting: ht...
by clicky
Sat Jul 13, 2019 5:43 pm
Forum: General discussion
Topic: New Article - Pi 4 Real World Tests / NAS effectiveness
Replies: 8
Views: 638

Re: New Article - Pi 4 Real World Tests / NAS effectiveness

Odd - in my setup I can easily see 2Gbit/s on USB3 and I believe it is due to limitations of hardware I have - not RPi.

I really would like to see someone test it and find speeds closer to theoretical maximum of 4Gbit/s...
by clicky
Sat Jul 13, 2019 12:27 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: RPi4 and i2c; Has anyone used additional i2c buses?
Replies: 4
Views: 307

Re: RPi4 and i2c; Has anyone used additional i2c buses?

BTW I have added dtoverlay=i2c3 dtoverlay=i2c4 dtoverlay=i2c5 dtoverlay=i2c6 To /boot/config and only following buses appeared: $ l /dev/i2c-* crw-rw---- 1 root i2c 89, 1 Jul 13 12:59 /dev/i2c-1 crw-rw---- 1 root i2c 89, 3 Jul 13 12:59 /dev/i2c-3 crw-rw---- 1 root i2c 89, 4 Jul 13 12:59 /dev/i2c-4 c...
by clicky
Sat Jul 13, 2019 11:40 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: RPi4 and i2c; Has anyone used additional i2c buses?
Replies: 4
Views: 307

Re: RPi4 and i2c; Has anyone used additional i2c buses?

Huh - those were answers to completely different questions: I know how to drive more than one VL53L1X (or VL53L0X) on one i2c bus - you can have as many of those as you want given you have extra GPIOs to keep their XSHUT off while configuring them one by one. But, that's not the point. Problem is th...
by clicky
Sat Jul 13, 2019 8:46 am
Forum: Java
Topic: Is NetBeans best IDE for Pi 4 today or is usable Eclipse too?
Replies: 9
Views: 218

Re: Is NetBeans best IDE for Pi 4 today or is usable Eclipse too?

Speeds - I bet Eclipse is unbeaten in the world of IDEs. All of them. Incremental compiler that IBM brought long time ago from VisualJ is, still, one of the best in the world of compilers. Eclipse 2.0 or 2.1 on 700MHz Celeron with only 128MB of memory (on Windows 98 - on my 2000 laptop) works almost...
by clicky
Fri Jul 12, 2019 4:50 pm
Forum: Java
Topic: Is NetBeans best IDE for Pi 4 today or is usable Eclipse too?
Replies: 9
Views: 218

Re: Is NetBeans best IDE for Pi 4 today or is usable Eclipse too?

IntelliJ Idea works quite well. That's currently 'the' IDE for Java and it is working happily on Pi4 :)

Image
by clicky
Fri Jul 12, 2019 4:30 pm
Forum: Java
Topic: Compiling Eclipse on Pi (Pi4?)
Replies: 9
Views: 465

Re: Compiling Eclipse on Pi (Pi4?)

OK. Last night (I stayed late as it was so interesting) I had a breakthrough. I'm through the breeze blocks wall now - just to find steel reinforced concrete behind it! :roll: Anyway - issues I had was because Java was passing 32bit (int!) method signatures to JNI layer and it couldn't find methods ...
by clicky
Fri Jul 12, 2019 4:24 pm
Forum: Java
Topic: Is NetBeans best IDE for Pi 4 today or is usable Eclipse too?
Replies: 9
Views: 218

Re: Is NetBeans best IDE for Pi 4 today or is usable Eclipse too?

I'm sure Intellij Idea will work. Actually I'm going to install it in a moment and let you know. Eclipse supplied with Raspbian is 3.8 and I failed to make it work (even if I did I wouldn't call 3.8 usable :( ). NetBeans? No idea - it was slightly ignored and less mainstream IDE (and there are reaso...
by clicky
Wed Jul 10, 2019 8:39 pm
Forum: General discussion
Topic: PI4B and Raspbian challenge - Use as main computer a fortnight.
Replies: 31
Views: 1385

Re: PI4B and Raspbian challenge - Use as main computer a fortnight.

It's a valid concern. Lot's of legacy Windows applications do not run on Linux never mind within the limits of the Pi. My plan since 1997 has been: Don't do that. If it does not run on Linux it does not get used. Makes life much easier. It does mean one has to choose ones work to fit the plan. But ...
by clicky
Tue Jul 09, 2019 6:52 am
Forum: General discussion
Topic: Citrix Workspace on Pi 3
Replies: 3
Views: 251

Re: Citrix Workspace on Pi 3

Are you talking about Citrix Workspace on Buster or previous versions of Raspbian?
(I tried to install it on Buster and ended up with some issues regarding libraries - I think libxerces being newer and that broke it)

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