Comment # 13
on bug 1203404
from Uwe Michael Scheffer
(In reply to Karl Mistelberger from comment #10)
> (In reply to Uwe Michael Scheffer from comment #8)
> > I have a multi-bootable SSD with TW, Leap-15.4 (with 3 kernels to choose
> > from) and Leap 15.3 systems on it. Leap 15.3 always goes to idle temp 45���C,
> > Fan level 0, however, the TW and Leap-15.4 systems both show the 60���C idle
> > temp issue. Installing 15.3 Kernels on a virginly installed Leap 15.4 system
> > does not help with the 60���C idle temps. And remember you CAN see 45���C idle
> > temps, fan level 0, too, on the latter systems, however, only erratically
> > with a "mesasured" probabaility of ~ 25%. So, these are the current results.
> > What do you make of them, what do you especially make of the stochastic
> > behavior?
>
> Did you try the SSD on an other ThinkPad? Given the shaky behaviour I would
> check whether it occurs on other hardware too.
Today, I tried with a different SSD (of exactly the same type) on a different
ThinkPad W530 (same type, too) and got similar results, however not quite the
same. Leap-15.4 neither on btrfs nor on ext4 would reach 45���C and the fan would
never relax to level 0. So with Leap-15.4 there was always the 60���C idle temp
issue.
With Leap-15.3 there was a surprise, on this ThinkPad temperatures would cease
to 45���C only in 50% in about 10 reboots, the other 50% temperatures would stay
above 55���C near 60���C, fan would wander between level 1 and level 2, but never
would cease to level 0.
Here's a table showing the results of days of installations and runs.
## 60���C Idle Temperatures Issue on ThinkPad W530
---
Device (A) vs Device (B)
Leap-15.3 vs Leap-15.4
SSD vs Live-System
btrfs vs ext4
---
Thinkpad (A) -> Leap-15.4 -> SSD -> btrfs 60���C = 75% / 45���C = 25%
Thinkpad (A) -> Leap-15.4 -> SSD -> ext4 60���C = 75% / 45���C = 25%
Thinkpad (A) -> Leap-15.4 -> Live -> ext4 60���C = 0% / 45���C = 100%
Thinkpad (A) -> Leap-15.3 -> SSD -> btrfs 60���C = 0% / 45���C = 100%
Thinkpad (A) -> Leap-15.3 -> SSD -> ext4 N.E.
Thinkpad (A) -> Leap-15.3 -> Live -> ext4 N.E.
---
Thinkpad (B) -> Leap-15.4 -> SSD -> btrfs 60���C = 100% / 45���C = 0%
Thinkpad (B) -> Leap-15.4 -> SSD -> ext4 60���C = 100% / 45���C = 0%
Thinkpad (B) -> Leap-15.4 -> Live -> ext4 60���C = 0% / 45���C = 100%
Thinkpad (B) -> Leap-15.3 -> SSD -> btrfs 60���C = 50% / 45���C = 50%
Thinkpad (B) -> Leap-15.3 -> SSD -> ext4 N.E.
Thinkpad (B) -> Leap-15.3 -> Live -> ext4 N.E.
---
Thanks for reading,
Regards, M.