On Tue, 19 Feb 2019 at 11:09, Sudheer Satyanarayana <sudheer@xxxxxxxxxxxxxx> wrote:
On 19/02/19 7:35 PM, Patrick O'Callaghan wrote:
> On Tue, 2019-02-19 at 18:32 +0530, Sudheer Satyanarayana wrote:
>> On 19/02/19 6:27 PM, George N. White III wrote:
>>> On Tue, 19 Feb 2019 at 02:50, Sudheer Satyanarayana <
>>> sudheer@xxxxxxxxxxxxxx <mailto:sudheer@xxxxxxxxxxxxxx>> wrote:
>>>
>>> Hello,
>>>
>>> I have installed Fedora 29 on Lenovo W540. The laptop overheats up
>>> soon
>>> after booting.
>>>
>>>
>>> You should make sure there isn't an accumulation of dust preventing
>>> proper cooling. At
>>> my work there were a bunch of Lenovo's that would overheat and crash.
>>> A good blast of
>>> canned air in the vents would release a cloud of dust and restore
>>> proper operation. This
>>> had to be done every few months (typical cubicle farm environment).
>>>
>> Initially, I suspected hardware issues like the one you mention. In
>> fact, I sent the device to Lenovo service center for the same issue. The
>> Lenovo folks inspected the hardware and found no issues with fan,
>> cooling, etc. Also, the same device doesn't have the overheating issue
>> on Windows and Ubuntu. It is something specific to Fedora.
> Something in the graphics driver?
Probably.
> What GPU does it have?
01:00.0 VGA compatible controller: NVIDIA Corporation GK106GLM [Quadro
K2100M] (rev a1)
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core
Processor Integrated Graphics Controller (rev 06)
> Is the same
> driver being used on Fedora and Ubuntu? (I'm reaching here).
Sorry, I do not have the information about what driver was used on
Ubuntu. The test was done by a colleague few days ago and they did use
the drivers that were available on stock installation of Ubuntu 18.10.
> Is the
> machine overheating even when idle?
Yes.
> Does it overheat if you boot to a
> text console rather than the DE?
I have not tested this. But I will soon and let you know how it goes.
Thanks for the idea.
> Is the DE using X or Wayland?
Wayland.
Were the tests run on the same or different boxes? If different, were the
BIOS versions the same (the link in my first post suggested a link between
BIOS version and overheating for this model).
How do you measure "overheating"? Is is just fans running at high speed
or does the air coming out the vent feel hot? How does the volume of air
compare to other systems?
Some malware uses hidden (stealth) processes. If the system is hot and
CPU is not busy then heat must be coming from some other component.
The Lenovo laptops I have used made it easy to get at the system board, but
I never tried running one with the system board exposed. If you can borrow
an IR camera you might identify hot spots down to the component. If you can't
run the system with the board exposed you might still see residual heat.
--
George N. White III
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