PC doesn't recognize Monitor with HDMI cable

Discussion in 'hardware' started by Atomas31, Jun 13, 2012.

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  1. Atomas31
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    Atomas31 Registered Member

    Hi,

    I have a motherboard Asus P8 Z77-V LX
    A video card : EVGA Geforce GTX 570 HD
    OS : Windows 7 64 bits
    A monitor : Asus VS-238H-P

    When I plug the monitor with the cable it come with to the PC everything is alright. The problem is when I unplug that cable and plug an HDMI cable from the monitor to the PC, the monitor screen stay black, nothing appears on it... What's wrong? Did I need to download HDMI driver for my card or change some settings in my bios?

    Thanks for your help,
  2. Atomas31
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    Atomas31 Registered Member

    It looks like it could be a driver for HDMI missing on my system... :doubt:
  3. treehouse786
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    treehouse786 Registered Member

    also check to see if the monitor is set to display the hdmi port and not the vga/dvi port
  4. Atomas31
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    Atomas31 Registered Member

    How do I check that?
  5. treehouse786
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    treehouse786 Registered Member

    change the input mode for the monitor to the HDMI port, all monitors are different in this aspect so you will need to check the user manual for your specific monitor.
  6. Atomas31
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    Atomas31 Registered Member

    Thanks! Changing the input from the menu of my monitor solve my issue when in Windows... Now, the only problem I still have is that when starting or rebooting my system my monitor doesn't start until the system get in Windows!?!? What did I have to change so the system and the monitor communicate between them as soon as the system start and not only when the system get into windows?!?!?

    Thanks,
  7. treehouse786
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    treehouse786 Registered Member

    no problem. not sure about this one, that behaviour might be hard wired into the monitor and you might not be able to change it. i would try installing/updating the HDMI driver for your graphics chip and see if that helps. you can also try disabling any power saving features the monitor has (see manual) and enabling the 'show startup logo' for the bios if not already enabled.

    edit- also try removing all other display cables from the back of the monitor (besides the HDMI one of course)
  8. Atomas31
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    Atomas31 Registered Member

    After a few test, it appears that was coming before the windows desktop appears on my other monitor!?!? If I change in resolution from extend to only use screen one for my desktop, that don't solve the issue but if I also unplug my Samsung syncmaster then everything is ok with my asus monitor connected with HDMI cable!?!?

    What configuration I have to change so at the start of the system the signal is send at the monitor connected with the HDMI cable and not the other one (with a VGA connection)?

    Thanks,
  9. Atomas31
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    Atomas31 Registered Member

    It seems like the system first try the DVI connexion on my graphic cards and then the HDMI connexion since my Samsung is connected to a dvi port, it is the one the system use and when windows start my Asus (on HDMI) takes over o_O Is there a way to tell the system to first check the HDMI port and then the DVI ports? o_O
  10. treehouse786
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    treehouse786 Registered Member

    try swapping the dvi cable with a vga cable (if your samsung monitor and gfx card has a vga port).

    apart from the above suggestion i cant see a way around it apart from flashing the gfx card with a custom bios which i dont recommend doing.
  11. treehouse786
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    treehouse786 Registered Member

    you seem to be using both DVI and VGA when describing the samsung monitor. please clarify which connection type you are using on the non HDMI monitor (samsung)
  12. Atomas31
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    Atomas31 Registered Member

    The samsung is a VGA cable connected to a DVI connection (with an adaptator that came with my video card)...
  13. Atomas31
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    Atomas31 Registered Member

    What I came to understand is :

    1. With 1 monitor connected HDMI = No problem!
    2. With 2 monitors both connected DVI = No problem!
    3. With 2 monitors, one connected HDMI (primary) and one connected DVI (secondary) = problem at startup where the system take the secondary monitor (DVI) has the primary monitor and when windows start then the primary monitor (HDMI) take over has being the primary monitor...
  14. treehouse786
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    treehouse786 Registered Member

    in which case there maybe a way around this but you would have to sacrifice the sound carrying capabilities of the HDMI cable and lower quality display on the asus monitor. PM me if you are interested as we might need to do instant messaging to get anywhere soon with this.
  15. Atomas31
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    Atomas31 Registered Member

    Thank you very much for all your help Treehouse786! In the end, I decided to forget the HDMI and connect back my asus on a DVI port... It is less problems and most of all, it is working!
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