IMac :: Changing 24" And Matrox DualHead2Go Resolution?
Aug 14, 2009
I bought a 24" iMac to replace my 18 month old Macbook Pro. It's nice and everything but it doesn't want to cooperate with my Matrox DualHead2Go and I'm wondering if anyone might know why. When I had it attached to the DVI port of the MBP I was able to use the MBP display and two external monitors, each set to 1680x1050. When I attach it to the iMac, it works but the best it will do is less...like each set to 1280x960 or so. Is the video card in the MBP really more capable or is it because the iMac has a much larger screen or is it something else I'm missing?
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Mar 21, 2010
I'm a little confused about the resolutions of the iMac 21.5 inch compared the iMac 27 inch.
In terms of watching HD content, which is better, as one is 1080p so it is perfectly formatted for this type of content but the other is higher (2560 by 1440 pixels), will this mean it is better because there are more pixels or worse because it is a different size? I'm a little confused about this. Also is it possible to change the resolution to 1920x1080 on the 27 inch? What will this do exactly? If I were to apply a 1920 x 1080 wallpaper for example to the 27 inch iMac will this look better/worse?
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Jul 26, 2009
We are having a hard time with our screen resolution on ouf 20" IMAC..Tried several today but could not get a good screen.
Those of you that have a 20" IMAC send me what you think is best.
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Aug 2, 2010
I like the 27 inch but saw that the menus and fonts are quite small. How can one true change the resolutions of this like in Vista or Windows 7.
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Apr 27, 2009
I had some problems with my screen. I tried restart PRAM, NVRAM, SMC ... nothing better.
Macbook screen movie
Install OS X:
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Apr 18, 2012
I persuaded a friend to go down the mac route. He now has a 2006 mac pro running Lion. When he boots up he sees the apple and the little counter thing, whatever it's called, and then the screen goes blank and his monitor tells him that there is no signal. I suspect it is as he is putting into VGA via an adaptor where previousy it was attached to apple cinema monitors and the res is set too high. I am trying to find a way to reset the screen resolution blind as he doesn't have anything else to put it through.
Would zapping the pram affect screen res, and if so what else into the bargain?
Info:
Mac Pro (Early 2008), Mac OS X (10.6.8)
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Jan 3, 2010
I recently purchased a 27" iMac running 10.6.2 and have installed CS4 only to find that the application toolbars/palettes are really small at the default 2560 x 1440 display resolution.
If I decrease the display to 1920 x 1200, my application toolbars/palettes are legible and a comfortable size to use, but then
the screen is not crisp and nice as the 2560 x 1440....and frankly not pleasant to create graphics in.
Is there any workarounds or solutions to this either through the Mac OS or individually through the Adobe Apps?
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Jan 19, 2010
Finally got around to testing out the differences in compression performance between my Matrox CompressHD PCI-e card and QMaster using 4 CPU cores.
Test was done using Compressor 3.51 on a MOV sequence captured at 1080i 60 (HDV) (Field upper) -- nothing was done to the sequence that is 1 min 2 secs long 206.4MB file size (not even de-interlaced).
Matrox CompressHD card software is 1.8.1 (firmware updated).
My goal was to get the 1920 x 1080 (actually 1440 x 1080) footage close to Apple TV 1280 x 720 progressive format (m4v).
The Results:
1. H.264 for Apple Devices 1280 x 720 (16:9 960 x 720) 5Mbps, progressive 44.1kHz Stereo (Medium quality 50) single pass without Qmaster:
CPU Usage - User 68-71% - System 5-7%
Time = 1 min 49 sec -- file size 39.9 MB
2. H.264 for Apple Devices 1280 x 720 (16:9 960 x 720) 5Mbps, progressive 44.1kHz Stereo (Medium quality 50) single pass with Qmaster 4 cores:
CPU Usage - User 87% - System 7%
Time = 2 min 01 sec -- file size 39.9 MB
3. H.264 (mov) Custom 1280 x 720 5Mpbs, progressive 29.97 fps - 44.1kHz Stereo High Quality Multi-pass using 4 cores Qmaster:
CPU Usage - User 88% - System 6%
Time = 4 min 02 sec -- file size 38.7 MB
4. Matrox MAX H.264 (mov) Custom 1280 x 720 5Mpbs, progressive 29.97 fps - 44.1kHz Stereo:
CPU Usage - User 28-30% - System 8%
Time = 1 min 06 sec -- file size 39.7 MB
What I find interesting is that the Apple TV quality was actually pretty good, the color was a little less vibrant that results from #3 and #4. What is really strange is that QMaster with 4 cores was actually slower than a without QMaster?? This leads me to believe the .m4v codec is able to detect and use more than 1 core regardless of QMaster -- in fact, adding QMaster just takes a little away from the efficiency of the .m4v codec.
