I set up my refurb imac 24" 2.8ghz and discovered several horizontal grey and white bands on the screen during start up. It's not as noticeable on a photo background but is there when using a web browser with a white background.
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I'm experiencing external video banding/noise on a 2006 iMac (2GHz, Core Duo, 20" screen) when using Apple's video adapter (RGB to RCA/S-Video); I use it to connect my iMac's video output to my TV.
The noise is basically diagonal lines running top to bottom/left to right across the TV screen. They are faint and are more like ripples in the screen. It almost seems as though it's not grounded correctly.
I noticed this issue when I first got the computer; I switched the adapter back and forth between my iBook and the iMac and the noise was only evident on the iMac's output. I called Apple and they refused to deal with it, suggesting it was due to the video cable length (20 feet) even though the iBook was fine.
as it happens just came back from a small apple store nearby with the intention of buying the unfortunately I found a display related blocker... : it turned out that the exposed 27" had banding problems that were clearly visible when you opened (for example) a full screen terminal window with 100% opaque black background; if you did, you could see as at least that 27 imac showed very good black levels for over 3/4 from left to right of the display, but as you looked towards right the remaining 1/4 of the screen presented a mild gradient from black to grey that was particularly noticeable in the right edge and bottom-right corner of the display.
View 13 Replies View RelatedI posted this in another thread but thought so many are having issues it deserved a thread of its own.
This worked for me.
I removed all the ATI drivers.
I am using a 3D scene using two lights.
The backgrounds is a soft green/yellow tone.
What ever I do with the lights, they create banding in the animation and the result is that it lookes like bad compression.
Information:
G5
Mac OS X (10.5.5)
2x3GHz Quad-Core Intel 10GB memory
My macbook pro has an issue with banding periodically across the bottom portion of the screen. Usually a little twist of the screen or tap on the back fixes the problem but lately it's being very stubborn. I'm wondering if this issue is an LCD issue or a cable issue. I'm hoping it's a cable issue as the problem has been very periodic. I've attached a couple pictures of the problem.
View 2 Replies View RelatedJust reading the other post related to 27" input I have a question about connecting a G4 MDD that has a DVI output to a quad i5 or quad i7 iMac.
I need to connect the G4 since my kids have some games that still run in Classic mode and only have enough room for one monitor. Is there a cable that will allow me to use the iMac as a monitor for the G4?
I have a early 2010 27" iMac with a mac mini port. Is there any way I can use it to watch cable tv, inputting it from a cable box. I have heard both yes and no.
I was told at the apple store that the Mac Mini port only exports and that the only way to watch TV on the iMac is through the Internet. Does anyone know for sure?
Do you think the new video input in the 27" iMac would be suitable for playing on the Xbox with or will there be any lag?
View 24 Replies View RelatedI can feed sounds into my iMac with line input but no sound comes out vis internal speakers. I can record the input sound using Amadeus and play through gives me sound output. When not using Amadeus although input is set to line in and output to internal speakers no sound comes out. There appears to be some internal disconnection between input and output.
Info:
iMac, OS X Mavericks (10.9), printer, scanner, ATVs, external hard drives, USB DAC
I know about the 27 inch and how it can is can use its mini display port as a video input. But I was wondering if you could use the 21.5 inch to do the same. From what I am reading its seems though that it can't, is there a hack of some sort that could do this. This would be a great 1080p screen to use instead of buying a brand new TV.
View 1 Replies View RelatedOn the 2009 iMacs you were limited to a 720p resolution when you for example plugged your Ps3 to the iMac, even though the connector could show 1080p. Does anyone know if this is still the case on the new iMacs? And this is only possible to do on the 27" models, since they have video input.
View 5 Replies View RelatedI just got this new iMac that I got used and the sound on the computer does not seem to be working, I have tried doing what the computer tells me and going into System Preferences and selecting the sound option, but the sound seems to have been permanently disabled and shows that there are no output or input devices available, when clearly the monitor has speakers. whats more, is that the volume icon does not show up in the menu bar even when I select that I want it in the menu bar.
