DB wrote:
Just tried to copy the file on the F12 laptop... only 324MB of 1.7GB
get
copied.
I'm beginning to wonder whether my F12 installation is without error, as
I keep losing my (KDE) panels. Each time I add a new one (so that I can
open these files etc) the widget-adder show x copies of the widgets
being in use - but I can't find a way of materialising the invisible
panels.... Also, if I "zoom out" I see 2 "screens", one plain blue,
one
the (for want of a better term) "blue blobby one" - or is this
somethinf=g to do with disabling the laptop screen with Marko's xrandr
script???
Confusion reigns supreme!
It looks like you could have some stability issues.
I would try some basic test for your hardware.
For example:
while true; do md5sum somefilewithdimensionabout50MB; done
Are the checksum all the same or do they change? If they change,
causes could be: overclocking, bad power supply, bad RAM, bad CPU
or software issues (bad kernel, unstable drivers).
Try then with a bigger file, so it will have to read the disk.
You can try the external disk, so you will test the USB part too.
Create a file of 500MB with:
dd if=/dev/urandom of=myfile bs=1048576 count=500
(replace 500 with what you want), then checksum it
while true; do md5sum myfile; done
use a dimension bigger than the RAM you have on your machine,
so you defeat the caching that Linux will try to do.
Another test could be
[create some file called a]
cp filea fileb
while true; do cmp -l a b;done
The idea is do have the machine do a lot of work for which you
already know the results. If you get a bad answer (a and b are
different??) you know the machine is not working well.
--
Roberto Ragusa mail at robertoragusa.it