VNC Server

In all circumstances, or just when a clean disconnect occurs?

Not tested with anything other than a clean disconnect.

Note that my tests have all been done on a Pi 2 (both versions).
I have given up on Pi 1 for various, non-RiscOS, reasons (including loose clunky SD card, only 2 USB ports, doesn’t fit in my cases, mounting holes in wrong place, etc)

In all circumstances, or just when a clean disconnect occurs?

Not tested with anything other than a clean disconnect.

I think it’s the IT support mentality – try to produce a reproducible failure and in a home network a glitch with a dirty disconnect is high on the list.

Note that my [vncserver] tests have all been done on a Pi 2 (both versions).

I now have a Pi 1 (model B) running with VNCserver again. (just to test it out)

I just copied the SD card files onto a new Fat formatted SD card and copied the 5.24 !Boot and !VNCserver files onto a new mSATA USB card.

It took me a while to find a 256 MB Pi 1 and a USB mSATA adapter which would work together without an external power supply. But it is all running OK now.

VNC works fine either with an HDMI monitor or headless and it is back to running at low CPU speed after the !Avalanche client disconnects. (only tried clean disconnects, so far).

Thanks for trying that John. The only difference in the setup you describe and mine is the VNC client, so although I’d already tested 2 different clients I downloaded Avalanche to see if it works and…….success! So in summary VNC viewer for chrome on a chromebook and tightvnc viewer on windows 10 both do not play nicely but Avalanche works fine. As it’s not practical to leave a keyboard, mouse and monitor plugged into a Pi purely to use as a VNC client for the other headless ones I now need to find another client that works, any suggestions welcome.

On the PC, I use Virtual Network Computing from ORL.

I downloaded this in 1998, so it has almost certainly changed since then.

The website listed in the About… box no longer works. But this may be of use (not tried).

http://www.dcs.ed.ac.uk/home/vnc/

I use UltraVNC Viewer which works perfectly. I tend to use the “portable” version which doesn’t need installing – it’s just an .exe file and creates a “hidden” options file with the log in settings you last used.

If you are on a PC, make sure to try both TigerVNC and TurboVNC. I found them to work a lot better than e.g. TightVNC, RealVNC or the original VNC client.

If you are on a PC, make sure

Do you mean an MS Windows type PC here? Just to be clear!

Or are these programs available for Linux?

Please excuse my ignorance! I no longer have anything MicroSoft.

Do you mean an MS Windows type PC here? Just to be clear!

Or are these programs available for Linux?

Both TigerVNC and TurboVNC are available for Windows, Linux and MacOS. You likely won’t get more cross-platform than that.

My everyday use laptop is a chromebook so I’m a bit limited, after testing a few android VNC clients I’ve stuck with TruVnc

http://www.phlamethrower.co.uk/riscos/vnc_serv.php

Nota: I can’t access the website.

VNC Server has a small problem: sometimes, middle click does not work, it opens the menu, and closes it immediately. A click with a real mouse on the Pi solves the problem.

VNC Server has a small problem: sometimes, middle click does not work, it opens the menu, and closes it immediately.

If this relates to StrongED then update to 4.69f11, 4.70a13 should be OK.

I use Avalanche succesfully. However I would REALLY like to be able to send alt-break, ctrl-f12 etc to the server. Instead they get processed on the client machine.

StrongED

It’s system wide… but perhaps related to the fact that StrongED is or was loaded. I will test.

I use Avalanche succesfully.

I can crash Avalanche in minutes, if not seconds.
Anyway “working” does not mean “working great” and not “working great for weeks” :)

I would like to view my Win7 laptop’s desktop in a window on my Pi3’s desktop display. I have read most of this thread but am I correct in thinking it all relates to service in the opposite direction, i.e., enabling the Pi’s (or other RISC OS machine’s) desktop to be viewed on the alien machine’s monitor?

Will VNC_Server operate as a viewer on the RISC OS Pi? If not, is there a programme that will?

What do I need to install on the Win7 machine – TigerVNC or TurboVNC?

TIA

There’s a Remote Desktop client for RISC OS that I use to access my Windows Server and Win7 upwards. The help file shows it to be by Andrew Sellors and available from www.rdesktop.org. It’s called !RDPClient.