Info:
iMac
My mic isn't picking up sound on my iMac, but it works on any other computer i use it on.I have multiple USB Microphones and they all have the same problem. They seemed to be working a couple days ago.
Info:
iMac, OS X Mavericks (10.9.4)
I am a current PC user and I am planing my purchase for my i-7 27" iMac but I have a question regarding the Mini Displayport. I frequently repair PC's and use my display as a second input to connect to the PC that I need to repair. I have been reading the spec on the iMac and noticed that the Mini Displayport can be used as an input. Can someone tell me which adapter that I need to purchase to make this happen?
View 5 Replies View RelatedInternal (built-in) microphone is not listed in sound input devices, though it present in equipment list in System Report / Hardware / Audio...
Hence, it not works.
Info:
iMac, OS X Mavericks (10.9.4)
Have iMac 27" 5K. Mouse cursor changes shape irregularly without my input?? Can't find related preference settings.
Info:
iMac with Retina 5K display, OS X Yosemite (10.10.1)
I've bought my 1st Macbook and its been about 3 weeks, its great and love it but I'm starting to see weird banding or color issues when viewing photos. Mainly when viewing black and white photos and even color. This seemed to have happened after I was trying to calibrate my screen using the Pantone Huey. Is this a limitation of the screen or do I have a defect?
View 3 Replies View RelatedAfter installing the latest version of Photoshop 2014 on my late 2013 Mac Pro my images are showing horizontal banding when editing a layer mask. Adobe said this is the fault of the GPU (Mine: two AMD FirePro D500) and that I should post it here, for Apple to read.
View 1 Replies View RelatedBelkin AV360 1080P HDMI-MDP Input Adapter Review.
View 24 Replies View RelatedThird party testing has confirmed that Apple's new 27" iMac can only be used as an external display for devices designed to provide DisplayPort video. It will not work with any equipment that only supports VGA, DVI, or HDMI output.
In a follow-up to its teardown of the 27" iMac last week, iFixit said it revisited the new hardware to see if it could display high-definition video from a non-DisplayPort external source.
The results of the testing indicate that Apple's stated specifications for the iMac were correct; while video input worked as expected with a 13" MacBook Pro equipped with Mini DisplayPort, all attempts to use a physical adapter dongle to supply alternative video signals to the new 27" iMac failed.
"The iMac will not act as a second (or primary) display using the Mini DisplayPort to DVI adapter that Apple sells," the group's website stated. "We tried it on a PS3 Slim, as well as a MacBook and MacBook Pro. It looks like we'll have to wait for a special adapter from Apple or a third party."
A one way street
According to Apple's stated specifications however, the 27" iMac's video input feature will only ever work with DisplayPort devices, and no physical adapter will change that fact.
Apple has frequently used converter dongles on its notebooks in order to support multiple types of video output signaling via the same port. For example, previous notebook models provided Mini-DVI ports proprietary to Apple which could deliver both VGA and DVI outputs using the appropriate connector. These ports provided multiple signaling types over the same physical pins.
Apple's modern machines similarly all supply a Mini DisplayPort connector (originally designed by Apple but now part of the official DisplayPort specification); using the right connector, users can extract and output any video signal type supported by the computer, including VGA, DVI, HDMI, and DisplayPort.
VGA is analog video; DVI and HDMI are both digital, electrically compatible, serial video data formats that only differ in their physical connectors; DisplayPort is an entirely new format that uses a packet signaling format.
The iMac's Mini DisplayPort supports output of all three, but can only input and display DisplayPort video. Unlike moving from DVI to HDMI, converting a DVI signal to DisplayPort requires more than a cheap physical dongle; it would necessitate a relatively expensive converter box to process the signal into a completely new format and possibly also a scaler to match the output device to the 27" iMac's enormous resolution of 2560x1440.
