From: Pavel Machek <pavel@ucw.cz>
To: "Maciej W. Rozycki" <macro@orcam.me.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
linux@leemhuis.info,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Bricked Thinkpad x220 with 6.12-rc0
Date: Mon, 30 Sep 2024 09:23:59 +0200 [thread overview]
Message-ID: <ZvpSD127BexmugnX@duo.ucw.cz> (raw)
In-Reply-To: <alpine.DEB.2.21.2409290048590.21893@angie.orcam.me.uk>
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Hi!
> > > > When I press power button, it starts producing some noise (hdd
> > > > spinning up), but power light goes pulsating, not on, and I stare at
> > > > black screen.
> > >
> > > No beep?
> >
> > No beep. And no beep when I tried booting with RAM removed.
>
> According to:
> <https://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/x220_x220i_x220tablet_x220itablet_ug_en.pdf>
> pulsating power-on LED indicates the sleep mode:
>
> "The power switch stays lit whenever the computer is on, blinks when the
> computer is in sleep (standby) mode, and is off when the computer is
> off."
So... I disconnected CMOS battery and now I have two different
blinking patterns. I googled a bit, and it seems it is symptom of some
PROM failing. So likely Linux had nothing to do with this, and sorry
for the noise.
I have X230 now. Suspend/resume works without bricking it with
(different?) 6.12-rc0. I hate the keyboard, and X230 came with bad
battery and won't charge X220's battery (bad Lenovo!!), so I got
another X220. If this one dies with blinking LED, I'll certainly let
the world know.
Best regards (and thanks for all the help),
Pavel
--
People of Russia, stop Putin before his war on Ukraine escalates.
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next prev parent reply other threads:[~2024-09-30 7:24 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-26 20:00 Bricked Thinkpad x220 with 6.12-rc0 Pavel Machek
2024-09-26 20:27 ` Linus Torvalds
2024-09-26 20:52 ` Pavel Machek
2024-09-27 9:50 ` Harald Arnesen
2024-09-29 0:30 ` Maciej W. Rozycki
2024-09-30 7:23 ` Pavel Machek [this message]
2024-09-30 11:40 ` Maciej W. Rozycki
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