Actually, scrap that. I can’t find a current download and the version I have is quite old now and isn’t working against the current state of Windows patches. The newer version isn’t available as a compiled prgram, although source is available. There’s no current maintainer either.

Will VNC_Server operate as a viewer on the RISC OS Pi?

No, as a server. I.e. when run it lets other machines with a VNC client view the RISC OS Pi’s screen, served by VNC Server.

If not, is there a programme that will?

There are a few VNC clients (viewers) available, Avalanche by James Peacock downloadable from here http://effarig.co.uk/riscos/ is one of them. ViNCe by Vincent Lefèvre from here http://www.vinc17.org/acorn/index.en.html#vince is another one. I think VNCViewer by Leo White and VNC by Simon Truss never made it into 32bit compatibility world.

What do I need to install on the Win7 machine – TigerVNC or TurboVNC?

Any VNC server. I think the last one I used successfully with Avalanche on the opposite side was UltraVNC Server. You might need to experiment with different servers and different settings (number of colours, encoding options) to find a combination that works good. With RISC OS VNC Server, TurboVNC on the Windows side worked fine.

Many thanks, Grahame, Steffen: I’ll give Avalanche a try, for starters. Stay well!

There’s a Remote Desktop client for RISC OS that I use to access my Windows Server and Win7 upwards. The help file shows it to be by Andrew Sellors and available from www.rdesktop.org. It’s called !RDPClient.

Actually, scrap that. I can’t find a current download and the version I have is quite old now and isn’t working against the current state of Windows patches. The newer version isn’t available as a compiled prgram, although source is available. There’s no current maintainer either.

There is no problem with !RDPclient. I use it all the time (to post this, for example). It works very well with Windows 7 and XP. (And it requires no software to be installed on the PC.)

Search RISCOS RDPclient.

I have 1.6.0 and it no longer connects to any of the computers it used to. I remember asking Andrew Sellors for a version that worked with Windows Server 2008 because the version I had before wouldn’t work with it – that’s when he released 1.6.0 that I have. The website links to a Git project that has version 1.9.0 as current but lists it as a Unix project with only source code available. My internal server is now Windows 2016 and a customer’s server is SBS2011 and 1.6.0 fails to connect to either.

I have 1.6.0 and it no longer connects to any of the computers it used to

Well I’ve just checked my RDpClient and can state the same to Windows 10 Pro 1909.

It used to work up until a few months back.

I tested that the RDP server was running via the Android Microsoft App and that works.

Have they updated the RDP version number that is allows connections ala Samba v1 being disabled as perhaps they have stopped RDP V5?

This is on RISCOS 5.24

Error is as follows:
ERROR: recv: (36) Connection reset by peer

RDPClient has suffered an unrecoverable internal error (type 20) and must exit immediately, choose ‘OK’ to save the display and logs in the Scrap directory.

Known error types:
SIGABRT 1 abort
SIGFPE 2 arithmetic exception
SIGILL 3 illegal instruction
SIGINT 4 attention request from user
SIGSEGV 5 bad memory access
SIGTERM 6 termination request
SIGSTAK 7 stack overflow
SIGOSERROR 10 os error
SIGSUB 20 subsystem failure

You’ll need to activate old connection mode.
http://woshub.com/rdp-authentication-error-function-requested-not-supported/

Thanks for the info – I suspected it was a Windows security update wot dunnit! However, I won’t be downgrading security for convenience, especially where connections to a customer’s business server is concerned – not very happy to do it to my internal business server either.

RDPClient: automatic connection is not possible with Windows 7 Home (guess what I’ve got ;-|). I’ve set RealVNC up on the laptop, but launching Avalanche just produces a black window which attempts to connect until it times out. I’ve added RealVNC to the list of progs allowed through the Windows firewall; I’ve tried inserting the IP address of the serving computer instead of its name in the Avalanche ‘Host’ field, but to no avail. Maybe the next step is to upgrade to Windows 7 Professional, which unlike Win 7 Home has a built-in server (Windows 10 will break about 70% of the mostly legacy MS programmes currently installed on the laptop!).