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Curing the network scanning 'issue'

I used to scan a lot of magazines...

It used to be so easy. A simple USB scanner which took its own sweet time scanning...

Then I bought a Samsung MFP CLX3175 colour laser and scanner / fax. Whoopie! I could now scan over the network. I downloaded the Samsung drivers and they failed to work. I then searched and found the person making them work...

I installed the drivers and I could scan and print over the network.

Then I upgraded my Lubuntu...

Arrrgh! The scanner no longer worked. I tried all the Samsung installations. I tried his web site. He has nearly closed his web site down. Presumably because of lack of interest on the part of Samsung.

Then I searched again. It is now a few years later. Finally found a page:-
https://wiki.archlinux.org/index.php/SANE/Scanner-specific_problems

At the bottom where it says Samsung. I found the secret.

#Samsung scx4500w wireless ip network address tcp xx.xx.xx.xxOnly mine now says:-#Samsung CLX-3170 Series: Samsung CLX-3170fn & CLX-3175FW #usb 0x04e8 0x…

So apart from that, how was your week so far?

Yikes! That is big! No not my wife saying that. But VLC filled the entire big screen with icon buttons the size of my fist. Totally unusable...
This happened after I upgraded the PC to Lubuntu 18.x. I had to fix this as I just could not move or resize the VLC window to manageable proportions.
I had difficulty in Googling [?] for the fix. After 20 minutes I had found out the cause. It is Qt5. It is also not applicable just to VLC but quite a few other 'apps'. VLC just happens to be the only one on the big-screen PC.
IF you run VLC from a terminal, you will need to set up Qt before running VLC. This can be done by setting an environment variable. 
export QT_AUTO_SCREEN_SCALE_FACTOR=0 [yes they are capital letters.] then run VLC.
BUT - like always this doesn't 'stick'. So copy and paste this line into your [user] profile file, called '.profile' . That way it will affect any application you the user will run...
Great! Now back to watching VLC...

yl.beam #57 april 2018

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Contents WARO -NZ - THELMA SOUPER MEMORIAL CONTEST Ngaire Jury ZXL2UJT  -  VHF Contest – New ZealandJa-Well-No-Fine / WRTC test day in 2017 – Rosel Zenker DL3KWR 2x picsDutch Ladies partcipate in Russian DX contestpic?Bi-Centennail Joint CelebrationFurther Afield - Yls in Senegal, &  BhutanSilent Keys;   CONTACTS & Calendar
Thelma Souper  Ham radio is alive and well in Whanganui, Branch 48 NZART (NZ Amateur RadioTransmitters). Val Hawtree ZL2FO, and Ivan Horn ZL2ATU, recently picked up the female and male national trophies in the WARO competition, or the Thelma Souper Memorial Contest. This is the first time in the Whanganui branch’s history that the awards have both come to Branch 48 at the same time. Thelma Souper worked to establish amateur radio as a hobby for women and to have women accepted as equals. Many women became licensed hams through the involvement of their husbands. With Thelma, the sequence was reversed. She became the second woman in New Zealand to gain her…

The most difficult part about the fibre installation was putting the 'foot' on the router...

I had to put my glasses on when the plastic 'foot' would not engage with the router! The router has no weight to keep it stable, so the cables plugged in to the back, wobble it round the shelf. Still it all works brilliantly. [Hmm is there a pun there?]
Telkom - will be 'disconnected' - no more ...@telkomsa.netI can type this while a storm is happening outside.The speed of PC updates is amazing!
Interesting, the email client [Thunderbird] has no 'issue' connecting to the Telkom mail server. It collects the email without delay...
Sorry MWEB, I have no use for an email address @MWEB. 
The land-line is still 'dead' a week and three days after lightning took it out. Telkom last time I enquired, told me; "There is no prospect of fibre in your area in the near future." Bah! I shall now cancel my Telkom service.

Getting Your BASIC programs to work in 2018 !

Last century it wasn't always that easy to get some BASIC programs to work on the 'new' IBM PC. A lot of the programs were written in some weird dialect of BASIC. Some were hardware and graphic specific...
Now you can use FreeBASIC on all three common platforms and even the Raspberry Pi. So if BASIC is your 'thing', you can revive some programs that you thought were no longer to be useful.
I have just taken an hour or so to re-process a program for a band pass filter. It now works 100% under Linux and compiles with FBC.
As I completed it and proved it, I thought I should share the methodology with people in similar situations. It is not difficult to use the standard applications such as FreeBASIC and Geany. But I had to go back in my DOS applications to find a way of compiling the program without thousands of errors.
If I used Quick BASIC, there was no 'issue' in running the program. But when I tried to compile it using 'fbc -lang qb bpfs.bas', it spat …

Very few things didn't work when I moved to Linux. Now there is one less...

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There are things that couldn't work. There were things that I didn't need. Then there were applications or hardware that just didn't work, try as I might.
I still haven't got round to writing a driver module for my Microtek slide scanner. I kept a Windwoes 98 PC alive just to use it to scan slides.
Then there was the QX3 Intel microscope. This had nothing for Linux. It would only grudgingly work in Windows XP. When reading glasses and magnifying glass did not work, I would reach for the QX3. Only to find that I had put it on the top-most shelf. Out of reach...
Now I have a fully working QX3. With pictures of transistors and high precision voltage regulators. That I could not read satisfactorily with reading glasses and magnifier.
It is all thanks to the Linux community. Persistence pays off.
This only 10 times magnification. Makes them easy to identify, even when the paint is obscure.
The link? Sure! Here it is :- http://www.psifly.com/siguie/tested/generate.pgz?pick=5:0:0-QX…

My serial port PIC programmer doesn't work!

It seems that the 'issue' that plagued us when NT4 came out is still with us. At least for 'newbies' or others like me who was given a serial/RS232 PIC programmer. 
The other 'issue' is that most new hardware, laptops and desktops, don't have serial ports. So the 'user' is forced to use a USB to RS232 adapter. This 'adapter' does not have the correct RS232 voltages on its pins... So any circuit connected to it does not get the correct voltage [higher than 5 Volts]. For example: Several packet modems would not function with the later models [9 pin] interfaces. These modems were [correctly] designed to connect to a 'real' RS232 interface. Which goes negative with respect to the ground [0V] pin. The interface circuit required the pins to go below -3 Volts for correct switching. This is to improve the noise immunity of the circuit.
With the PIC programmers, it is a case of cheap [sorry cost effective] design. So that the programming voltag…