Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > Apple Hardware > PowerPC Macs

Thread Tools Search this Thread Display Modes
Old Aug 20, 2012, 04:06 PM   #1
macrumors member
Join Date: Jul 2006
Garbled video on Powerbook? please help

Hi, this morning i turned on my Powerbook g4 1.25mhz os x 10.5 and it worked fine for about 5 minutes then the screen became garbled. The screen itself seems fine but the video is garbled (you can kinda make out whats on the screen if you look hard enough). I rebooted, tried different ram (ok i was grasping at straws...) is it likely a motherboard issue? I am thinking the video hardware on the motherboard is failing? please any advice on how i can troubleshoot or fix this would be most appreciated.
kevin242 is offline   0 Reply With Quote
Old Aug 20, 2012, 04:16 PM   #2
macrumors 68000
Hrududu's Avatar
Join Date: Jul 2008
Location: Wichita KS
Your guess about the video controller on the board failing sounds right on par with what I would guess. You can also try hooking it up to an external monitor to see how the video looks there. If its okay on an external, its probably the LVDS cable that runs from the internal LCD to the logicboad. Could be starting to tear or has simply come loose.
Quad 2.5 G5, MBP 2.16, Dual 2.0 G5, Dual 1.42 MDD, 17 PowerBook 1.67, 12" PowerBook 1.5, TiBooks 867 & 667, iMac G3 500, Cubes 500 & 450, B&W G3 450 & 350, iBook 300's & 366, Beige G3 350, PDQ G3 233
Hrududu is offline   0 Reply With Quote
Old Aug 20, 2012, 04:24 PM   #3
Join Date: Aug 2012
Sometimes the video cable connectiong the screen to the logicboard can get loose this has happened to me a few times if you are able, try wiggling the connector while the laptop is powered on. If this is the issue you will see simular effects on the screen as you do this.
NuMackUsr is offline   0 Reply With Quote

MacRumors Forums > Apple Hardware > PowerPC Macs

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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

Forum Jump

All times are GMT -5. The time now is 01:42 AM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013,, LLC