Monitor check signal cable problem

[Kennedy]

I switched my Philips 234EL from the laptop's external display to the desktop's display, both using the hdmi connection.

whenever I powered on the desktop, the monitor always stayed dark, except for the check signal cable box floating around. it stayed this way for 30-40 seconds, then the monitor finally displayed an image at the windows 7 welcome screen. when I powered off the desktop, the monitor went dark and displayed the floating around check signal cable box. it stayed this way until I switched off the electric socket.

I tried the dvi connection, and things are ok. the hdmi cable is tightly secured to the ports. it is brand new. I assume it is in good working condition. there are no images issues with the hdmi and dvi connections. things were ok previously with using the monitor hdmi connection for the laptop.

what is the problem here ? thanks.

 

[Kiwi8]

Might be the monitor going up lorry liao, but just to confirm, u will need to try another source lor.

 

[Kennedy]

Might be the monitor going up lorry liao, but just to confirm, u will need to try another source lor.

up lorry ? there are no images issue with hdmi and dvi. the dvi has no check signal problem. I changed the hdmi cable from the laptop. maybe need to change another hdmi.

 

[Kennedy]

I just remembered. I used a dvi to hdmi adapter for a previous monitor for this desktop. the screen flickered to black and ok again every 10 minutes or so. maybe the graphics card's hdmi port got problem ?

 

[Tanelgene]

I faced the same problem when using the newly bought samsung monitor.
Problem solved after I changed the source from auto-detect to manual and select hdmi..may be you can try it on your new monitor...

 

[Kennedy]

I faced the same problem when using the newly bought samsung monitor.
Problem solved after I changed the source from auto-detect to manual and select hdmi..may be you can try it on your new monitor...

how to do that ? the monitor's settings ?

 

[Steyr69]

how to do that ? the monitor's settings ?

think you have to fiddle with the OSD buttons on your monitor.

 

[tungsten2]

HDMI is not a good choice when it comes to computers.
I had a hard time connecting my desktop & laptop to the TV using HDMI.
Sometimes can connect, sometimes need to reboot server times.
No problem when using the standard VGA.

 

[jtjt00]

Samsung monitors have this scanning for input signal when connecting machine is boot or shutdown before it goes to on or standby mode. Set input to manual and select your connection accordingly to get rid of this scanning!