Tom's Hardware > Forum > Graphic & Displays > TV/Video Cards > Black screen flicker when pc is connected to lcd with hdmi cable

Black screen flicker when pc is connected to lcd with hdmi cable

Forum Graphic & Displays : TV/Video Cards - Black screen flicker when pc is connected to lcd with hdmi cable

Tom's Hardware: Over 1.4 million members in 6 different countries available to answer all your high-tech questions. Sign up now! Its free!
Ask the community Add a reply
Word :    Username :           
 
mottiyos   07-16-2009 at 06:14:00 PM

i have a very annoying problem. i have recently bought a 42 inch philips lcd model pfl5604. i wanted to connect it to my pc so i can enjoy the full hd features of the tv. i connected my lenovo sl400 laptop to the tv using hdmi cable and after a while, the screen went black for a second and the picture got back to normal. it happened over and over again. i though that the problem is with the intel 4500 graphic card, that maybe it was to weak to handle the 1920/1080 reslution so i bought a graphic card, sapphire ati radeon hd 4550 512 mb with hdmi connection. i plugged the card to my pc and connected my tv to the graphic card but the problem was still there. i went back to the store and exchanged the graphic card to a Gigabyte ATI RADEON 4650 1 GB card and still the screen went black for a second over and over again. i took my computer to my brother to check with his 52 inch full hd philips tv and there was no problem, no black screens what so ever.
i have xbox 360 and hd cable box connected to the tv with no problem at all. i tried with different cables, all leading to the same result. the funny thing is, that i connected mt tv with a dvi to hdmi cable, and the problem was gone, no black screens. i spoke with the philips support in england, and they couldnt have an answer for me. i thought maybe the problem is with hdpc handshake, but when i checked on the 52 inch philips tv of my brother, there was nothing wrong.
anyone knows what's the problem?

Add a reply
Sponsored Links
Register or log in to remove.
festerovic   07-21-2009 at 12:36:22 AM
- 0 +

Did you try different resolutions, or only 1920x1080? Maybe the refresh rate is wrong, try messing with those resolution and refresh rate settings and see if it clears up.

Message quoted 1 times
Reply to festerovic
mottiyos   07-22-2009 at 10:57:34 AM
- 0 +

festerovic wrote :

Did you try different resolutions, or only 1920x1080? Maybe the refresh rate is wrong, try messing with those resolution and refresh rate settings and see if it clears up.



hi, thanks for your reply.
yes, i tried in different resoultions and refresh rates, i tried with different tv's and also on a same model of my tv in another store.
in different tv's there is no problem, only in the model that i have there is a problem.

Reply to mottiyos
festerovic   07-22-2009 at 06:44:09 PM
- 0 +

So DVI to HDMI works? I know it doesn't carry sound, but can you run the sound to a receiver or an input on the tv that goes with the HDMI port?

Reply to festerovic
mottiyos   07-23-2009 at 10:20:13 AM
- 0 +

yes. dvi to hdmi works, i'm afraid i dont have a receiver.
i am in a constant contact with the philips technical support, maybe there is a need to a new firmware update.
in your opinion, could this be a problem of hdcp?

Reply to mottiyos
festerovic   07-23-2009 at 09:26:55 PM
- 0 +

I'm no expert on HDCP, but when HDCP fails on tvs in my lab, they don't sync up at all - they are black the whole time, not picture-black-picture-black etc.

I know you really want to use HDMI, but consider VGA, the specs for your tv indicate it has a VGA port, with an associated audio port(red white). Some tvs have better quality when hooking up a computer this way, even though its analog.

Reply to festerovic
mottiyos   07-25-2009 at 12:53:39 AM
- 0 +

great news, problem is solved, all the naging to the philips tech support paid off, they released a new firmware update that solved the problem.

Message quoted 1 times
Reply to mottiyos
festerovic   07-26-2009 at 02:18:12 AM
- 0 +

That's great. I've always wondered: how do you flash the firmware on a TV?

Reply to festerovic
Anonymous   07-29-2009 at 07:52:19 PM
- 0 +

mottiyos wrote :

great news, problem is solved, all the naging to the philips tech support paid off, they released a new firmware update that solved the problem.





Dear Sir,

I've recently bought the 42PFL7404H 42" and i'm having the same issue,

Can you please tell me where can I download the firmware upgrade?


thank you,

regards,

Eliran.

Reply to Anonymous
notsej   08-03-2009 at 06:23:33 AM
- 0 +

hey dude , im experiencing the same problem with my sony 32" bravia ... the black screen shows up only when i play movies on full screen.... some1 any1 plzzz tell me how do i solve this problem !! :(

Reply to notsej
Anonymous   10-15-2009 at 12:55:38 AM
- 0 +

same problem here but with 20/09/2009 firmware in philips tv, did you get special firmware?

plz help

//Ricky

Reply to Anonymous
h_starboy   10-27-2009 at 09:23:04 AM
- 0 +

i have this problem with sony bravia klv-46v550a lcd tv !!!!
at the first time it works great but after that when i connect hdmi cable it has black screen on lcd !!!
any one can help me ???

Reply to h_starboy
Ask the community Add a reply
Tom's Hardware > Forum > Graphic & Displays > TV/Video Cards > Black screen flicker when pc is connected to lcd with hdmi cable
Go to:

There are 1073 identified and unidentified users. To see the list of identified users, Click here.

Forum map
Bestofmedia Forum ©
2000-2009 Bestofmedia Group
Page generated in 0.462 seconds
Sponsored links
  • Ask the community now
  • Publish
Ad
Related Topics
See all relatives topics
They won a badge
Join us in greeting them