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* No realtime clock (/dev/rtc) on new ThinkPad X1
@ 2020-01-17  3:46 Jeff Chua
  2020-01-17  4:16 ` Jeff Chua
  0 siblings, 1 reply; 3+ messages in thread
From: Jeff Chua @ 2020-01-17  3:46 UTC (permalink / raw)
  To: lkml

Got installed Linux 5.5.0-rc6 on ThinkPad X1. CPU is i7-10510U (Comet
Lake) ... and /dev/rtc is missing.

Linux is latest git pull (f4353c3e2aaf7f7d3c5a18271b368bf5292854c3)
CPU model name      : Intel(R) Core(TM) i7-10510U CPU @ 1.80GHz

Am I missing something?

My best.,
Jeff

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: No realtime clock (/dev/rtc) on new ThinkPad X1
  2020-01-17  3:46 No realtime clock (/dev/rtc) on new ThinkPad X1 Jeff Chua
@ 2020-01-17  4:16 ` Jeff Chua
  2020-01-19  9:26   ` Jeff Chua
  0 siblings, 1 reply; 3+ messages in thread
From: Jeff Chua @ 2020-01-17  4:16 UTC (permalink / raw)
  To: lkml

On Fri, Jan 17, 2020 at 11:46 AM Jeff Chua <jeff.chua.linux@gmail.com> wrote:
>
> Got installed Linux 5.5.0-rc6 on ThinkPad X1. CPU is i7-10510U (Comet
> Lake) ... and /dev/rtc is missing.
>
> Linux is latest git pull (f4353c3e2aaf7f7d3c5a18271b368bf5292854c3)
> CPU model name      : Intel(R) Core(TM) i7-10510U CPU @ 1.80GHz
>
> Am I missing something?

I can confirm that the same kernel works on another ThinkPad (tried on
P53 with i7-9750H) but not on X1.

Jeff.

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: No realtime clock (/dev/rtc) on new ThinkPad X1
  2020-01-17  4:16 ` Jeff Chua
@ 2020-01-19  9:26   ` Jeff Chua
  0 siblings, 0 replies; 3+ messages in thread
From: Jeff Chua @ 2020-01-19  9:26 UTC (permalink / raw)
  To: lkml

Fixed. Upgraded Lenovo firmware to N2QET18W (1.12 ).

Now /dev/rtc0 shows up!

My best.,
Jeff

On Fri, Jan 17, 2020 at 12:16 PM Jeff Chua <jeff.chua.linux@gmail.com> wrote:
>
> On Fri, Jan 17, 2020 at 11:46 AM Jeff Chua <jeff.chua.linux@gmail.com> wrote:
> >
> > Got installed Linux 5.5.0-rc6 on ThinkPad X1. CPU is i7-10510U (Comet
> > Lake) ... and /dev/rtc is missing.
> >
> > Linux is latest git pull (f4353c3e2aaf7f7d3c5a18271b368bf5292854c3)
> > CPU model name      : Intel(R) Core(TM) i7-10510U CPU @ 1.80GHz
> >
> > Am I missing something?
>
> I can confirm that the same kernel works on another ThinkPad (tried on
> P53 with i7-9750H) but not on X1.
>
> Jeff.

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2020-01-19  9:33 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2020-01-17  3:46 No realtime clock (/dev/rtc) on new ThinkPad X1 Jeff Chua
2020-01-17  4:16 ` Jeff Chua
2020-01-19  9:26   ` Jeff Chua

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