Gentoo Archives: gentoo-user

From: Alan McKinnon <alan.mckinnon@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Console won't un-blank
Date: Fri, 18 Oct 2013 04:54:09
Message-Id: 5260BDAC.1070607@gmail.com
In Reply to: [gentoo-user] Console won't un-blank by "Michael J. Barillier"
1 On 18/10/2013 03:02, Michael J. Barillier wrote:
2 > If I leave my laptop unattended (at a console, not X) and the screen
3 > blanks, pressing a key won't un-blank the terminal. As a test, I ssh'ed
4 > into the laptop and ran:
5 >
6 > # setterm -blank poke >/dev/tty$N
7 >
8 > (as root, for the current/active TTY) which according to the man page
9 > should restore the screen - no response. Also tried chvt but that
10 > didn't work either. Any suggestions on where to look to see why the
11 > terminal won't restore? Is this a kernel config (ACPI?) issue, or an
12 > agetty issue?
13 >
14
15
16 What video hardware are you using, and what driver?
17
18 I've had similar issues in the past myself with a variety of causes:
19
20 - dodgy versions of mesa
21 - dodgy versions of video drivers (both nouveau and radeon)
22 - incorrect kernel settings, usually getting KMS wrong
23 - incompatible combinations of framebuffer and KMS
24
25 I don't recall any case where the problem was purely userland and the
26 kernel systems were not involved
27
28 hth
29
30 --
31 Alan McKinnon
32 alan.mckinnon@×××××.com