Disabling the touchpad on a Dell E6400 with Xubuntu

I dislike touchpads.  Okay, that’s not quite true, I truly despise touchpads!  Given the choice between a trackpoint (the knob pointer control in the keyboard) and a touchpad (a.k.a. scratchpad), I’ll take the trackpoint every time.  I absolutely love the IBM Trackpoint on my Thinkpads.  So it was with some angst that I found that booting the work Dell E6400 into Xubuntu using a USB hard drive for travel that both the trackpoint and touchpad were active.  Finding a solution was a few search pages away.

The Random Shiznit blog held the solution:

xinput --set-prop "AlpsPS/2 ALPS DualPoint TouchPad" "Synaptics Off" 1

Now, where to put it?  Another search led to the XFCE Wiki and the section titled, “How to customize starting Xfce” where it is advised to copy /etc/xdg/xfce4/xinitrc to ~/.config/xfce4/ and customize it.  Upon editing the file to add the line above I found the lower section of the file has a comment that advises that code below the comment won’t be executed if xfce4-session management is used.  So I added the line above the block that looks for and executes the session manager and Voila! the touchpad is disabled whenever I log into XFCE.

 

Posted in Computing, XFCE 4 | Leave a comment 4 views

Restoring screen brightness step size on XFCE4

I’ve been annoyed by the behavior of recent Debian/XFCE4/GNOME3 releases that have reduced the number of screen brightness levels from the T60′s default of 8 to 4.  The problem seems to stem from the removal of hal from recent desktop standards development.  I posted this question to a couple of related mailing lists and learned the above from Debian bug report 627336 and XFCE bug report 7541.

The work-around is to disable XFCE’s handling of the screen brightness hotkeys as follows:

xfconf-query -c xfce4-power-manager -n -t bool -p
/xfce4-power-manager/change-brightness-on-key-events -s false
xfconf-query -c xfce4-power-manager -n -t bool -p
 /xfce4-power-manager/show-brightness-popup -s false

The first command disables XFCE’s handling of the hotkeys and the second disables XFCE’s On Screen Display.

 

Posted in Computing, XFCE 4 | Leave a comment 1 views

Father Time is gaining

Call me “four eyes” now.  I had to give in and get reading glasses since my arms weren’t getting any longer.  Snort!

OTOH, it’s nice to have reading material in such clarity again.  I probably should have done this years ago.  Hopefully I can stave off the need for full time corrective lenses a couple of decades.  Sigh…

 

Posted in Uncategorized | Leave a comment 11 views

Is money the root of all evil?

So you think that money is the root of all evil?  This excerpted essay from Atlas Shrugged argues otherwise.

 

Posted in Uncategorized | Leave a comment 44 views

An open letter to World Radio magazine and CQ Communications

I have been a long time subscriber to World Radio magazine dating back to the January 1984 issue when I received it as a sample copy due to my then having recently received my Novice license in November 1983.  I liked the magazine well enough that I bought a lifetime subscription in the early 1990s.  Your purchase of WR saved it from extinction and the change in editorial attitude made WR enjoyable to read again.  Obviously, economics have forced you to return to paid subscriptions.  But this is not the point of this letter.

In the process of returning to paid subscriptions you have chosen Zinio as your provider.  Who you chose matters not to me, how they offer the content to me does, however. From the Zinio FAQ a stand-alone reader is required to read magazine content delivered via their service on one’s own computer.  While a Flash plugin can be used online, a network connection is required.  As the standa-alone reader is available only for MS Windows and Mac OS/X, a Linux user, such as myself, is left with online as the only option.  This implies that the content is locked into a proprietary format accessible only with Zinio supplied software.

Vendor lock-in is a non-starter in my shack and so my money has stayed in my wallet.

I’m sure that you can appreciate that some of us do adhere to a set of ideals both within and outside of amateur radio.  One of the ideals that I hold is that content I purchase will be in a format that can be accessed via  a variety of tools.  PDF is one such format for documents and I think it was welcomed that the free editions of WR were offered as PDFs.  Many other well supported formats exist for other media formats.  So, to be clear, the issue is not that WR has returned to a subscription price, although I can empathize with former WR lifetime subscribers who feel a bit jilted.  The issue at hand is solely that WR is now offered in some proprietary format which is not only complicated by a single source supplier, but also puts anyone potentially at odds with the Digital Millennium Copyright Act of 1998 (DMCA) who wishes to circumvent any protection Zinio has put in place.

