https://bugs.freedesktop.org/show_bug.cgi?id=73882
Priority: medium
Bug ID: 73882
Assignee: [email protected]
Summary: no backlight after suspend to ram with modesetting
Trinity [7400G]
QA Contact: [email protected]
Severity: normal
Classification: Unclassified
OS: Linux (All)
Reporter: [email protected]
Hardware: x86-64 (AMD64)
Status: NEW
Version: unspecified
Component: Driver/Radeon
Product: xorg
Created attachment 92523
--> https://bugs.freedesktop.org/attachment.cgi?id=92523&action=edit
dmesg 3.13
Everything else is still working, I can type. But there is no backlight. This
is without X running at all, kernel 3.13.
I can suspend and resume without modesetting, when I use --quirk-s3-mode and
--quirk-s3-bios *together*. I can't properly resume any other way so far
(except with fglrx).
Any hints would be very appreciated.
I've tried:
echo 1 > /sys/class/backlight/radeon_bl0/bl_power
echo 1 > /sys/class/backlight/acpi_video0/bl_power
echo 30 > /sys/class/backlight/acpi_video0/brightness
echo 30 > /sys/class/backlight/radeon_bl0/brightness
sleep 5
vbetool dpms off
vbetool dpms on
to no avail.
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