Apple

How to fix colors on Macbook pro Display

Caliberate Macbook Screen

Caliberate Macbook Screen

I had this problem recently. My macbook pro laptop display all of sudden has bad display. It was basically not showing full colors. The colors were as if it were 16 bit or something, although I did not change the setting myself.

What cause the display malfunction

I found that when my macbook pro was running on battery and the battery was about to run down (only %5 left). If you switch of you macbook pro, the chances it when you start it using AC Adaptor, its display would be messed up. This happened to my early 2011 macbook pro (13″).

How to fix it

First run calibration of the screen by going to System Preferences -> Display -> Color (TAB). Here chose Calibrate. Just follow the steps by clicking Next on each screen.

If this does not fix the problem, you may have to reset NVPR RAM. You can do that by holding Alt+Option+P+R option while you are restarting your mac. This will be a beep and the computer will restart again.

Caution

If you reset NVRAM and you have Parallels Installed as well, it will mess up your dual boot system. You won’t be able to login into the System. To temporarily fix that, you have to hold option key when the laptop is restarting. This will show up the Windows OS option you have on the system. Simply select Mac OS and you should be able to boot.

Macbook Air 2013 vs 2012

13″ Macbook Air 2013 was released today on July 10, 2013. Lets compare it against 2012 Macbook Air.

Summary

Everything is the same including display, resolution, shape, weight and technology except

Processor power reduced from 1.8GHz to 1.3 GHz
5 hours of extra battery life (that is 12 hour battery life)
New faster Wifi
Faster Graphics Card

BottomLine: The 2012 macbook air owners will be really happy!

Here is the complete summary.

2012 Macbook Air 2013 Macbook Air
Price 1099 1099
Display 13.3-inch (diagonal) high-resolution LED-backlit glossy widescreen display with support for millions of colors

Supported resolutions:
1440 x 900 (native), 1280 x 800, 1152 x 720, and 1024 x 640 at 16:10 ratio and 1024 x 768 and 800 x 600 at 4:3 ratio.

13.3-inch (diagonal) LED-backlit glossy widescreen display with support for millions of colors

Supported resolutions:
1440 by 900 (native), 1280 by 800, 1152 by 720, and 1024 by 640 pixels at 16:10 aspect ratio; and 1024 by 768 and 800 by 600 pixels at 4:3 aspect ratio

Storage 128GB flash storage 128GB flash storage
Processor 1.8GHz dual-core Intel Core i5 (Turbo Boost up to 2.8GHz) with 3MB shared L3 cache

US$1399 model configurable to dual-core 2.0GHz Intel Core i7 (Turbo Boost up to 3.2GHz) with 4MB shared L3 cache.

1.3GHz dual-core Intel Core i5 (Turbo Boost up to 2.6GHz) with 3MB shared L3 cache

Configurable to 1.7GHz dual-core Intel Core i7 (Turbo Boost up to 3.3GHz) with 4MB shared L3 cache.

Memory 4GB of 1600MHz DDR3L onboard memory

Configurable to 8GB.

4GB of 1600MHz LPDDR3 onboard memory

Configurable to 8GB.

Size and Weight Height: 0.11-0.68 inch (0.3-1.7 cm)
Width: 12.8 inches (32.5 cm)
Depth: 8.94 inches (22.7 cm)
Weight: 2.96 pounds (1.35 kg)2
Height: 0.11-0.68 inch (0.3-1.7 cm)
Width: 12.8 inches (32.5 cm)
Depth: 8.94 inches (22.7 cm)
Weight: 2.96 pounds (1.35 kg)2
Graphics Intel HD Graphics 4000
Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 2560 by 1600 pixels on an external display, both at millions of colors
Thunderbolt digital video output
Native Mini DisplayPort output
DVI output using Mini DisplayPort to DVI Adapter (sold separately)
VGA output using Mini DisplayPort to VGA Adapter (sold separately)
Dual-link DVI output using Mini DisplayPort to Dual-Link DVI Adapter (sold separately)
HDMI audio and video output using third-party Mini DisplayPort to HDMI Adapter (sold separately)
Intel HD Graphics 5000
Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 2560 by 1600 pixels on an external display, both at millions of colors
Thunderbolt digital video output
Native Mini DisplayPort output
DVI output using Mini DisplayPort to DVI Adapter (sold separately)
VGA output using Mini DisplayPort to VGA Adapter (sold separately)
Dual-link DVI output using Mini DisplayPort to Dual-Link DVI Adapter (sold separately)
HDMI audio and video output using third-party Mini DisplayPort to HDMI Adapter (sold separately)
Camera 720p FaceTime HD camera 720p FaceTime HD camera
Ports Two USB 3 ports (up to 5 Gbps)
Thunderbolt port (up to 10 Gbps)
MagSafe 2 power port
SD card slot
Two USB 3 ports (up to 5 Gbps)
Thunderbolt port (up to 10 Gbps)
MagSafe 2 power port
SDXC card slot
Wireless 802.11n Wi-Fi wireless networking;3 IEEE 802.11a/b/g compatible
Bluetooth 4.0 wireless technology
802.11ac Wi-Fi networking;3 IEEE 802.11a/b/g/n compatible
Bluetooth 4.0 wireless technology
Battery Life Up to 7 hours wireless web

