[Bug 55311] Since 3.7.1-17.1 radeon has no backlight when using vgaswitcheroo (regression)

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=55311

--- Comment #75 from jimis hol <hol.jimis at gmail.com> ---
I have about a month i can't bring back from black screen my CEDAR. But last
times it was worked, in order to be able to change brightness i had to put ON
both cards. So, if you are lucky to use your dgpu try echo "ON" >
/sys/kernel/debug/vgaswitcheroo/switch

-- 
You are receiving this mail because:
You are on the CC list for the bug.