Carolina_Cordero
April 11th, 2015, 02:56 AM
Hi.
I'm posting in this forum because I need urgent help.
I'm new Ubuntu user coming from Windows environments.
I've decided to install Ubuntu Desktop 14.04.2 64-bit on my Dell Studio 1558 laptop, for having it available in dual boot with my existing Windows 7 installation.
The specs of my Dell Studio 1558 are:
Intel Core i7 processor, 64bit
8GB RAM
ATI Radeon HD 5470 Graphics card
500GB hard drive
I must say I've never had any problems with this hardware.
I've installed Ubuntu 14.04.2 in dual boot, created three partitions: ext4 (/) primary partition, swap partition and ext4 (home) partition.
I've checked the two options: 1) Download updates while installing, and 2) Install this third-party software now
The setup process completed perfectly fine, the dual boot menu was successfully updated, I've could log in Ubuntu and Windows, and I've started to work in my Ubuntu fresh installation: I familiarized with the environment, opened a PDF book, a terminal window, Mozilla Firefox, looked some pictures, everything worked fine.
After about 20 minutes working with Ubuntu, I've received a notification for updates available, so I've choosen to download them and to install them.
The download and installation of this first update took about 30-45 minutes, after that Ubuntu ask me to reboot the computer.
The problems started here: when I choose to reboot, the computer started to show screen flashes, with vertical colored stripes. After that the system rebooted and continued to showing this vertical colored stripes. I rebooted again and logged into Windows, where the problem persisted (it was not only in Ubuntu).
After that I rebooted again, but this time the laptop screen was completely dead: I now can't see Dell logo, neither Ubuntu boot menu, nothing. The screen is completely black.
I've connected the computer to an external monitor via VGA cable, also to a led tv via HDMI cable, and the video output is completely distorted, as you can see in this images:
HDMI Output:
http://i.imgur.com/WFe4Xmx.jpg
VGA Output:
http://i.imgur.com/F6nykl4.jpg
The laptop screen continues dead.
As you can see, I need urgent help, I wonder if it's possible that the first update on a fresh Ubuntu installation could have damaged the hardware, I must say I haven't installed any specific graphics/video driver, none, it's was a fresh Ubuntu installation.
I was wondering if there is some command to rollback the last update, I don't know if such command exists, any help is appreciated since I'm new to Ubuntu.
Thanks.
I'm posting in this forum because I need urgent help.
I'm new Ubuntu user coming from Windows environments.
I've decided to install Ubuntu Desktop 14.04.2 64-bit on my Dell Studio 1558 laptop, for having it available in dual boot with my existing Windows 7 installation.
The specs of my Dell Studio 1558 are:
Intel Core i7 processor, 64bit
8GB RAM
ATI Radeon HD 5470 Graphics card
500GB hard drive
I must say I've never had any problems with this hardware.
I've installed Ubuntu 14.04.2 in dual boot, created three partitions: ext4 (/) primary partition, swap partition and ext4 (home) partition.
I've checked the two options: 1) Download updates while installing, and 2) Install this third-party software now
The setup process completed perfectly fine, the dual boot menu was successfully updated, I've could log in Ubuntu and Windows, and I've started to work in my Ubuntu fresh installation: I familiarized with the environment, opened a PDF book, a terminal window, Mozilla Firefox, looked some pictures, everything worked fine.
After about 20 minutes working with Ubuntu, I've received a notification for updates available, so I've choosen to download them and to install them.
The download and installation of this first update took about 30-45 minutes, after that Ubuntu ask me to reboot the computer.
The problems started here: when I choose to reboot, the computer started to show screen flashes, with vertical colored stripes. After that the system rebooted and continued to showing this vertical colored stripes. I rebooted again and logged into Windows, where the problem persisted (it was not only in Ubuntu).
After that I rebooted again, but this time the laptop screen was completely dead: I now can't see Dell logo, neither Ubuntu boot menu, nothing. The screen is completely black.
I've connected the computer to an external monitor via VGA cable, also to a led tv via HDMI cable, and the video output is completely distorted, as you can see in this images:
HDMI Output:
http://i.imgur.com/WFe4Xmx.jpg
VGA Output:
http://i.imgur.com/F6nykl4.jpg
The laptop screen continues dead.
As you can see, I need urgent help, I wonder if it's possible that the first update on a fresh Ubuntu installation could have damaged the hardware, I must say I haven't installed any specific graphics/video driver, none, it's was a fresh Ubuntu installation.
I was wondering if there is some command to rollback the last update, I don't know if such command exists, any help is appreciated since I'm new to Ubuntu.
Thanks.