Public bug reported:
Since upgrading to Yakkety, I noticed youtube ad vimeo videos slow down
and stutter after a few minutes but it didn't seem to be due to
buffering.
dmesg logs hinted that some sort of throttling was happening.
I tried stopping thermald and that seems to help. sensors reports the
CPU temperature is a bit higher with thermald disabled (91-2C vs 87C)
but I'd rather have my laptop run a little hot than be unusable for
watching videos. Since it's a mobile part, the rated max temperature
for my CPU is 105C so it seems like thermald is taking drastic
throttling action while there's still quite a bit of headroom.
Obviously, it'd be great if I could watch youtube at 65C instead!
CPU is an i7-3517U, Samsung NP900X4C-A03US laptop.
I've tried with and without "intel_pstate" enabled with similar results.
Fan is working as expected: seems to spin up high when it's hot and shut
off when it's cool. I tried cleaning out the case but it made no
difference and the fan doesn't seem dirty (it's small and ducted though
so I can't really clean it).
ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: thermald 1.5.3-4
ProcVersionSignature: Ubuntu 4.8.0-37.39-generic 4.8.16
Uname: Linux 4.8.0-37-generic x86_64
ApportVersion: 2.20.3-0ubuntu8.2
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Feb 3 22:30:38 2017
InstallationDate: Installed on 2012-09-26 (1591 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120905.2)
SourcePackage: thermald
UpgradeStatus: Upgraded to yakkety on 2017-01-23 (10 days ago)
** Affects: thermald (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug yakkety
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https://bugs.launchpad.net/bugs/1661764
Title:
Videos stutter with thermald enabled
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