08-03-2012 03:15 PM
i am using hp pavilion dv4 1220us and when i use the HDMI Cable with my sony tv the tv give me message...
unsupported signal chek your output device.
then i had tray to change the resulation and do many thinges and i cant got it again i had change the place of the cable in the 2 ports in tv but stell the same message.i need help i wish somone can help me realy many thanks..
08-04-2012 12:23 PM - last edited on 02-21-2017 10:02 PM by OscarFuentes
Please write your notebook product number (p/n), which system are you using and country of purchase.
How to Locate the Notebook product number (p/n)
08-05-2012 07:23 AM - last edited on 02-21-2017 10:04 PM by OscarFuentes
Update the Bios.
How to update the Bios?
Download the latest Bios update from here.
Plug the AC adapter to the netbook.
Disconnect from the Internet. Close all currently running programs. Disable anti-virus and firewall.
Double-click the Bios update exe file. It may take some time, so it is important to remain patient, do not interrupt the process. Allow the notebook to restart after applying the updated BIOS.
While this update is running:
- do not switch off your laptop,
- do not unplug the AC adapter,
- do not try to run any software or do anything on it.
The Bios update process is always risky. You will do this at your own risk.
Update the graphics driver.
Uninstall the ATI/AMD graphic driver first. Check the link below:
Download and install the latest AMD driver for graphics from here if you use 32 bit system.
Download and install the latest AMD driver for graphics from here if you use 64 bit system.
Restart the system and check the result.
Check the useful link:
08-05-2012 10:00 AM
i had did all the steps you asked me for and then i had tray to connect the pc with the tv by the same cable but i couldnot got anything nether voice or picture??? could it be cable problem or what??(by the way i had format my pc to solve these problem but stell the same ... many thanks for you r help will be waiting for reply.
08-05-2012 01:27 PM - last edited on 02-21-2017 10:05 PM by OscarFuentes
Check the below links:
08-05-2012 01:49 PM
yes i did everything as it shows in the link but stell the same message and i trayid many times with that....
the driver that installed now on my pc arE AMD for sound and also for the graphic also as i did like you asked me to do...and whenever it show on the sound that there should be voice on my tv now but there is no any voices even from the tv or picture..i am going crazy with that....should i change the cable??or such problem is not related to the cable what do you advice for me plz?
08-05-2012 01:54 PM
Yes, it's a good idea to try other cable if you have that possibility.
08-05-2012 01:56 PM
ı dont know maybe ı wıll buy new one ...the thing that make me crazy that i can see that my pc recogonize the tv and see it even in the AMD it show the tv as detected by name sony tv and i tray to change everything but cant make it work.//// any way many thanks for your help and tray with me ....
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