06-02-2013, 04:46 PM
@epixoip: thanks, I understand now 
that is a good explanation.
@KT819GM: I did run that command post the installation of the Catalyst Driver. Only after that I rebooted and faced this issue.
now, I tried the options:
ssh - It appears that ssh is not installed by default on Ubuntu 12.04 and so though I am able to ping it from another machine in the same LAN, I am unable to SSH. I even ran Nmap against this IP and found 0 open ports (Ubuntu, by default has no open ports, I think).
So, ssh is not an option for me now as I need to first install openssh for which I need to get into Ubuntu.
failsafe - I think we need to go to this option from the Recovery Mode (listed in the GRUB menu). I did that and it presented me a Recovery Menu. I selected, failsafeX option from there to run in failsafe graphic mode.
It prompted me with: "Continuing will remount your filesystem in read/write mode and mount any other filesystem defined in /etc/fstab. Do you wish to continue?"
I selected Yes and now the screen goes just blank. There is no "out of frequency" box displayed either.
I even tried the following options by editing the GRUB menu for my current linux kernel:
1. replace "quite splash" with "nomodeset"
2. replace "quiet splash" with "xforcevesa"
3. replace "quiet splash" with "radeon.mode=0"
in all these cases, first a purple screen shows up for a few seconds, followed by a blank screen which shows the text "ubuntu login:" but screen goes blank again even before I can read it.
I wonder if there is any other way before I go ahead with a reinstallation.
I know these questions are specific to Ubuntu, but I am getting more help and suggestions here than the official Ubuntu Forums which were just suggesting me the usual steps.
Thanks
that is a good explanation.@KT819GM: I did run that command post the installation of the Catalyst Driver. Only after that I rebooted and faced this issue.
now, I tried the options:
ssh - It appears that ssh is not installed by default on Ubuntu 12.04 and so though I am able to ping it from another machine in the same LAN, I am unable to SSH. I even ran Nmap against this IP and found 0 open ports (Ubuntu, by default has no open ports, I think).
So, ssh is not an option for me now as I need to first install openssh for which I need to get into Ubuntu.
failsafe - I think we need to go to this option from the Recovery Mode (listed in the GRUB menu). I did that and it presented me a Recovery Menu. I selected, failsafeX option from there to run in failsafe graphic mode.
It prompted me with: "Continuing will remount your filesystem in read/write mode and mount any other filesystem defined in /etc/fstab. Do you wish to continue?"
I selected Yes and now the screen goes just blank. There is no "out of frequency" box displayed either.
I even tried the following options by editing the GRUB menu for my current linux kernel:
1. replace "quite splash" with "nomodeset"
2. replace "quiet splash" with "xforcevesa"
3. replace "quiet splash" with "radeon.mode=0"
in all these cases, first a purple screen shows up for a few seconds, followed by a blank screen which shows the text "ubuntu login:" but screen goes blank again even before I can read it.
I wonder if there is any other way before I go ahead with a reinstallation.
I know these questions are specific to Ubuntu, but I am getting more help and suggestions here than the official Ubuntu Forums which were just suggesting me the usual steps.
Thanks