[Letux-kernel] Strange things happening with latest kernels

Andreas Kemnade andreas at kemnade.info
Thu Jun 13 18:33:03 CEST 2019


Hi,

On Thu, 13 Jun 2019 18:08:12 +0200
"H. Nikolaus Schaller" <hns at goldelico.com> wrote:

> > Am 13.06.2019 um 17:51 schrieb Andreas Kemnade <andreas at kemnade.info>:
> > 
> > On Thu, 13 Jun 2019 15:45:42 +0200
> > "H. Nikolaus Schaller" <hns at goldelico.com> wrote:
> >   
> >>> Am 13.06.2019 um 11:08 schrieb H. Nikolaus Schaller <hns at goldelico.com>:
> >>> 
> >>> 
> >>> Something which needs deeper inspection to understand the influencing
> >>> factors.    
> >> 
> >> As soon as I start X11, temperature goes up. Battery temp to 55.1°C and OMAP3
> >> reports 90°C during charging.
> >>   
> > Strange thing, Does it depend on how X is accessing the fb (omapfb vs. fbdev vs. modesetting
> > driver)? SGX active vs. not active.  
> 
> Have not yet tested into that direction. SGX is not compiled into any of the
> kernels I have tried.
> 
> Next thing is to test with LXDE or XfCE. And try a build with omap2plus_defconfig.
> 
maybe there are multiple problems working together to heat up omap3.
I doubt cpufreq alone causes such problems. But I will test, if
everything is idle, things should be powered down anyways regardless of
cpufreq

When I had a hot gta04 in the past, it was always at a bad time.
Touchscreen did not work. Last time was when I wanted to use the gta04
to show me the way from Brussels midi to my hotel for fosdem. That
was with 4.17 kernel.

Regards,
Andreas


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