September 4th, 2015

Wifi fun and misc..

(And apology for the SSD entry some time back. Apparently yes, they can fail to retain data after less than a week... at the very end of their lifetime.)

In the last weeks, learned that transfering real-time data over WIFI is way more fun than I thought. And that it is possible to communicate from inside of (closed) microwave oven using 2.4GHz WIFI. I don't know about you, but it scares me a little.

N900 and not everything is a file

Pocket Computer. We had pocket computers before ... Sharp Zaurus lines was prominent example. They had keyboards and resistive
touchscreens... Resistive touchscreen with stylus is accurate enough to serve as mouse replacement. Unfortunately, such machines are slowly going extinct. Sure, we have Quad-core Full-HD smartphones these days... but they lack keyboards, making ssh from them impossible, they lack accurate pointing device, and they are really phones, not small computers. N900 can almost be used as a pocket computer...

New Mer is "broken beyond repair" for n900.. as it uses qt5.  qt4 works well (well... little slow) on n900, but qt5 needs stable egl
drivers. Ok, so that was another nice-looking trap. I'm starting to think that text-only user interface is right thing to do on n900 at
this point.
Baking n900 for 15minutes at 250C seems to have fixed the "no sim card" problem... for a week. It now seems a bit flakey, but definitely better than before baking. Thanks for everyone at Czech BrmLab!
To backup mmc card on N900, I'd like to rsync root@maemo:/dev/mmcblk1 mmcblk1.img ... but that does not work, as rsync is too clever and refuses to transfer content of special files. Is there trick I'm missing?

On the n900 front... it has 256MiB RAM and 800x480 screen. What web browser would you recommend for that? I tried links2, but its support is not good enough for properly working pages... which I'd kind of like.

Linus, please reconsider -rc0

Hmm. There's big difference between 4.1 (expected to be pretty stable kernel) and 4.2-rc0 (which is probably going to be as unstable as it gets. Unfortunately, Linus does not change makefile before merging, so it is quite tricky to tell if
Linux amd 4.1.0 #25 SMP Wed Jul 1 11:20:22 CEST 2015 x86_64 GNU/Linux
is expected-to-be-stable 4.1, or expected-to-be-very-unstable 4.2-rc0...

Its tempting to name your branches simply "v4.1", "v3.11". Don't. When -rc's are done, Linus will create "v4.1" tag, and you'll have fun
figuring out what whent wrong in your git.

Google play bloatware

I got very cheap LG optimus chic.. and android did improve from G1 days. Its still Google's spying empire, but.. at least it is fluid and mostly works.
Not sure what "Google Play services" are good for, but taking 50MB of internal flash is not funny.. and when moved to SD card, the SD card tends to disconnect. "Google Play Store" still works without them. "My Tracks" need them, but 60MB of flash is not reasonable price to pay for GPX recording. "Pubtran" got removed, too. MHDdroid has strange interface, but perhaps it will not need that much storage.
Do you know a way to search czech public transport without Android and without desktop browser or Opera Mini? leads to "full" version.

And ...dear Android, "force close" dialog is last thing I want to see after hearing ringtone. If you could at least add the number to call log...

Feeling cheated

Wed Jul  1 01:59:58 CEST 2015
Wed Jul  1 01:59:59 CEST 2015
Wed Jul  1 02:00:00 CEST 2015
Wed Jul  1 02:00:01 CEST 2015
Wed Jul  1 02:00:02 CEST 2015
Wed Jul  1 02:00:03 CEST 2015
Different power supply for X60

Thinkpad X60 is marked as 20V, 3.25A. I wonder if using 19V, 2.63A power supply is a good idea. The power brick is way smaller, and 65W seems to be a little high for a small notebook.