It was nice to see the Matrox CompressHD only using 28-30%, allowing my system to be very responsive to doing other tasks.
Just a small sample of H.264 results, but with the type of work I do I get anywhere from about 2X to 4X faster compression times using the Matrox CompressHD.
This is probably old news for most of you, but it's new life for my aging 2007 MacPro
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Jan 20, 2009
Has anyone tried this with the Dual Head DVI? I'm assuming that it would go MiniDisplayPort to VGA, then Matrox, and out. Does it work, and is there any lag?
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Feb 9, 2009
I have been looking into solutions to have two external monitors hooked up to my mbpro and found these two. Both get the job done, but with a huge difference in price. I was wondering if anyone has experience using both? The matrox seems better, but I think the eVGA will do well enough for what I will be using it for (light photoshopping).
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Nov 12, 2009
ven an everyday user may consider such a card if the price is within budget which currently isn't. It isn't targeted at gamers who need every ounce of performance though.
It appears to be geared towards Apple since it debuted with onboard DisplayPorts. However, it should be noted on their specs page that the system requirements currently do not list any version of Mac OSes. Matrox do list Linux support though. Do note that they didn't leave out regular DVI users. Direct Link for more details on the specs.
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Mar 21, 2010
My old 24" iMac had an ATI radeon 4850 card, and playing some of my favorite game titles (fallout 3, and Dawn of War) worked fine - atleast in comparison to my old White iMac 24".
Now I'm going to purchase a 27" i5 iMac with the Radeon 4850 card. My question is; since it�s the same GPU and playing in native resolution will be a tough job. Will the quality of playing games in 1080p be much lower?
I just want to know if this will be a significante downgrade. Or if playing games in 1920x1080 will be a good quality choice.
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May 14, 2010
So my parents just bought a 21.5" iMac which has replaced their aging PC that came with a CRT(!!). The first thing they noticed was that the resolution is too high. Obviously, lowering this makes everything blurry but of course, no such problem with the CRT where they had nice big text and icons.
Surely there must be a way around this? Some software solution perhaps? They've zoomed in with Safari but that doesn't help the rest of the system and is a real pain to do it for every individual app.
Its understandably difficult for them to understand why something so many years advanced of what they had, can't do something so simple as changing resolutions. I even had a hard time exaplaining that this was an LCD issue, and nothing to do with a mac.
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Jun 6, 2010
I have and iMac on the way. Been using dual monitors for years with other operating systems. The second monitor I have is a 22" Planar PL2210MW that will do 1680x1050. The iMac is the 21.5" with the ATI Radeon HD 4670, 1TB drive, 3.06ghz Dual core.
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Nov 16, 2010
1440x900 resolution of the new MacBook Air 13.3" screen is simply too high, making everything way too small and straining on my eyes. Is there a replacement LED LCD panel with a lower resolution (1280x800 like the old MBA) that could be retrofitted?
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Apr 29, 2010
It is clear there are people who love their high-res antiglare display; the ability to have more pallets open in Photoshop, see more of what you are doing in Logic. However, there is a fair few of us who dislike the high-res because of decreased fonts, smaller graphical interface things.if you had the choice to go for a high-res or normal res antiglare 15", what would you go for?
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Dec 31, 2010
My iMac screen resolution only has a problem with the admin account. When I log in as a guest account - the resolution is as it should be at 1680 x 1050 - but when the admin account is logged in, that same resolution - 1680 x 1050 is slightly expanded by the screen size. I can click on the edges of the screen and bring back the menus to do what I need to do.
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Jan 24, 2009
So I tried to set up bootcamp on my 10.5.6 17" iMac. the windows installation failed because of a bad disc so I restored my computer using my OS X disc and time machine. Now my display in OS X is being forced to 1024x768 and I cannot change it to anything else. It looks terrible and there are some artifacts... Any idea what the heck happened?
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Mar 3, 2009
Have I missed something, or has the "new" iMac's 24" screen been reduced in resolution?
Update: Looks like their res info has been wrongly entered if one scrolls down on this page: [URL]
Going to the "Compare" page shows the higher res spec.
