Gentoo Archives: gentoo-user

From: Tsukasa Mcp_Reznor <mcp_reznor@×××××××.com>
To: "gentoo-user@l.g.o" <gentoo-user@l.g.o>
Subject: Re: [gentoo-user] Root on NFS Suspend/Resume support
Date: Fri, 14 Dec 2018 20:37:50
Message-Id: DM5PR15MB172217C9EE8BE17592F1BA33F0A10@DM5PR15MB1722.namprd15.prod.outlook.com
In Reply to: Re: [gentoo-user] Root on NFS Suspend/Resume support by Daniel Frey
1 Have you checked the power supply?
2
3 I don't use a diskless setup but last year (nah, maybe many years ago) I
4 had this strange resume problem after suspend. As in, I'd wake the
5 machine and it'd sit there with a blinking text cursor in text mode,
6 quite stuck. I am pretty sure I posted about it on the list here.
7
8 It turned out that when my machine was running the power supply was
9 fine. However, when I suspended it, the 5V rail would bleed voltage. So,
10 I discovered if I resumed within, say, 5 minutes after suspending my
11 machine it would wake normally. After that though, I'd get the blinking
12 cursor and it would hang resuming.
13
14 I confirmed that the 5V rail was bleeding voltage when in suspend with
15 my voltmeter. It turned out to be bad capacitors in the power supply.
16
17 Just a suggestion...
18
19 Dan
20
21
22 I appreciate the tip, if I boot off a hard drive on my main desktop it does indeed sleep/resume just fine, and it was the source of every file that got sent to the network when I started converting to diskless, maybe I'll throw in small livedvd install and check again.
23
24 If it helps, when I'm in LXDE and have just a terminal open with top running, when the screen comes back on, top will update just ONCE before freezing, I can move the mouse cursor, num lock toggles, I can drag the terminal window around, if I try to switch vt2 or anything else like load a previously uncached menu from the taskbar then it never loads or switches. So it's definately (to my eyes at least) I problem with the nfs connection, I don't believe the NIC is powering down as I turned on wake on lan, but I'll test and make sure tonight, and aside from blacklisting kernel modules I have yet to find a way to tweak the resume/suspend functions but I'm still looking for more information when I have free time.