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.

Strange screen glitch in Macbook Pro 17"


Post Reply New Thread Subscribe

 
Thread Tools
jstancil

 
Member Since: Oct 12, 2009
Posts: 5
jstancil is on a distinguished road

jstancil is offline
Hoping someone on here can help me out a little with a problem I'm having with my Macbook Pro. It's a 17" MBP model A1151. It's been used...a lot. Over the last few months I've started to notice some weird screen glitches. Bars of color across the screen, flickering. It seems to be manipulated by moving the screen back and forth though, it would sometimes go away with a little fiddling. Now it doesn't really want to go away with any amount of fiddling. Here is a picture I took, you can just see the question mark folder (no hard drive in right now) above the line were it's jacked up.



I was thinking that it's probably the display cable. However, I have it all apart right now and when I wiggle the display cable directly nothing is happening. Where would you all start first, throw a new display cable in there and see what happens, or do you think I need a new LCD all together...or is it possibly the graphics card??

Thanks in advance for any help!
QUOTE Thanks
chscag

 
chscag's Avatar
 
Member Since: Jan 23, 2008
Location: Fort Worth, Texas
Posts: 41,423
chscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond repute
Mac Specs: 27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, 3 iPods, Yosemite

chscag is offline
My guess is it's the graphic chipset which is defective. Since the hard drive is removed you can't do much testing. Put the hard drive back in and take a screen shot of the desktop. If the screenshot looks the same as the display, that means the graphics chipset is probably defective.

Your MacBook Pro was the first model introduced back in April 2006 so it's had a pretty good run. If the graphic chipset is defective, that means a new logic board. If it does need a new logic board it's not worth repairing as the board would cost more than the machine is worth.
QUOTE Thanks
jstancil

 
Member Since: Oct 12, 2009
Posts: 5
jstancil is on a distinguished road

jstancil is offline
Thanks for the tip, I'll try that out when I get back to the office.
QUOTE Thanks
jstancil

 
Member Since: Oct 12, 2009
Posts: 5
jstancil is on a distinguished road

jstancil is offline
Alright, took a screen grab of the lower half of the screen and it came out clean with out the glitch. I also connected an external screen through the DVI connections on the macbook, it too was perfect. So from that I think I can safely say it isn't the graphics chipset and I can move on to the display cable right?
QUOTE Thanks
chscag

 
chscag's Avatar
 
Member Since: Jan 23, 2008
Location: Fort Worth, Texas
Posts: 41,423
chscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond reputechscag has a reputation beyond repute
Mac Specs: 27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, 3 iPods, Yosemite

chscag is offline
Right. Either that or the LCD itself. Let's keep our fingers crossed for the display cable. Thanks for posting back. Let us know how it goes.
QUOTE Thanks
jstancil

 
Member Since: Oct 12, 2009
Posts: 5
jstancil is on a distinguished road

jstancil is offline
Well, got a new display cable and still seeing the glitch. Guess it's the LCD itself...thanks for your help.
QUOTE Thanks
jstancil

 
Member Since: Oct 12, 2009
Posts: 5
jstancil is on a distinguished road

jstancil is offline
Just wanted to give you all a quick update on this issue I had. I purchased a replacement LCD on ebay for right around a hundred bucks and it worked perfect. So if you have a similar problem, try taking a screen grab (shift+command+4) and if the picture comes out clean without the glitch you are seeing, it's probably not the graphics card and can be fixed reasonably. Also, plugging in an external display will help you rule out the graphics card, if the external looks perfect without the glitch that shows up on the laptop display, probably the ribbon cable or LCD itself. Thanks again for your help chscag!
QUOTE Thanks

Post Reply New Thread Subscribe


« Are 9cc3 LCD models for the Macbook Pro 2011 13" still being made? | How do you check the LCD model of a Macbook Pro without taking it out of the box? »
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
Can the macbook pro run without a screen? alivak Apple Notebooks 12 01-17-2013 04:34 PM
New Macbook Pro, screen turning black spontaneously Justin Apple Notebooks 2 11-30-2010 03:43 AM
Macbook Pro crazy screen and stuck on startup screen ElmntJ Apple Notebooks 2 10-26-2010 08:43 PM
MacBook impressions - trip to store kaidomac Schweb's Lounge 24 10-14-2007 02:45 PM

All times are GMT -4. The time now is 10:45 AM.

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?