Intel GPU slowing down or stopping when the screen is turned off
21 Dec 2015 15:33:16 UTC
Topic 198350
(moderation:
I have a Dell XPS13 with an i5-6200U CPU. While the screen is turned on it completes Arecibo BRP4 GPU tasks in about 31 minutes each. However overnight it only completed 1 and a half tasks in about 8 hours. I've also had 3 BRP4 tasks reported as errors with extremely long run times (>8 hours each), and with the tasks reporting that they'd failed for exceeding a timeout. Oddly enough I don't recall any GPU tasks showing abnormal run times in boinc manager. The 3 error tasks do roughly correspond to intervals that the computer was unattended with the screen off (overnight Saturday, during the day Sunday, overnight Sunday). There are also 4 tasks that are inconclusive; and while there's nothing obviously weird in their upload reports, I'm wondering if they're tasks that the screen went to sleep on briefly but was woken up shortly afterwards while I was doing stuff on it.
and several others that are validate inconclusive
CPU performance seems unaffected, it's finished 12 (3 sets of 4) FGRP tasks, each taking 11 hours in the day and a half that it's been connected.
Intel GPU slowing down or stopping when the screen is turned off
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Ran for another 90 minutes or so before waking; two BRP4s completed. 1 pending validation, the second inconclusive. I'm planning to let it run 9 or 10 hours and see if I get another timeout fail.
Checking in after ~ 11 hours
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Checking in after ~ 11 hours I saw one BRP4 task that ran 9 hours before errorring one, one that finished after 30 minutes (normal runtime) and one that's at a bit over 2 hours and 99% done. The 30 minute one was validation inconclusive (presumably bad); and I'm keeping the laptop awake to see what happens with the one that ran up 2 hours on the clock while asleep.