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Sep 10, 2009
Which will perform better on wow or any game, an imac 20inch or 24inch with the same spec of 2.66ghz 9400m 4gb memory?
They're both are almost identical but the native resolutions are different.I'm comparing a 20inch imac resolution 1680by1050 to a 24inch 1920by1200.
So I'm guessing the 9400m will do better on a 20inch imac right?
Since the 9400m is not all that powerful so I'm guessing it can't do well on the 1920by1200 when gaming ?
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Feb 2, 2010
I would really like to be able to select a 4:3 resolution like 1600x1200 in Windows XP and for it to work with pillarboxes on the side, like it does in OSX. Instead of stretching it out to fill the full screen. I have tried going into the advanced options for the video card and trying out each resolution at different refresh rates, but the result remains the same.
BTW...if it makes any difference I am using windows xp professional with service pack three and my video card is an Radeon HD4850.
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Mar 29, 2010
Question: How can I set the resolution of each display individually? Details below:I have the new iMac 21" and an LG W2252 display from my old PC. I'm a newly converted mac user. I connected it to the imac and it worked. But the resolution is horrible. I can change the resolution when the displays are mirrored. But then when I uncheck mirror the resolution for each display cannot be changed individually. The LG goes out of range and won't show anything until I bring the resolution down and mirror the imac. Is this problem with the LG or the mac?
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Aug 5, 2010
Apple sliced off a bunch of the vertical resolution compared to the 30" Apple Cinema Display.
ACD 30" = 2560x1600
iMac 27" = 2560x1440
Not really a huge deal. I think they did it to make it true 16:9.
I'm just posting this because this somehow slipped past my notice. I'm one of the people demoted from Mac Pro to iMac and now I am sort of wishing I could still use my 30". (I don't have space to use both.)
Not really a big deal. Just an FYI.
Yeah, I know it's my fault for not paying attention. I probably still would have went with the iMac 27" anyway.
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Aug 12, 2010
I got my first mac yesterday. iMac quad core i5.
I was wondering if there was any where to test the resolution of the screen e.g full HD videos to see the true quality of the screen?
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May 5, 2010
i am using a hackintosh for a week now. I am using it just to get used to Mac OS X because i am switching to a Macbook Pro in a couple months. I switched from PC to Mac officially now. OK, let's come to the main topic of this thread;-At first, my hackintosh couldn't get my gfx card, i couldn't find the driver(kext) so my resolution was very bad. Everything was huge and blurry. I couldn't even look at my 17" Samsung LCD screen. I made an entry to file which was something like this
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May 6, 2010
Who has actually played games on BOTH the 2010 high res and standard res macbook pros?Reading through that gaming benchmark thread isn't much of an indicator as most people don't post their resolution and if they have they have only played on one or the other.Im trying to get a better indicator on the performance difference with newer games. Are we talking 2-6 fps drop or 10-20 or more?
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Jun 10, 2010
For those who would like to try adapt to hi-res screen of the 15'' but the not sure if they can, if they can't adapt to the hi-res, it's possible to set the resolution to 1440x900 with no appearence differences from the standard res screens?So the appearence and quality of the hi-res screen set to 1440x900 is the same of the standard res screen?
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Aug 17, 2010
So i'm trying to figure out the best resolution for using my macbook pro in clamshell mode. I think ever since i installed snow leopard the new resolution choices i have are not longer pixel x pixel, but actual TV resolutions, such as 1080i, 720p, 420p. In the past I've used SwitchResX to do custom resolutions for my tv but that dosnt seem to work anymore.
I'm trying to find a resolution where text is easy to read. 1080i looks pretty but text is extremely small. 720p the text is larger and easy to see but is very fuzzy and not easy on the eyes. I guess this has something to do with the pixels on a tv being farther apart than that of a computer monitor. It's a 32" LCD TV. I'm using a DVI to HDMI cable (Non-Unibody Macbook Pro).
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Jan 5, 2011
I got screen sharing to work on my local network... so I can connect to my 27" iMac from 13" MBP.ution is just too much for my MBP to handle.Is there a way to automatically adjust the resolution on my iMac when I initiate screen share, and automatically turn it back to native resolution when I stop close screen share?
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Oct 3, 2006
what i intend to do is have my imac g5 and my peecee (pc ) on the same desk, but of course i cannot use the imac display, so i will use an extra display and use a KVM switch, my question is; Will the extra screen need to be the same resolution as the imac using ssd?
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