Blank Screen or Black Screen after 'Startx' in Backtrack: LIVE CD / USB boot

Hello readers! Today I am posting this post because I have faced this problem recently while using BackTrack Linux. I made a bootable linux usb and booted using it. Everything went okay until I wrote the command "Startx" for entering GUI of BackTrack R3; my screen went blank/black. Not any GUI items were displayed, neither mouse pointer; any keys of keyboard was not functioning. I than directly turned off my laptop pressing power button for few seconds.

I than booted my laptop using "Ubuntu" and started to search the solution and I eventually found the solution to it.

SOLUTION WHEN BOOTING FROM Live USB or DVD:

When you select the boot device from Bios pressing specific key in keyboard while starting the computer. You will be given a menu where you can select your options as below:

You can see that there is written "Press [Tab] to edit options".
steps:

1. Press [Tab] when the above screen appears
2. You will be given the line: .........vga=791--
3. Change it to: .........vga=791 i915.modeset=1
4. Press [Enter]

Now, your problem is solved.

How to change the automatic boot time in Grub ?

If you like to use any Linux distribution which installs Grub 2 in your system and you want to make greater or lesser automatic boot time ( The highlighted entry will be booted automatically in 10 seconds. )  than you are in right blog.

Use this scenario according to your need:

I installed Ubuntu also side by side(creating new partitions) with Windows OS. When I start laptop my system asks me to select OS to boot and if I don't respond it to 10 seconds than it automatically boots Ubuntu which is my default OS. I want to change the respond time to 15 seconds.

My Grub Menu

Solution:

1. Boot your PC/Laptop/Desktop/Computer and load Ubuntu (or any Linux distribution)
2. Open Terminal (ctrl + alt + t  => in Ubuntu; if your system is shell or command prompt i.e. not a GUI than got to step 3)
3. Type commands: sudo gedit /etc/default/grub/
4. It may ask you to enter your password.
5. Gedit, notepad like text editior, will open.
6. Find the line with: GRUB_TIMEOUT=10             (This line holds the response waiting time in seconds.)
7. Now, change the number 10 to 15 (this is in seconds)
8. Save it and close
9. Again, type command: sudo update-grub
10. Now, reboot your system, you get 15 seconds as response waiting time.

Thank You! For reading this post.
If any doubts, you are free to ask in comments.

Similar Post: 

How to make Windows OS (or any OS) as default OS in GRUB 2 ?

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How to make Windows OS (or any OS) as default OS in GRUB 2 ?

After a long pause, I am back with a useful post for you. If you like to use any Linux distribution which installs Grub 2 in your system and you want to make Windows or any other OS as default in Grub so that if you don't press any key in Grub your PC will get selected OS loaded than you are in right blog. Not only Linux distribution installs Grub; you can manually install grub in your system.

Use this scenario according to your need:

I have pre-installed Windows OS in my laptop ( laptop version is not important). Now, I installed Ubuntu also side by side(creating new partitions). But, I rarely use Ubuntu and the problem is when I start laptop my system asks me to select OS to boot and if don't respond it automatically boots Ubuntu which is in the top of my menu. I want to Windows OS to be loaded instead of Ubuntu when I don't respond (select the OS) i.e. change my default OS to Windows OS from Ubuntu.

My GRUB Menu; windows OS is in 5th position here

Solution:

(Before starting the solution please note: How many option are provided in the Grub menu (OS selection menu) when you are booting? The number of line in which your desired OS lies.)

1. Boot your PC/Laptop/Desktop/Computer and load Ubuntu (or any Linux distribution)
2. Open Terminal (ctrl + alt + t  => in Ubuntu; if your system is shell or command prompt i.e. not a GUI than got to step 3)
3. Type commands: sudo gedit /etc/default/grub/
4. It may ask you to enter your password.
5. Gedit, notepad like text editior, will open.
6. Find the line with: GRUB_DEFAULT=0             (This line holds the information of which OS to be loaded as default)
7. Now, change the number 0 to the number (in my case its 4 for my Windows OS) (get the line number of your desired OS and subtract 1 in it) : Suppose your OS list in Grub as a List and its initial value position will start from 0 i.e. the OS on the top of menu has position value 0 so it loads as default OS previously)
8. Save it and close
9. Again, type command: sudo update-grub
10. Now, reboot your system, you get desired OS loaded as default.

Thank You! For reading this post.
If any doubts, you are free to ask in comments.

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What are new in iPhone 6?

iPhone 6 predictions and wishes from the Market:

On 21 September 2012, Apple unveiled the iPhone 5, the market reaction was not as expected. However, it was able to sell five million of its new iPhone® 5, just three days after its launch and after a week it over-took the Samsung Galaxy S III Smartphone. The crazy market of IPhone is immediately expecting new iPhone version maybe this reason for Apple to launch iPhone 6 soon as Samsung, Nokia and HTC has released Galaxy S IV, Nokia 920 and HTC One respectively, with better look and performance to challenge market of iPhone.

iPhone 6 Prediction look (Source: Google image)

Some predictions regarding iPhone 6 in market:

1. Apple's working on plastic cases for iPhone 6, mixing plastic and metal in such a way that "the internal metal parts [are] able to be seen from outside through special design.
2. It'll have a better battery
3. Running iOS 7 to utilize more processor cores and is expected that Apple will unveil the next major revision of iOS at its WWDC conference in June.
4. Available with 128 GB storage
5. Giant Retina+ IGZO 4.8-inch display for ultra-high screen resolutions and optimised high energy efficiency
6. New form factor with no home button
7. Gesture control
8. Quad-core A7 processor (expected to see in iPad first)
9. 13-megapixel camera with no compromising image quality
10. Eye-tracking
11. Sonar sensor instead of infrared sensor to detect location of phone
12. Better 4G LTE
13. Ultra-fast 802.11ac Wi-Fi
14. Wireless charging
15. Expected to unveil in mid-2013 or most probable 2014

iPhone 6 Sketch (image source: Google image)

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