This prevents the new iMac from serving as an HDTV-style output source for older DVI-based computers or HDMI-output devices such as the Playstation 3, Xbox 360, Apple TV, or standard DVD and Blu-Ray players. Future devices that support the DisplayPort standard will work, of course.
Why no DVI or HDMI input is supported
The 27" iMac's inability to input DVI video is rooted in the fact that the DisplayPort specification is uniquely designed to work as both an internal (video card to built-in display) and external (PC to monitor) video signaling system.
Non-DisplayPort systems typically use LVDS for internal video cabling and DVI for external video connectors. No Apple computers supply any sort of internal DVI input to support driving their built-in LCD via the DVI port using an external computer.
Apple's existing MacBooks, Mac mini, Mac Pro, and the smaller new 21.5" iMac model do not support video input at all. The company's 24" LED Cinema Display is the only other device that currently supports (and only supports) DisplayPort input. The 30" Cinema Display HD only supports DVI input, but not DisplayPort.
[ View this article at AppleInsider.com ]
Just partitioned 150gb for bootcamp on my 1TB HDD. I installed XP Media Center OEM without a problem at all. I then put the snow leopard disk in and it autoexec'd and then looked like it was installing stuff. Then it went to screensaver and would not respond to keyboard or mouse input.
View 3 Replies View RelatedWhenever I start/restart my MP, I am unable to interact with the unit for 2-3 minutes. The mouse pointer will move, but I cannot click on items, nor will the dock icons magnify until 2-3 minutes after. I have done a clean install now and have taken out the 4890. Everything is back to stock but it continues to occur.
View 3 Replies View RelatedIs there a DVR with HDMI input or component cable input, but only a one-time fee and can copy encrypted channels (HD or SD) that doesn't use a CableCard.
Elgato products don't do it. TiVo does it but I don't like the monthly fee and they want me to get rid of my Verizon FIOS Box.
What would be even better is a DVR that has a HDMI in and out that connects from my Verizon FiOS HD Cable Box to the DVR then from the DVR into the HDTV.
I have never noticed this before but on every single prompt that I have there this this US Flag in the upper right hand corner. How do I remove this?
View 4 Replies View RelatedMy question is not really pertaining to MP or MBP, but I use both of these computers. I have been on the hunt for the best document holders, I do a lot of looking at the papers and typing it on the computer. After a little bit of research I came across this document holder and it looks cool. Of course, these are a wee bit on the expensive side, but ebay searches came up with these search results: [URL]. Has anybody used these document holders? Even though it is a minor accessory I would love to have your input on this document holder.
View 2 Replies View RelatedI am trying to connect my mbp to a vga input tv.
i bought a mini dvi to dvi adapter off ebay. when i plug in my dvi desktop monitor it works fine.
when i plug in my dvi to vga adapter, it does not work on either my vga desktop monitor or my tv. is there setting or something i need to change to make this work?
With my PPC G5 the microphones audio is either too low or none existant. I have gone into system preferences and set the input audio to the max with no change. Does the G5 have a special audio input impedance or is there another setting I should investigate? The output analog audio is working 100%.
View 1 Replies View RelatedThe analog audio input on my Mac Pro has stopped working.Audio output still OK; USB audio input works fine but nothing from analog audio input.I know it's getting a signal as I can send the mixer output to a Zoom H4n and it records fine, but I need it to go directly into the computer for tutorial voiceovers. I've tried recording in Quicktime Player, Soundtrack Pro, Camtasia and Screenflow.I get no volume indication in the System Preferences>Sound panel.I opened Apple Midi Setup>analog input and I can adjust volume on the two channels but "Master" is stuck at zero.
Info:
Mac Pro, Mac OS X (10.7.2), MacPro2,1 Quad-Core Intel Xeon
How do I input a music DVD to itunes?
Info:
iMac, Mac OS X (10.5.2), leopard