Up to 30 days standby time

Built-in 50-watt-hour lithium-polymer battery

45W MagSafe 2 Power Adapter with cable management; MagSafe 2 power port

Up to 12 hours wireless web
Up to 10 hours iTunes movie playback
Up to 30 days standby time
Built-in 50-watt-hour lithium-polymer battery
45W MagSafe 2 Power Adapter with cable management; MagSafe 2 power port
References 2012 Air 2013 Air

Should I upgrade to Mountain Lion OS X

There has been some confusion over weather I should upgrade to Mountain lion because

  • It makes your computer slow
  • The upgrade might crash your data
  • The Air Play does not work
  • Siri Dictation is stupid
  • I lost some nice features such as active corners and multiple screens
  • They took away some cool features of Safari
  • It makes your computer hot and I mean seriously hot
  • Over all it is not worth it

Well when I was upgrading, I said to myself, what ever happens, at least I am going to write a review about it so here it is.

 

The upgrade Process

It too 1 hour and 4 min in total to install Mountain Lion on my 2011 macbook pro 13″. This includes only the time of installation. It took about 33 min to download the Mountain Lion OS itself. It is said, it takes considerably shorter on Macbook Air, as less as 15 min.

First Verdict

All installation went smooth. It had opened multiple sites in Safari and I really wanted to save it. I bookmarked all of it just in case. After the upgrade, all my browsers were there as it is. I check my active corners, all were still active. I also check my multiple desktop and they worked just as it used to. So no complains there. It did make my laptop hot, considerably hot! Just 5 min ago, the temperate on my macbook pro read 86C. I would clearly hear the fan. My macbook has been running really quite up till not or may be in rear occasion, but at least right now it read 62C, this is till higher than the temperature I recorded before the upgrade which was 54C. So yes so far it did make the temperature go high and it will have adverse affect on the batter life as well.

Up time before and after the Upgrade

Before the upgrade, the uptime for my macbook pro 13 with 8GB of ram was 1:25 sec and 1:18 seconds for two instances. I have to yet restart my pc to find the new uptime. This time btw include the time it takes from select the OS to the time when my calculator is displayed when the computer starts.

Over all verdict

This review is not complete. I have upgrade just over 1 hour ago. Over all I would recommend this upgrade. Please visit later for full comparison review before and after with measure data.

SVN Server for Mac OSX

If you have worked with SVN Repositories on Windows and you are migrating to a Macintosh, you might be wondering if there is any free SVN Server available for mac such as Visual SVN?

The answer is, Yes. There is one that ships right in the box with Mac OSX. It is included both in Snow Leopard and Lion. The trick is though it does not have any GUI. You have to use command line to create and manage your repository. That may not be the best thing in the world. But apart from that is is very powerful. You can check out things from a local system, remote server, HTTPS server and works very smooth. I have had many troubles with SVN Servers on Windows but not on Mac.

A quicker tutorial on how to use SVN on mac can be found here

I will try to guide you brief how to setup your repository.

1. Type “Terminal” in spot light (that is search in top right corner). You will see Terminal in the result. Click on it to start Terminal.

2. Where you want to create the repository? It is best to create a separate folder for your repository. Lets create one now

mkdir MyFiles
cd MyFiles

Note that we create a f older first then we moved into that folder.

3. Next create repository

svnadmin create .

This says, create SVN Repository in the current folder. Dot is for current folder. We could have combined the first two steps into one by issuing this command without creating any directory

svnadmin create MyFiles

This would create MyFiles Repository and will store it in MyFiles folder.

4. The next step would be to import files

svn import destination-folder file:///full-path-to-the-repository -m "Initial Import"

The first argument to svn import is

  1. Destination Folder
  2. Full path to your repository folder

The last argument is just a comment. It is best to put meaningful comments.

This is all your need to setup a repository on MacOSX.

The next step would be, you want to use this repository. So you have check out. Use the following command to check out your files into any folder you want

svn checkout file:///full-path-to-the-repository destination-folder
svn checkout . ../workinCopy (example)

Note that I used the . (dot) to indicate checkout everything in the current folder. The second is path to the folder where the files will be copied.

The next thing is, you want to work in the working copy. Basically you will need SVN client where you can see your work, what have you changed, what needs to be reverted, see difference between working copy and repository etc. There are a couple of good SVN Clients for although they are not free

  • CornerStone
  • Version

Macbook Pro 2011 vs 2012

The specs of macbook pro 2011 13″ laptop are not easily available on apple.com site. If you want to look at it, here is the apple.com link

Here I will do a breif comparison, should you upgrade and what has changed and what has not.

