From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 81382] Text console blanking does not go away
Date: Wed, 10 Sep 2014 20:34:05 +0000 [thread overview]
Message-ID: <bug-81382-502-iKPC8azuQ1@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 #8 from Daniel Kirsten <daniel-kirsten-72@excite.com> ---
The above patch causes a problem on my Amilo Xi 2550 (RadeonHD 2600).
The behaviour for kernel-3.14.8-100.fc19 (without patch):
The value of /sys/class/backlight/radeon_bl0/brightness is 0.
Whenever I write something (0-255) to
/sys/class/backlight/radeon_bl0/brightness,
the backlight is turned off, and I am not able to turn on the backlight again.
However, I can still shutdown the system (Ctr+Alt+Fx, login as root, and give a
shutdown command.
I can control the backlight by writing values 0-7 to
/sys/class/backlight/acpi_video0/brightness.
The behaviour for kernel-3.14.17-100.fc19 (with patch):
The backlight is turned off during the boot up process, when the kernel
switches into
graphics mode.
I commented out the lines 233-234 in
drivers/gpu/drm/radeon/atombios_encoders.c,
and then, the problem disappeared, i.e., the backlight stays on when the kernel
switches
into graphics mode.
Best regards,
Daniel
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next prev parent reply other threads:[~2014-09-10 20:34 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 [this message]
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
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2014-09-16 7:00 ` bugzilla-daemon
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2014-09-27 21:36 ` bugzilla-daemon
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