I have same problem..
Mine is Acer Aspire 4736 with Intel GMA 4500M.
Linux - 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:50 UTC 2011 i686 i686
i386 GNU/Linux
I run this command under no-backlight condition on terminal (I still can read
my screen under flashlight):
sudo setpci -s 00:02.0 F4.
*** This bug is a duplicate of bug 779166 ***
https://bugs.launchpad.net/bugs/779166
I run this command under no-backlight condition on terminal (I still can read
my screen under flashlight):
sudo setpci -s 00:02.0 F4.B=00
and my back light is back!
but back light is off again after reboot, n
using "acpi_backlight=vendor" as kernel parameter doesn't work for me :(
however, some people found solution from this thread:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/752165
in my case, its true that I can get my backlight work again by using
setpci command and add it to my rc.local
*** This bug is a duplicate of bug 779166 ***
https://bugs.launchpad.net/bugs/779166
bumped.. :(
whenever i change my screen resolution, my screen got blank again..
it nearly almost one month for me, still no solution. :(
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I have same problem..
Mine is Acer Aspire 4736 with Intel GMA 4500M, and I did fresh install.
But I think my screen it's not completely blank.
It still display my screen, but with no backlight, I still can read my screen
under a flashlight.
It seems like my screen's backlight is not turned on or s
