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Old 12-25-2011, 11:28 AM   #1
malloc
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Registered: Jul 2010
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Black/blank display during booting


I have a computer with the "Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)".

When I boot this system, the display turns black/blank when it is roughly half-way done. The display remains blank indefinitely. The only way to make the display come to life is to start X.

I have taken a torch to the display and looked at different angles to try determine if the backlight is not turned on but the display is turned on -- it is not. I cannot see anything and the display itself appears to be turned off.

I use a custom kernel compiled with KMS support. I have to use KMS to get X to start, but when I use KMS, I get this problem with the display being blank during most of the booting. Why is this? I have spent the last 12 hours trying various kernel configurations and tricks but I cannot make it work.

Interestingly if I start X, then switch back to a console terminal it works perfectly fine and remains working.
 
Old 12-25-2011, 01:04 PM   #2
dr.s
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Registered: Feb 2010
Distribution: Slackware64
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Had a similar issue, probably due to a kernel bug (see links below for details).
Either of the following worked on my laptop:
-Using the laptop's brightness control to restore (Fn + F3 keys)
-Adding this kernel parameter:
Code:
acpi_backlight=vendor
http://www.linuxquestions.org/questi...3-37-a-882680/

http://www.linuxquestions.org/questi...tartup-892419/

Last edited by dr.s; 12-25-2011 at 01:06 PM.
 
Old 12-25-2011, 01:38 PM   #3
malloc
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Registered: Jul 2010
Posts: 111

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Quote:
Originally Posted by dr.s View Post
Had a similar issue, probably due to a kernel bug (see links below for details).
Either of the following worked on my laptop:
-Using the laptop's brightness control to restore (Fn + F3 keys)
-Adding this kernel parameter:
Code:
acpi_backlight=vendor
http://www.linuxquestions.org/questi...3-37-a-882680/

http://www.linuxquestions.org/questi...tartup-892419/
Thanks but this does not yield any different results.

I have tried both with the argument (acpi_backlight=vendor) to the kernel and by using the Fn keys to manipulate the backlight. Once I'm inside X I can adjust the backlight, but in the console the display remains turned off.

I don't use the stock kernel, I use a custom 3.1.6 kernel I configured for this particular machine. I have also upgraded the BIOS to the latest version for the laptop (Asus X53SV) however that didn't do anything.
 
  


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