| ogra_ | cking, hey ... so i found the issue of my overheating laptop ... (though it still is beyond me why it started *exactly* with the upgrade to vivid) ... obviously a 1cm thick filth blob at the fan intake isnt really helping to cool the CPU ... | 13:18 |
|---|---|---|
| ogra_ | (took me a week to get the right wrench to even open that XPS13 properl) | 13:19 |
| ogra_ | i havent tried switching back to thermald control yet, but i guess it will be fine | 13:19 |
| ogra_ | read: i think we can close the bug | 13:19 |
| cking | ogra_, ah, it should be fine w/o thermald if you have cleaned out the fan | 13:19 |
| cking | http://smackerelofopinion.blogspot.co.uk/2010/09/hot-laptop.html | 13:19 |
| cking | it's happened to us all | 13:20 |
| ogra_ | well, the thing is that the dveic ebehaved totally fine before the upgrade ... | 13:20 |
| ogra_ | uh, my typing ... | 13:20 |
| cking | ogra_, vivid works hard to make sure you CPU does not cook, so I think the scaling was trying to do this and not working well because the thermal gradients were not as it expected | 13:21 |
| ogra_ | but yeah, my fan intake looked similar :) | 13:21 |
| ogra_ | ah ! | 13:21 |
| cking | the passive cooling expects some kind of heating/cooling characteristic, but if the CPU is on fire it will just ramp down fast then give you all sorts of odd up/down speed changes | 13:22 |
| ogra_ | yeah, now i understand | 13:22 |
| cking | i'm glad it resolved it. i7's are probably the worst headache as they dump a lot of heat very quickly into the thermal zone | 13:23 |
| ogra_ | yeah, and the old XPS13 having a teeny weeny fan and heatpipies going everywhere through the case doesnt really help the case :) | 13:25 |
| cking | ogra_, i guess manufacturers need to run stress-ng to see if their laptop thermal designs are OK ;-) | 13:27 |
| ogra_ | well, i'm sure it is ok if it comes out of the factory ... they should be obligated to do tests after 1-2 years of usage ;) | 13:27 |
| cking | ogra_, care to update bug 1460399 with your findings, I think we should close that one now :-) | 13:39 |
| ubot5 | bug 1460399 in linux (Ubuntu Vivid) "ivybridge system gets completely unusable after upgrade to vivid thanks to defaulting to immature intel_pstate driver" [High,Confirmed] https://launchpad.net/bugs/1460399 | 13:39 |
| ogra_ | cking, yeah, closing it (there was someone else moaning in a comment, i guess he should open a new one) | 13:40 |
| cking | definitely | 13:41 |
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