Category Archives: hardware

First post from T430

So I finally got Kubuntu 12.04 installed on this brand new Lenovo T430. Everything went except for:

  • Some IO errors during installation; either SSD became almost full while installing or then it was some power saving feature
  • No firmware for Intel WLAN on installation; post-installation everything works

I’ll save a draft right now, and try suspending. Suspending was fast, and so was wakeup from it. I’ll try hibernation next, or I would, If it was enabled in the menus. I guess I’m going to have to dig around that some other day.

As expected, with the SSD and good Intel graphic drivers everything is as fast and smooth as possible.


Getting started with Lenovo T430

Today I finally have the time to get everything installed on my new T430. Hardware looks nice, and even Windows 7 runs OK on this 180Gb SSD model. I was though glad to see that even with a high speed SSD, Windows update is still able to take whole lot of time.

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D-Link DAP-1522 revisited

I thought it wasn’t so long ago, but apparently almost a year ago I wrote that DAP-1522 is trash. Now, that I finally have myself a 802.11n capable DSL modem it has turned out that DAP-1522 isn’t so bad after all. I’m still not convinced that the problem was my old DSL modem, which enabled even Nokia N8 to go online (though not for long time without connection dropping) and served at least two different laptops without hickups. So it must be that DAP-1522 has rather bad support for 802.11g (the 54Mbps version).

New ADSL-modem

TL;DR: Don’t buy ASUS’ DSL -gear.

I lost my previous ADSL -modem as I gave it to friend who had had his Internet connection upgraded from ADSL to ADSL2+, something which his modem didn’t understand (some prehistoric TeleWell). Off I went and bought a ASUS DSL-N12U which turned out to be complete crap.

After finally getting my 12/2 ADSL2+M connection up, ping to anywhere was double the amount it used to be with RR24AP and with nearby servers reported 10/0.1 Mbps. Needless to add you couldn’t have even the lightest network activity while hoping to keep multiple ssh connections from timeouting.

Today I called my ISP, had them check on their end if I had either misconfigured the modem or if it now reported such bad signal values that 12/2 was no go. Both the parameters and signal quality seemed fine on both ends. They promised me a nice discount on their preferred modem, Telewell with very similar specifications than Asus’ one. Now that I finally have it installed it’s working great; ping is even lower than what I got used to with RR24AP and speed test reports 12/1.9.

Trying to get rid of N8

I recently acquired an used Samsung Galaxy SII to replace my horrible N8. Right now I’m trying to backup the phone using Nokia Suite before lending it on to be used as a navigator and a camera.

First attempt: backup everything. After 2 hours Nokia Suite aborts the procedure, telling me that I don’t have enough memory (yes, memory, not disk space) and recommended that I free up some disk space (in contrast to previous sentence about memory). Turns out that my XP VirtualBox image wasn’t so big afterall..

Second attempt: backup everything except “documents” and music/recordings. After 5 minutes Nokia Suite tells me that something went wrong (yes, I’m not simply forgetting what went wrong, the notification was that something went wrong) and that I should restart the phone. I go ahead and restart the damn phone, also doing the “fix” by holding down the power button until the phone vibrates before starting it up again.

Third attempt: same as before. After 10 minutes Nokia Suite is still “preparing backing up”, the whole system is idle and nothing is happening. I cancel it.

Fourth attempt: same as before. Backup finally starts in under 1 minute. Now I’ll have to hope it really completes the backup.

Nokia really knows what’s a great user experience. I can’t wait to get rid of this damn phone. Also, it’s nice to know that the only way to access the damn files inside NBU backup file is to use .NET software, while open-source it still means I have to do it in Windows.

Experiences with Smart Array E200i

TL;DR: Smart Array E200i should not be trusted; HP Array Configuration Utilities are horrible, always prefer Linux’s md.

About four years ago we purchased a ML350 G5 server with some SATA disks and a small BBWC, put them into RAID 10 with a spare. Everything went peachy until about a week ago when we had a full server lockup.

Post-lockup, there was nothing interesting in the logs (from cpqarrayd) or any other obvious cause. Next lockup came a few days later, now I noticed that a spare had been activated successfully; replacement disks were ordered and I started preparing a replacement server.
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Pain that is D-Link DAP-1522

Not too long ago I bought a WLAN-WLAN bridge as I got I tired of walking over my well installed CAT5 cable connecting my workstation to my ADSL modem.

My ADSL modem is cheap A-Link RR24AP (or something along those lines). It has proven itself to work in the last three or four years. It needs an occasional reboot (1-4 times a year) and after each you need to remember to shut down all firewall capabilities — otherwise the device will crumble under 100KBps throughput. It has a/b/g WLAN access point capabilities which are compatible with both my laptops Intel 3945 chip and chips of numerious cellphones me and my friends have used.

The DAP-1522 is both a/b/g/n WLAN access point and a WLAN-WLAN bridge. The downside is that it just does not work. It could be broken in some mysterious way, but I think that this all is just a feature: Under load (my Internet plan maximum 12/3 Mbps throughput) the device will randomly blink all it’s lights and do a slower-than-cold-boot reset, erasing everything other than the configuration. So in the event of a failure, the device wipes it’s logs and time configuration. Nice!
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Fit-pc2i experiences

Yesterday I got my bought a fit-pc2i rev 1.2. Short summary:

  • Do not buy fit-pc2’s to be your media pc — HDMI does not transport audio
  • If you are planning to install any Windows on it, buy it pre-installed from Compulabs, they have some OEM goodness like HW accelerated codecs (plus it’s always horrible to install Windows)
  • Choose either (a platter disk AND heatsink) OR (an SSD disk AND no heatsink), because at least the Western Digital 5400rpm disk I plugged in stays at 45C at most of the time
  • If you are looking for a headless mini-server, choose fit-pc2i

I am going to be using this fit-pc2i to implement “a camera security system” to a remote location with bad Internet connectivity. Hopefully I’ll have time to write about that project more later.