New To Mac-Forums?

Welcome to our community! Join the discussion today by registering your FREE account. If you have any problems with the registration process, please contact us!

Get your questions answered by community gurus Advice and insight from world-class Apple enthusiasts Exclusive access to members-only contests, giveaways and deals

Join today!

 
Start a Discussion
 

Mac-Forums Brief

Subscribe to Mac-Forums Brief to receive special offers from Mac-Forums partners and sponsors

Join the conversation RSS
Apple Notebooks Apple's notebook computers including MacBook Pro, MacBook, MacBook Air, PowerBook, and iBook.

Help with TV Connection!


Post Reply New Thread Subscribe

 
Thread Tools
Tripped

 
Member Since: Mar 25, 2010
Posts: 9
Tripped is on a distinguished road

Tripped is offline
Hey all.

My roommate recently got an HDTV tv for his birthday, so I thought it would be a fantastic idea to be able to plug my laptop in and use the TV as an external monitor.

I have a black macbook, mini-DVI to VGA, VGA cable, running into a RCA L42FHD37R tv. The TV's resolution is 1920 by 1080, and when I bring up the monitor preferences on my computer, it shows the TV and that it's outputting at that resolution at 60hz (which I believe is the refresh rate for the TV). However, all I get is a blue screen on the TV that says "not supported." If I lower the output resolution on my macbook, the TV will accept the signal, but of course it doesn't fit the screen properly and I'd obviously like it to look as best as it can.

I've searched diligently around the internet and haven't been able to find any answer to this question. Perhaps someone here has a suggestion? The only other thing I could think of doing is going with an HDMI connection, as this TV has overscan correction. However if I can avoid purchasing another adapter and cable, I'd be happy to stick with VGA.

Thanks in advance for your help!
Sean
QUOTE Thanks
Tripped

 
Member Since: Mar 25, 2010
Posts: 9
Tripped is on a distinguished road

Tripped is offline
Oh yes, if this helps, here's the full specifications for the tv.

RCA L42FHD37R specs
QUOTE Thanks
chas_m

 
chas_m's Avatar
 
Member Since: Jan 22, 2010
Location: Victoria, BC
Posts: 16,753
chas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond reputechas_m has a reputation beyond repute
Mac Specs: 2012 MBP, Black speakers, Black Benq second monitor, black(ish) iPhone 5s, Black 2012 iPad, etc.

chas_m is offline
My guess would be a limitation of the VGA cable. Any way you can hook up mini-DVI to DVI, then DVI-to-DVI? I think the problem here is the analog signal won't sync that high.
QUOTE Thanks
Tripped

 
Member Since: Mar 25, 2010
Posts: 9
Tripped is on a distinguished road

Tripped is offline
Unfortunately my TV doesn't have a DVI input (that would make so much sense in this day and age...) so I guess my only option would be to upgrade to an HDMI connection. However I never knew that VGA wouldn't be able to handle this resolution, really wish it would. Any chance some sort of software upgrade could remedy this problem and enable me to use VGA?
QUOTE Thanks
bobtomay

 
bobtomay's Avatar
 
Member Since: Dec 22, 2006
Location: Texas, where else?
Posts: 25,021
bobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond repute
Mac Specs: 15" MBP 2.33 C2D 256 4GB, MBA 13" i7 1.8, MB 2.0 2GB, Nano 4th, 3GS, iPad 1

bobtomay is offline
No, there is no software that will fix it, as the problem is not with your computer or the cable, but with the TV.

The VGA connection on the vast majority of HDTVs will not accept a 1920 x 1080 input. For that matter, most of them will not even accept a 16:9 input through VGA. Yours is one of them. Most of the better manufacturers will list the resolutions the VGA port will accept in the owners manual, not yours. It does provide the technical info however, saying the PC input accepts VGA, SVGA and XGA. This now has to be interpreted.

VGA = 640 x 480
SVGA = 800 x 600
XGA = 1024 x 768

These are the resolutions you'll be able to use. You'll notice they are all 4:3 aspect ratios also. The TV doesn't have the ability to interpret any other resolutions through the VGA port. This is very typical. Only in the last 1-2 years have a "few" of the HDTV manufacturers begun using better quality VGA ports to allow a VGA connection matching the resolution of the HDTV.

You'll need to upgrade to HDMI if you want the best you can get on the TV. You'll need a mini-DVI to HDMI adapter. You can grab one from Apple or monoprice or others and a HDMI cable.

If you want the sound from your TV also, you must use the HDMI/DVI 1 port. That is the only one that will allow for separate audio with HDMI.
You'll need a stereo mini-plug (3.5mm) to RCA cable for connecting the audio.

I do not recommend a mini-DVI to DVI and then a DVI to HDMI cable. The mini-DVI to HDMI adapter is much smaller and will fit better in your trash drawer of cables at the end of it's life than the cable will.

I cannot be held responsible for the things that come out of my mouth.
In the Windows world, most everything folks don't understand is called a virus.
QUOTE Thanks
Tripped

 
Member Since: Mar 25, 2010
Posts: 9
Tripped is on a distinguished road

Tripped is offline
Well thanks, that definitely clears it up for me! Seeing as how I'm a broke-*** individual, I was hoping there was some way I could just go with VGA, but I now see why that's not possible.

I would definitely just buy a Mini-DVI to HDMI cable. Mini-DVI seems to be on the way out and in the future when I buy a new Mac and this adapter becomes obsolete, it would make sense to still have a good quality HDMI cable.

Thanks again for your help!
QUOTE Thanks
bobtomay

 
bobtomay's Avatar
 
Member Since: Dec 22, 2006
Location: Texas, where else?
Posts: 25,021
bobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond reputebobtomay has a reputation beyond repute
Mac Specs: 15" MBP 2.33 C2D 256 4GB, MBA 13" i7 1.8, MB 2.0 2GB, Nano 4th, 3GS, iPad 1

bobtomay is offline
You can use your VGA, you'll just be limited to those resolutions until you can get that new adapter/cable. It'll still be alright, and a bigger screen for movies than your notebook.

I cannot be held responsible for the things that come out of my mouth.
In the Windows world, most everything folks don't understand is called a virus.
QUOTE Thanks

Post Reply New Thread Subscribe


« Macbook Pro battery life | Macbook Pro Hard Drive Gone? »
Thread Tools

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Forum Jump

Similar Threads
Thread
Thread Starter
Forum
Replies
Last Post
My MAC loses internet connection ralphmorgan Switcher Hangout 5 02-26-2010 09:42 AM
MacBook Pro Looses Wireless Connection mcrosby57 Internet, Networking, and Wireless 0 10-29-2009 01:23 AM
Airport connection drops out more often for one user than another on 10.4.11 ajoffe Internet, Networking, and Wireless 0 05-10-2008 06:43 PM
Moody network connection, help joshhannah Internet, Networking, and Wireless 0 03-12-2008 07:18 PM
internet connection problem brendan67 Internet, Networking, and Wireless 0 03-01-2005 02:14 PM

All times are GMT -4. The time now is 04:18 PM.

Powered by vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
X

Welcome to Mac-Forums.com

Create your username to jump into the discussion!

New members like you have made this community the ultimate source for your Mac since 2003!


(4 digit year)

Already a member?