IRC log of #cubox of Tue 13 Jun 2017. All times are in CEST < Back to index

00:36 coburn manufacutrers use *F instead of *C?
08:47 vpeter Wel, if I see 65000 there this is no F either :)
09:07 vpeter I'm asking this because Armbian is using some strange math: https://github.com/armbian/build/blob/master/scripts/update-motd.d/30-sysinfo#L42
09:08 vpeter It subtracts 20 degrees from /sys/devices/virtual/thermal/thermal_zone0/temp.
12:19 topi` vpeter: what are you running lede on?
12:57 vpeter clerfog pro
13:23 topi` cool... I want one, too :)
13:24 topi` but first, I need to get my macchiatoBIN going. Its power supply failed, it now outputs +0V
13:24 topi` I'll try another variable voltage power source with barrell connector
13:24 vpeter Your macchiatoBIN still offline? And you want so long for it :(
13:24 topi` I also bought a 16GB DIMM (2400mhz) for it, it'll be interesting to see whether it works or not
13:25 topi` it needs a fan, gets way too hot when compiling linux with make -j8 :)
13:25 vpeter This reminds me: need to buy one mini pcie wifi card.
13:25 topi` I need to buy a 802.11ac mpcie card
13:25 vpeter Fan is included or yours?
13:26 topi` possibly a Compex WLE600VX
13:26 topi` I have some fans, need to check a suitable one
13:27 vpeter I'm thinking to put one on solidpc also. Now that we have summer it gets little wormer too :-)
13:27 topi` yeah, summers are difficult
13:27 topi` luckily we have airco in our house
13:28 topi` I need to install some solar panels to provide it with eletrciticy. The hotter the sun shines, the hotter the house gets :) and the more power the panels actually output...
13:28 vpeter It works like that yes :D
13:29 topi` they have possibly the cheapest solar kits in EU: https://www.ev-power.eu/Solar-Systems/GridFree-Kit-of-2pcs-of-solar-panel-310-Wp-Microinverter-230V-500W.html
13:29 topi` gonna order a bunch of those kits
13:33 topi` I want to build a proper network hub for our house, and that's why I was eyeing the CF pro with its builtin Gbit ethernet switch and all
13:33 topi` I could even, probably, draw some fibre to our neighbor's house at 300 meters, and try getting a SFP module for fiber
13:34 vpeter and faster internet :)
13:34 topi` damn, I hate being behind 4G
13:34 topi` the big problem is that our house is in an island
13:34 topi` and they won't cover this place with fiber
13:34 topi` too few houses
13:35 vpeter Use two of those https://www.ubnt.com/airfiber/airfiber5/ and make a link? If you could attach to it on the other side.
13:40 jnettlet Long range point to point wifi is great until bad weather hits
13:41 jnettlet vpeter, did you get your temps question answered?
13:41 topi` jnettlet: it's also easy to just drop some fibre to the bottom of the sea :D
13:42 topi` the water is more than 5 meters deep between
13:43 vpeter jnettlet: not yet.
13:45 vpeter I assume this temp in /sys/devices/virtual/thermal/thermal_zone0/temp is just a die temp as usual.
13:45 topi` on the macchiatoBIN, those temps are most probably die temps since they can hit as high as 95C
13:46 vpeter The question come from here http://forum.solid-run.com/hardware-f33/beefing-up-the-heatsink-alternatives--t3306.html#p22198
13:52 topi` vpeter: these armbian scripts do not seem very scientific :D
13:52 topi` it seems there is a linear relationship in the readings, though. Should be corrected via a formula like x = k*a + b and not like this
13:53 topi` OTOH, I think a metal heatsink that is at 55 deg Celsius DEFINITELY burns my hand
13:53 topi` but this is just because of the properties of efficient heat transfer when the material is metal
13:53 vpeter topi`: why even subtract some value? That's the question.
13:54 vpeter 55 doesn't burn the hand. I have 65. But it is VERY hot.
13:54 topi` I need to order a TMP006 from TI and test out the surface temperatures
13:55 topi` http://www.ti.com/product/TMP006
13:55 vpeter Long time back I turned on one old intel P4 or something without heatsink. This was hot :)
13:56 topi` oh yeah, those were nuclear furnaces
13:57 topi` I wonder if it were possible to hook up a modern Radeon PCIe card on the Macchiato and see if the open source DRI codes work with it :)
13:58 topi` the connector is a x4, though, so some kind of adapter needed
14:01 topi` probably NVMe storage could also be plugged in the x4 slot, but I'm unsure of if it is supported in linux
14:02 vpeter I think there are some LibreELEC users with it.
14:03 jnettlet I am working on getting next gen cooling with heat pipes or vapor chambers, but really a small slow moving silent fan is the best options. I have some models I have tested
14:04 jnettlet The problem is The heatsink fins are close enough that they tend to get vapor locked and natural convection isn't efficient enough
14:05 vpeter jnettlet: you have those fan models at hand? Something small, efficient and silent.
14:09 jnettlet https://goo.gl/photos/Ycj5xyUA29nfNe1x6
14:09 jnettlet Not right at hand
14:10 jnettlet 😁
14:12 jnettlet They are up on my laptop. Will dig them out for you. The best one I found was scavenged from the inside of my boxee box. It was rated for 9 or 12 volts but runs happily at 5 volts and you would never know it was on.
14:12 jnettlet It is a 40mm fan
14:13 vpeter jnettlet: But you need a fan there too :D
14:13 jnettlet Yeah but bigger than 40mm. 38C right now.
17:16 vpeter Artox: Do you have any idea why with lede master I have random mac addreses of eth on every boot?
17:19 jnettlet vpeter, set the mac addresses in the u-boot env and save it
17:21 vpeter Seems this was changed between old version and this.
17:43 vpeter Done.
17:44 vpeter jnettlet: I have one strange problem with mini pcie wifi card. Sometimes it is recognized (lspci shows it) but most of the times it is not detected. What it could be?
18:18 Artox vpeter, old version?
18:18 Artox you mean our fork based on 4.4 kernel?
18:21 vpeter Yes, your fork from end of 2015. Mac address was fine there. But lede master gives random one.
18:22 Artox I can't remember if I did magic to force setenv on first boot
18:22 Artox It sure was a hack
18:22 Artox but Lede didn't like *any* of it
18:23 vpeter Windows reported new network on every clearfog reboot. Not nice.
18:23 Artox xDDDD
18:23 Artox well thats your Windows
18:24 Artox sometimes it is fun
18:24 vpeter and sometimes not
18:26 vpeter In such situations I'm very disappointed.
18:32 Artox I see
18:32 vpeter jnettlet: I forgot to tell you what was wrong with my UTP cable that didn't work with SFP module: connectors were mismatched (original end has T568B and other T568A).
18:33 vpeter Artox: Don't get me wrong - this statement was not intent to you, sr or others.
18:33 Artox I thought it was about Windows
18:33 vpeter It just indicates that hw is not meant for general public.
18:33 Artox either way, it is perfectly fine to disappointed in this mac address issue
18:33 Artox the way I solved it for the debian images is a pain