From: Anthony Sorace <a@9srv.net>
To: 9fans <9fans@9fans.net>
Subject: Re: [9fans] Raspberry Pi 4 stability dependent in RAM
Date: Wed, 18 Nov 2020 15:13:13 -0800 [thread overview]
Message-ID: <861191CA-7AB2-4BF6-BD47-FFC89414C9A4@9srv.net> (raw)
In-Reply-To: <f1f1b57d071b801864a487621e482936@hamnavoe.com>
> Richard asked:
> The pi4 is very sensitive to power supply voltage. Are you using
> an "official" pi4 power supply (5.2v)?
Yes; same power supply on the 4GB and 1GB models. That is, same exact
unit, on the same outlet. I had all sorts of problems with my first several Pi
and know better than to mess around with that now.
> The pi4 flashes the red power LED to indicate undervoltage, so you can look
> out for that if you don't have a monitor to see the lightning bolt on.
Is this lightning bolt a hardware feature? Like, it overlays it on the display,
even on Plan 9? I've never seen it. I'll watch for the power LED indicator.
I've also got the bad behavior on two different 1GB models, so it's at least
pretty unlikely to be a hardware issue.
Then this went other places. Is anyone else running a 4GB Pi 4 with Richard's
latest kernel, successfully? Terminal or cpu?
------------------------------------------
9fans: 9fans
Permalink: https://9fans.topicbox.com/groups/9fans/Te91377223453b8c0-M1b624ba300accbe1272f6cbd
Delivery options: https://9fans.topicbox.com/groups/9fans/subscription
next prev parent reply other threads:[~2020-11-18 23:16 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-14 0:30 a
2020-11-14 0:56 ` a
2020-11-14 9:35 ` Richard Miller
2020-11-14 11:14 ` Steve Simon
2020-11-14 11:24 ` Richard Miller
2020-11-14 11:24 ` Richard Miller
2020-11-14 14:48 ` hiro
2020-11-14 15:05 ` Richard Miller
2020-11-14 15:12 ` hiro
2020-11-14 16:58 ` Bakul Shah
2020-11-14 18:12 ` hiro
2020-11-22 10:48 ` hiro
2020-11-23 22:46 ` [9fans] node-red Bakul Shah
2020-11-14 15:29 ` [9fans] Raspberry Pi 4 stability dependent in RAM Richard Miller
2020-11-14 16:15 ` hiro
2020-11-18 23:13 ` Anthony Sorace [this message]
2020-11-19 0:15 ` Thaddeus Woskowiak
2020-11-19 7:37 ` Steve Simon
2020-11-19 8:27 ` Skip Tavakkolian
2020-11-20 23:05 ` Stuart Morrow
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=861191CA-7AB2-4BF6-BD47-FFC89414C9A4@9srv.net \
--to=a@9srv.net \
--cc=9fans@9fans.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).