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[npr]

I'm pleased to report the RPi version of v5.41 works fine with my HG635, both normal login and special login are good.

@kitzuser87430
I don't use xrdp, I use tightvncserver on the RPi and tightvnc viewer on the PC.
Instructions for installing tightvncserver and more importantly how to make it auto start can be found here.
http://www.penguintutor.com/linux/tightvnc

All up and running on the RPI, just need a way to auto start dslstats.

[kitzuser87430]

@nrp
http://www.raspberrypi.org/forums/viewtopic.php?f=26&t=18968

How to autostart apps (and create desktop shortcuts)

Ian

[roseway]

Thanks guys.

By the way, I use tightvncserver on the RPi and tightvncviewer (on Linux) too. It works well with the RPi running headless. I used parts of this guide to enable SSH and tightvnc: http://otapi.com/2015/02/10/raspberry-pi-2-freepascal-lazarus-and-delphi/

[roseway]

I'm not sure what text file you mean, but you should be able to include it in a forum message by enclosing it in code tags.

Sorry, The 'SNR per Tone' text file (is that used to make the graphs ?).
All the 'SNR per Tone' text files have negative values each day, maybe it was DSLstats 5.3 was not showing them ! and 5.4 is correct ?.
This is a Netgear DG834GT modem/router.

It certainly looks as though the SNR values are being plotted correctly now. I don't want to rescale the SNR per tone included on the bitloading graph because that will mess up the visual relationship between the two parts of the graph. The negative values have no practical significance, so I propose to convert them to zeroes. I suspect that's what newer Broadcom firmwares do anyway.

[Bald_Eagle1]

I have attached an example from a G.DMT connection.

I'm not 100% sure, but I think the data came from a ZyXel or Billion modem.

[roseway]

Thanks for that Paul. I'd never seen it go below 0 dB before, but clearly it does happen. As my graphs are now plotting the negative values correctly (albeit off the scale on the combined bitloading/SNR graph) I'm going to stick with the plan to make the negative values zero on the combined graph and leave the SNR per tone graph to autoscale as it already does.

[burakkucat]

Just another datum point. When I was using a HG612 (on an ADSL2+ circuit) I occasionally saw negative SNR values. The HG612 would remain in synchronisation with the MSAN until the SNR reached -1.9 dB, at which point the connection was dropped.

Edited to strike out the nonsense.

[roseway]

Are you talking about the same thing? I remember you reporting occasions on which the SNRM fell below 0 dB without losing sync. But the issue here is SNR per tone. Sorry if I'm misunderstanding you.

[burakkucat]

Hmm . . . Ah, yes. You are right and I am wrong. 

Please ignore the irrelevant caterwauling. 

[tickmike]

It certainly looks as though the SNR values are being plotted correctly now. I don't want to rescale the SNR per tone included on the bitloading graph because that will mess up the visual relationship between the two parts of the graph. The negative values have no practical significance, so I propose to convert them to zeroes. I suspect that's what newer Broadcom firmwares do anyway.

With the HG612 on the 5.3 software it did not report any negative values for this. I will note what happens when I next put the HG612 back with 5.4.

[tickmike]

I got this at "20 Feb 2015 02:20:38   Bitswaps per min snapshot failed" (repeated in error log !) and I have No 'Bits swap per min' graph  on the main display it's all grey page in area for graph , no grid lines or detail, top of page tabs ok, bottom of page graph detail tick box's etc. ok.

[roseway]

Do you have other graphs also set to autosave, and if so, which ones?
Did the autosaves work properly up to that point in time?
Did the program continue running properly apart from the Bitswaps per min graph?
Did autosaves continue to work after that point in time?

[tickmike]

Do you have other graphs also set to autosave, and if so, which ones?

Yes, see PM I can not see a way to send screen shots in a pm 
Under 'Items to monitor' all tick box's ticked for ADSL connection.

Did the autosaves work properly up to that point in time?

Yes but graphs in auto save directory for 'SNRM per band Downstream and SNRM per band Upstream' are always blank and was with 5.3.

Did the program continue running properly apart from the Bitswaps per min graph?

Yes.

Did autosaves continue to work after that point in time?

Yes.

[roseway]

Thanks for that information.

Yes but graphs in auto save directory for 'SNRM per band Downstream and SNRM per band Upstream' are always blank and was with 5.3.

Those two graphs are only available on a VDSL2 connection, so it looks as though there's a bug which allows you to select them for autosnapshots. I'll make a note to correct that.

From your information it looks as though this was a one-off event which DSLstats should have trapped so it didn't cause any after effects. I'll see what I can do to stop it happening again, but if it does happen again please let me know.

[tickmike]

Should I re-start DSLstats via re-booting laptop ?.