Acer 7520 laptop screen goes black after windows logo during boot

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WiiWii

Thread Starter
Joined
Jan 2, 2007
Messages
6
Hello,

I am working on an Acer laptop that boots normally except for the screen going blank after the windows loading logo in Windows 7. It does the same when booting to a Windows install disc. It gets past the initial screen when copying files and then goes blank. When connected to a second monitor, the monitor shows "video out of range". I tried booting to safe mode and vga mode with no luck on both monitors. The system loads into windows desktop as I can hear the sounds and I can power down using the start menu blindly. The display works fine in the system BIOS and during the initial boot from disc or hard drive. I am thinking the internal video card is bad but want to explore other options before giving up.

So far I have:
Tested all hardware
Cloned a drive from another machine with a good OS
Tried both the original Windows Vista OS and a new copy of Windows 7 from both CD and hard drive
Booted to VGA mode and safe mode
Reset BIOS to defaults

Please help me get this stubborn laptop to boot normally!
 

dai

Joined
Mar 6, 2003
Messages
11,198
nothing on a external monitor indicates the video chip has gone
 

managed

Allan
Trusted Advisor
Spam Fighter
Joined
May 24, 2003
Messages
14,227
If the video chip had gone wouldn't there be no display at all ? OP says display is there at switch on and through post etc

Having said that I don't know why the display is going off.
 
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