External VGA stopped working

[ciruliz]

Hi,

Approximately week or more ago my external VGA port stopped working - Catalyst control center detects new monitor attached, but there is no output signal (at least monitor says so). Monitor itself & cable is tested and works fine.

It seems that either it is hardware defect or recent windows update caused it. I am not sure how to test it. (Radeon drivers are dated back in 2009)

Config: 

Thinkpad T60 (2007-66G)

WinXP Pro 32bit

ATI Radeon Mobility X1400

[lead_org Microsoft MVP Contributor]

try to reupdate the bios

[ciruliz]

ok, I actually updated BIOS (latest version 2010-Apr) but still no luck.

[lead_org Microsoft MVP Contributor]

how about a downgrade of the bios?

Also, try to switch to vga + internal in your bios under display. Boot the laptop with the internal LCD closed, does anything come up on the external LCD?

[ciruliz]

hmm, i didn't try downgrading the bios, but I switched vga+lcd mode in bios settings and tried to boot on. nothing on external display it seems like a hardware fault ? 

[lead_org Microsoft MVP Contributor]

that is a possibility.