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Old 01-07-2009, 06:58 AM   #1
ohadbasan
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screen turns black after several hours


Howdy.

I am using a toshiba A305 laptop.
this is a linux mint system but the problem occured also on ubuntu.
after a few hours of idle time (I'm away from the computer)
the screen turns black, and the only solution is a hard reset.
this isn't a hibernate or suspend since the computer's power is fully on.
only the screen is black and there's no way out.

does anyone have an idea?

10x!
 
Old 01-07-2009, 08:06 AM   #2
Simon Bridge
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switch acpi off and see if it recurrs.
check the logs.

This can be so many things ... even a wonky backlight.
 
Old 01-07-2009, 09:43 AM   #3
ohadbasan
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forgive me for the noob question but messages.log gives me uncomprehensive kernel messages.
in which log will i be able to see it?
 
Old 01-07-2009, 10:30 AM   #4
Simon Bridge
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Sorry - not psychic You'll have to read through them and try to understand.

You are looking for messages concerning acpi or screen or output close to the end of a log - may not even be an error.

Have you tried booting with noacpi?
 
Old 01-07-2009, 11:54 PM   #5
ohadbasan
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didn't seem to solve the problem
I also manually compiled the latest kernel 2.6.28
didn't solve it either.
but -
the following thread
https://bugs.launchpad.net/ubuntu/+bug/289581
is relevant to me too.
that might be related.
 
Old 01-08-2009, 12:53 PM   #6
DavidMcCann
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It sounds more like a hardware problem to me. Something that happens after a device has been running for some time, especially when it gets warm, is often due to a bad circuit.
 
Old 01-09-2009, 07:59 AM   #7
ohadbasan
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I've applied a patch that was offered in the bug thread.
since then - the problem did not occur.
seems like it was a bug in the iwlan module.
10x for everything dude!
 
Old 01-10-2009, 04:41 AM   #8
Simon Bridge
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Impressive! Well done and thanks for telling us what the eventual fix was.
 
  


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