I can appreciate that you have likely chosen this provider based on several criteria they offered that fit your new business model for WR.  I hope you can appreciate that we must part company until such time as WR is again provided in an open format supported by various reader software programs so I can be comfortable knowing that my subscription money will be buying a product that I can access well into the future.  I do not have that guarantee with Zinio even if they provided a reader for Linux.

73, de Nate >>

 

Posted in Amateur Radio | Leave a comment 99 views

An SQL query for unique SKCC numbers in CQRlog

As a follow-on to the MySQL server spawned by CQRlog article, I present a nice bit of SQL for your amusement.  This query is based on the storage of SKCC numbers being in the award column and in the format of ‘SKCC #’.  This query works in either CQRlog’s SQL console or the mysql utility:

SELECT DISTINCT qsodate, time_off, callsign, freq, mode, name, rst_r, rst_s, award FROM cqrlog_main WHERE award LIKE ‘SKCC%’ AND mode LIKE ‘CW’ GROUP BY award ORDER BY qsodate, time_off;

  • The use of ‘GROUP BY award’ weeds out duplicate numbers that have a different callsign, such as for K3Y events and such.
  • The SQL console of CQRlog only supports CSV and HTML output formats.  Most likely some sort of Perl script will be needed to generate ADIF, hence why I was anxious to exploit independent database access.

 

Posted in Amateur Radio, Software | 3 Comments 102 views

Accessing the MySQL server spawned by CQRlog

Since version 1.0.0~alpha1 CQRlog has used the ubiquitous MySQL database.  By default MySQL is used as an embedded database and the individual databases are stored under ~/.config/cqrlog/database/  This is all well and good and has the advantage of removing the need of a CQRlog user doing any sort if database admin type stuff.  It’s easy and works well.  My goal is to be able to access the database from outside of CQRlog for my own purposes.

After a bit of sleuth work I found that CQRlog starts a mysqld process that listens on TCP/IP port 64000.  The only problem is that when using the mysql utility to connect to that port I could not see any cqrlog named databases.  The ‘ps ax | grep mysql’ revealed that the  mysqld process is started with the –datadir option which points to the database directory above, but I could find no similar option for the mysql utility.  I finally stumbled upon a reference for using the file socket as in:

mysql -S /home/USER/.config/cqrlog/database/sock

which did the trick!  I can now browse the databases, for better or worse.

Notes

  • mysqld started by CQRlog has the –skip-grant-tables option passed to it so no user name or password is needed.
  •  CQRlog must be running for the file socket to be available.
  • A system wide MySQL database process is not used by CQRlog.  Perhaps that will be available in the future.

I’m sure there is much more to learn about all of this!

 

Posted in Amateur Radio, Software | 1 Comment 256 views

Fun with the FUNcube Dongle

Late last year a new Software Defined Radio (SDR) project hit the amateur radio market place, the FUNcube dongle from AMSAT UK (FCD).  It is a receiver covering the spectrum of approximately 64 to 1700 MHz and presents a USB audio device to the computer with in-phase (I) output on one channel and quadrature (Q) output on the other.  Any SDR software capable of working with IQ from an audio stream should “just work” (TM), however setting the center frequency may require use of third-party software until the SDR software in question is updated for FCD control.

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Posted in Amateur Radio, Computing, FUNcube, Hamlib, Linux | Leave a comment 471 views

Another tale on my entry to amateur radio

Looking for something unrelated I ran across this post I made to eHam.net back on 8 December 2007.  I’ll add more of such posts as I find them scattered about the Web.

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Posted in Amateur Radio, History | Leave a comment 64 views

The Novice license turns 60!

The Novice Historical Society has been created to celebrate 60 years since the creation of the Novice class license in the USA.  The Novice became the pathway into amateur radio for the next 40 years until the Morse exam was eliminated from  the Technician license in February 1991.  Novice licenses are no longer issued, that stopped on April 15, 2000 with the implementation of “Restructuring” and the current three-class license structure in the USA.  However, holders of a current Novice license may continue to renew it.

Here is my story.

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Posted in Amateur Radio, History | Leave a comment 41 views