monitors gone dark

Kharakmeister

Junior Member
Jan 20, 2014
2
0
0
Hi Guys,

I've got an painful issue, so I'am asking your help and opinions.
Recently I've just attached a secondary display to my laptop (what has been established with forced detection, normally Win7 haven't seen it.) and after a few hours proper working, both of my displays vent dark. I've been using it in extend mode. (System didn't stalled)

I rebooted inmediatly:
1: Windows in normal mode doesn't show any picture on primary. On 2ndary after windows logo appears it goes dark again.
2: Backtrack Linux starts normally on the 2ndary but can't detect my primary laptop screen.
3: Windows safe mode: Same as Backtrack

Half an hour after everything had looked fine, but after a few hours of working did the same again. Now i'm using it without 2nd monitor. So far it seem working this way.
I wonder how can a 2nd display trigger these kind of issues.

pri: 1366*768
sec: 1240*1024

Windows 7 Ultimate SP1
Backtrack 5 R3

Dell Inspiron N5110 (almost 3 years old)
Core I7 2630QM Sandy Bridge
DDR3 8GB
Intel HD Graphics 3000 (proc integrated)
nVidia Geforce GT 525M

LG Flatron L1752T
plugged with VGA

(My primary screen has been replaced in december because of a crash.)

Best regards and thank you in advance!
 
Last edited:

KingFatty

Diamond Member
Dec 29, 2010
3,034
1
81
Maybe check to see if this is a temperature issue, because if it starts out fine and then takes some time to have a problem, that is how heat will build up. Maybe the cooler is clogged with dust and you need to disassemble the laptop to really get it all out? Or maybe the heatsink is designed to where you can fully clean it by just spraying compressed air into it, without needing to disassemble the whole laptop.

Ideally you can run a monitoring utility to observe your temperatures, and see if the temperature keeps increasing until you reach a threshold problem temp.

Also you seem to have 2 graphics outputs, the Intel and the nVidia. Can you control which you are using? Maybe only use the first one, and see if the problem goes away. Repeat with only using the second one.
 

Kharakmeister

Junior Member
Jan 20, 2014
2
0
0
Hi KingFatty,

My machine is sitting on a coolpad with a big fan, it's been recently cleaned inside (december).

Without 2nd stuff I don't face with this blackout.

I've set Intel as prferred VGA card on nVidia Control Panel (formerly it was auto select but without any stronger 3D activity Geforce remains silent)


I haven't noticed any overheating anywhere connected with display issue, but from now I check system temerature via HWmonitor.
Is it possible to gain some information about display tmperature via the operating system? If it is, please let me know.

(Sometimes i play Skyrim when system temerature gets considerably increased but this doesn't affect the display.)

Thanks for your reaction