Macbook Pro 2011 vs 2012 13In Model
No Comparison Macbook Pro 2011 Macbook Pro 2012 Verdict
1 Resolution 1280 x 900 Max 1280 x 900 Max Same
2 Screen Size 13" 13" Same
3 Camera 720p 720p Same
4 Processor Sandy Bridge i5 Ivy Bridge i5 2012 Wins
5 Graphics Card HD 3000 integrated HD 4000 integrated 2012 Wins
6 Memory 4GB 1333 MHz 4GB 1600 MHz 2012 Wins
7 Hard Disk 320 GB 500 GB 2012 Wins
8 CD Drive super drive none 2012 looses
9 Wired Ethernet RJ45 none 2012 looses
10 Thunderbolt 1 2 2012 Wins
11 USB 3 none 2 2012 Wins
12 HDMI Output through thunderbolt sperate HDMI provided 2012 Wins
13 Weight 4.46 lb 4.46 lb Same
14 Battery Life 7 hours 7 hours same

From the specs about it basically means, 2012 macbook pro 13″ wins clearly over 2011 macbook pro 13″ primarily because of faster processor, better integrated graphics card, faster ram, support for USB3 and HDMI output.

If you have a 2011 macbook pro or even 2010, I would say you do not need to upgrade because at least you can brag about the CD drive and wired ethernet that you have have. Plus although the new macbook pro is going to be faster, the speed of the older macbook pro is fast enough for every day and even advance task. Since the design of the 2012 macbook pro has not changed, they basically will look the same.

If you have a 2010 macbook pro, you might want to consider the 2012 macbook pro because it has a better FaceTime camera. The 2011 camera is really bad. Apart from that, you really do not need to upgrade.

If you haven’t not owned a macbook pro, you should buy the new macbook pro 2012. This is significant upgrade for someone new to buy the macbook pro 2012 and I am sure you will be thrilled with it.

I all of the above version, I would recommend to upgrade your RAM to 8GB or 16GB. They will signficanly make your macbook pro faster esp if you are used to running multiple software together. For example you run photoshop, Windows VM or other big programs. If you want to RUN Virtaul Windows like Parallel Desktop, I would recommend to go 16GB (not 8GB) as they really need more memory.

Macbook pro 2011 esp that his memory problem. 4GB of memory is definitely not enough for heavy laptop user and you will basically see the thinking ball all the time.

If you have any benchmarks of the old one vs the new one, please send it me along images so I can post it.
Thank you

This was a brief comparison of Macbook pro 2011 vs 2012 feature wise and had provided brief buying/upgrade guide. Hope it is helpful.

N-400 pdf does not open on Mac because of Security Reason

If you tried to download the Citizenship form N-400, you would notice that it does not opon. It shows wrong file size (106kb) and it says you need pdf to open this file.

The error appears because of security reason. This particular pdf file has high security features so that it can not be edited and saved. Mac OSX Snow Leopard, Lion, Mountain Lion all have default pdf writers. That means you do not need to download pdf reader or writer. The OSX itself allows to save any file as pdf or edit a pdf. N-400 form cannot be opened on a system which has pdf writer installed on it. There it will not open on mac.

You will run into similar problem on Windows if your installed any PDF writer such as PrimoPDF which is basically a driver to write print a document as pdf file. You must uninstall any pdf writer before you could open N-400 form.

You can use XPS reader on Windows to save you your pdf file though. Simply open the file as pdf, fill it out and then issue print command. Make sure you select XPS document when printing. The file will be save with data. Of course you can only open this document on a windows plateform where XPS is installed. XPS is installed on all Windows 7 (and Vista I guess) PCs. This solution works pretty well.

Macbook Pro Slow and Freezes a lot

If you 2011 macbook pro is slow, freezes a lot, it could be because it needs more RAM. They come with 4GB RAM but if you open a lot of browser window and doing multiple things, you will quickly find that 4GB is not enough the OS will start paging the memory contents to external hard drive. Here is the usage below

 

Macbook Pro Activity Monitor Lions

 

There are a couple of things look for. Free Memory is 520 MB. The most important thing that makes your computer slow is the swap used. Every time the OS uses swap, it is going to freeze. You can prove it by running activity monitor on. Work in you laptop as you would regularly do. As soon as it freezes, check your activity monitor. You will notice that the swap is either increasing or increased. This proves the freeze is because of memory swap.

There is an interesting fact about macbook pro (and other computers) freezing. Even when it freezes it does not uses full memory power. That means the freeze is because of other bottleneck not the CPU itself. In this case , it basically reads/write to hard drive and since the hard drive is quite slow, it has to stop on everything while fetching and swapping that data. This makes your laptop slow.

If you think this is the reason your mac is slow, because let me know in comments. Ideally the swap size should be 0 or close to 0. A possible solution is to upgrade you ram to 8 GB or 16 GB. Since RAM is really cheap now a days, it cost less than $50 to upgrade to 8GB. Note, the apple site list macbook pro upgradable to 8GB but you can actually upgrade it to 16GB. This is undocumented.