Arch Linux

crumbly

Member

Registered: 2013-03-30

Posts: 5

no backlight after sleep mode

Hi, i know this this is a common issue but I just cant fix it.
I have an Acer Aspire One 756 with arch + KDE. I search and tried several solutions but nothing really works.
I added "acpi_backlight=vendor" to grub2 and I was able to fix my FN-Keys. But when I wake up after sleep mode the screen still stays black.
But when I log in again and adjust the brightness via FN-Key the display goes back on. But only when I'm logged in, on my log in screen it's not working. It would be great if it could turn on automatically.
I hope that maybe somebody could give me some other possible solutions.
Thanks.

65kid

Member

From: Germany

Registered: 2011-01-26

Posts: 663

Re: no backlight after sleep mode

This has been fixed in kernel 3.8.5 which is already in [testing].

crumbly

Member

Registered: 2013-03-30

Posts: 5

Re: no backlight after sleep mode

oh okay. Then I have to wait for it . Do you know how long it takes till it is in the core repo?

Last edited by crumbly (2013-03-30 19:12:24)

65kid

Member

From: Germany

Registered: 2011-01-26

Posts: 663

Re: no backlight after sleep mode

oh okay. Then I have to wait for it . Do you know how long it takes till it is in the core repo?

Minor kernel updates usually hit core within a couple of days unless some other problems come up.