It looks like upgrading to the 3.9.2 kernel fixes the issue. I think I have had a few more kernel updates since I last tested it, but it definitely works with 3.9.2 (for me).
3.9.X solved for me too
]]>[...]
Anyway I suspected it wasn't arch related, thank you all for the answers! I'll see if I'm able to file a bug report, it's my first time
Have you filed a bug report for this? If so, can you post it here? Thanks!
]]>ewaves wrote:Indeed it's a EFI boot!
Assuming what you stated it's a efi compatibility issue, it makes me wonder why it's only the two of us complaining about this.
Anyway downgrading to 3.7.X worked for me, but it's not a solution, and I hope someone with more kernel knowledge notices this thread.
PS sorry for the late answer, I didn't noticed the mailModerator: In case you are wondering where your post went..... You hit the 'report' link, not the 'reply' link. It happens.
Dammnit! Thank you so much, I intended to press "quote", haste and a not-so-well-working trackpad did the rest.
Anyway I suspected it wasn't arch related, thank you all for the answers! I'll see if I'm able to file a bug report, it's my first time
]]>Indeed it's a EFI boot!
Assuming what you stated it's a efi compatibility issue, it makes me wonder why it's only the two of us complaining about this.
Anyway downgrading to 3.7.X worked for me, but it's not a solution, and I hope someone with more kernel knowledge notices this thread.
PS sorry for the late answer, I didn't noticed the mail
Moderator: In case you are wondering where your post went..... You hit the 'report' link, not the 'reply' link. It happens.
]]>Some info about my pc:
$ lspci | grep VGA
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Whistler XT [AMD Radeon HD 6700M Series]
$ uname -r
3.8.4-1-ARCH
Any thoughts?
]]>The same problem occured on my laptop today.
In my case I've replaced xf86-video-intel-git with the xf86-video-intel pkg from extra, then addedacpi_backlight=vendor
to the kernel in grub.cfg.
After that I ranmkinitcpio -p linux
and lvds was recognized after a reboot.
This changed absolutely nothing. I added "acpi_backlight=vendor" to my kernel line and did a mkinitcpio, reboot and nothing, same as before
]]>acpi_backlight=vendor
to the kernel in grub.cfg.
After that I ran
mkinitcpio -p linux
and lvds was recognized after a reboot.
]]>