| 16:58 | ngochai | Hi guys, I'm thinking of getting a i4pro but after reading this thread http://www.solid-run.com/community/topic1300-10.html, I'm confused, is the heat sink still a problem now? |
| 16:59 | ngochai | if I buy a carrier and a quad core SoM, does Solidrun provide a heat sink for it? |
| 17:21 | jnettlet | ngochai, it is recommended to use a heatsink and yes it is included with the SOM |
| 17:48 | ngochai | jnettlet, so the quadcore SoM works fine with the provided heatsink (as the dual core)? I don't have to worry about making my own heatsink |
| 17:48 | ngochai | ? |
| 17:51 | jnettlet | ngochai, yes. If you push it really hard it will start to clock down the cpu-speed but really pushing all four cores and the gpu the cpu-speed tends to level out at 1ghz and occasionally dipping down to 800Mhz |
| 17:52 | jnettlet | but this is pushing everything as hard as possible for extended periods of time. |
| 18:00 | topi` | jnettlet: is it possible to power down (e.g. disable the voltage rails) the GPU in order to save some power? |
| 18:01 | topi` | we probably want to run Xorg, but on the framebuffer, without any accel |
| 18:01 | jnettlet | topi`, if you aren't using the GPU it powers itself down |
| 18:01 | topi` | ok |
| 18:01 | jnettlet | if the GPU doesn't do anything for 300ms it clocks off and power gates |
| 18:02 | jnettlet | that is per GPU core as well |
| 18:04 | jnettlet | but the big things to generate heat are crank on the 3D core and run NEON on all the cores. |
| 18:04 | jnettlet | that heats things up real fast |
| 18:32 | Exaga | and pizza straight from the oven |
| 19:15 | ngochai | thank you jnettlet, I will order one to try out |
| 19:16 | ngochai | I keep getting is 12.847370] Unhandled fault: external abort on non-linefetch (0x018) at 0x76dfe000 in my dmesg (hummingboard i2ex, kernel 3.14.14+) is this something to worry about? |
| 19:16 | ngochai | I keep getting *this |
| 19:36 | Exaga | ngochai: trying to read memory that is not mapped perhaps? |
| 19:57 | ngochai | Exaga, is this a kernel/module bug or this is user space thing? |
| 20:36 | Exaga | what does the unhandled fault relate to? |
| 20:56 | ngochai | Exaga, it just shows up out of the blue in my dmesg |
| 21:00 | Exaga | what comes before and goes after it? |
| 21:12 | ngochai | Exaga, dmesg http://pastebin.com/8wKddTCq it's at the end |
| 21:16 | Exaga | looks like one of your video modes is causing it |
| 21:22 | ngochai | Exaga, it still happens after I unplug HDMI cable: http://pastebin.com/4h9wxZc9 |
| 21:22 | Exaga | to be honest, unless it's causing problems, I would ignore it :> |
| 21:23 | ngochai | Exaga, alright |
| 21:23 | ngochai | thanks |
| 21:23 | Exaga | no worries my friend :> |