On board,Display comes when external monitor conected

[ravi_1617]

Hi , This hcl laptop display comes onboard lcd when external monitor is connected,all though there is no external display .
H-sink, V-sink not found
RGB color signals were present
Board detail below
its VIA chipset laptop
i also need circuit if any one can
TF041-TH- PCB-PWA-8615P/M BD

Thanks

[ravi_1617]

Re: On board,Display comes when external monitor conected

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