From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 81382] Text console blanking does not go away
Date: Tue, 21 Apr 2015 20:05:52 +0000 [thread overview]
Message-ID: <bug-81382-502-OSa3LtYeGB@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-81382-502@http.bugs.freedesktop.org/>
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https://bugs.freedesktop.org/show_bug.cgi?id=81382
--- Comment #34 from Christophe Migliorini <mig+freedesktop@chene.vingt-et-un-cinq.fr> ---
Hi, it took me quite some time to get here, but hopefully you can still solve
my problem.
I'm running a 2006 Intel iMac (Core Duo) under Unbuntu 12.04LTS server, which
sits on my desk and almost never log to the console, which would normally go
blank a few minutes after boot.
There is strong evidence that this patch found its way to my "stock" kernel
back in september 2014, and since then my iMac exhibits the following behaviour
after boot:
- whenever the console blanking activates, backlight goes to MAX (with my LCD
screen going all strange and overheating — even causing fans to blow)
- only way out is to echo 0 > /sys/class/backlight/radeon_bl0/brightness —
which I 'crontabbed' but is not exactly satisfactory.
- any other value causes the backlight to go all the way up and overheat.
I did try to "echo 1 > /sys/class/backlight/acpi_video0/brightness" today, and
that caused the iMac to reboot.
I have not experimented anything else, but would be happy to help.
uname is "Linux xxx 3.13.0-49-generic #81~precise1-Ubuntu SMP Wed Mar 25
16:32:40 UTC 2015 i686 i686 i386 GNU/Linux"
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next prev parent reply other threads:[~2015-04-21 20:05 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-15 11:25 [Bug 81382] New: Text console blanking does not go away bugzilla-daemon
2014-07-15 12:29 ` [Bug 81382] " bugzilla-daemon
2014-07-15 13:37 ` bugzilla-daemon
2014-07-15 13:55 ` bugzilla-daemon
2014-07-15 14:24 ` bugzilla-daemon
2014-07-15 14:33 ` bugzilla-daemon
2014-07-16 18:26 ` bugzilla-daemon
2014-09-05 20:58 ` bugzilla-daemon
2014-09-10 20:34 ` bugzilla-daemon
2014-09-11 10:42 ` bugzilla-daemon
2014-09-11 13:58 ` bugzilla-daemon
2014-09-12 22:40 ` bugzilla-daemon
2014-09-13 20:43 ` bugzilla-daemon
2014-09-15 20:41 ` bugzilla-daemon
2014-09-15 20:47 ` bugzilla-daemon
2014-09-16 7:00 ` bugzilla-daemon
2014-09-16 7:01 ` bugzilla-daemon
2014-09-16 7:02 ` bugzilla-daemon
2014-09-16 7:17 ` bugzilla-daemon
2014-09-17 1:00 ` bugzilla-daemon
2014-09-17 1:04 ` bugzilla-daemon
2014-09-17 7:07 ` bugzilla-daemon
2014-09-17 15:38 ` bugzilla-daemon
2014-09-17 15:39 ` bugzilla-daemon
2014-09-17 16:42 ` bugzilla-daemon
2014-09-18 7:54 ` bugzilla-daemon
2014-09-18 13:09 ` bugzilla-daemon
2014-09-18 13:10 ` bugzilla-daemon
2014-09-18 19:27 ` bugzilla-daemon
2014-09-18 19:28 ` bugzilla-daemon
2014-09-19 13:14 ` bugzilla-daemon
2014-09-19 15:38 ` bugzilla-daemon
2014-09-19 15:40 ` bugzilla-daemon
2014-09-19 16:20 ` bugzilla-daemon
2014-09-27 21:36 ` bugzilla-daemon
2014-09-28 0:40 ` bugzilla-daemon
2015-04-21 20:05 ` bugzilla-daemon [this message]
2015-04-21 20:11 ` bugzilla-daemon
2015-04-21 20:27 ` bugzilla-daemon
2015-04-22 9:32 ` bugzilla-daemon
2015-04-23 6:02 ` bugzilla-daemon
2015-04-23 14:12 ` bugzilla-daemon
2015-04-23 14:15 ` bugzilla-daemon
2015-04-24 13:59 ` bugzilla-daemon
2016-08-13 12:01 ` bugzilla-daemon
2016-08-15 13:40 ` bugzilla-daemon
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