Windows 7 cannot adjust HDMI output brightness display

[masri99]

hi guys, i'm having trouble adjusting my screen brightness on my TV when it's connected via a HDMI cable to my laptop. If i try to increase the brightness through my laptop (VAIO VGN-SR) it does so only on my laptop display, while my TV remains the same. Instead if i try to do the opposite, adjusting the brightness through my TV (Panasonic TX-L32D25E) it doesn't change anything whatsoever. The thing is everytime i watch a movie through my laptop the screen brightness on my TV is too dark and i can't adjust it, however if i watch the other normal channels i can adjust the screen brightness without any problems. Does anybody know how i can increase the brightness on my TV when connected to a laptop? Is it an issue regarding the computer rather than the output device?
thank you

 

[brian56]

see page 91 (and 100) >>> Link Removed - Invalid URL

 

[masri99]

it mentions to use the VAIO control center to adjust screen resolution to the output display, could that be the solution?

 

[brian56]

yes see if the instructions are right im sure the hdmi will work i was just seeing what other things we could try also check what the tv says about connecting to the hdmi ports

 

[masri99]

unfortunately the VAIO control center doesn't mention anything about the screen brightness for an output display

 

[masri99]

i just noticed that the screen brightness on my TV does change but very little there is almost no difference between the maximum brightness and the minimum brightness, this happens only when my laptop is connected. Without it, when i watch normal channels, the brightness does significantly vary

 

[brian56]

do other controls work like hue saturation contrast etc?

 

[brian56]

see page 58 and 92 and 97 >>> Link Removed - Invalid URL

 

[masri99]

sorry but the link doesn't work

 

[brian56]

Link Removed - Invalid URL


you will need a browser with a pdf reader i cant upload the tv manual because its over the 5MB limit

 

[brian56]

i have uploaded the file here for you >>> Link Removed see page 58 and 92 and 97 >>>

 

[masri99]

Thank you man!

 

[brian56]

hi have you got it working ok now?

 

[overflow]

Hi, may be you have a configuration issue in your graphics card as described in this post: Brightness issue on monitor using HDMI - GENIDEE

Let me know if it helps

 

[Neemobeer]

This post is seven years old...

 

[tcvuongtron]

Và toàn bộ chúng tôi có thể làm được điều đó không? tôi có thể kết nối TV?






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