2)Fist of all,my kernel is 3.11.0-15 generic.When i tried to uplift to saucy,there were zero packages upgraded,and told me that i was running the latest version.I,also,downloaded the 12.04.4 and nothing changed.
I don't know if it's important but right before i login i get some "scrambled" horizontal lines on my screen.
1)I had already tried My computer boots to a black screen, what options do I have to fix it? before i post my question,but as it was marked as duplicate,i tried it again,but nothing changed. I,also,tried to install mint,opensuse,mageia and every ubuntu since ubuntu 7 but none of them worked.I tried many answers i saw in other questions but nothing happened.
The problem is that when my screen turns black there is nothing i can do,so from the point i log in i have approximately 3 minutes to do whatever i have to.
From what i've read my assumption is that this is caused because my graphic card is old and not supported by the new kernels,so i should downgrade it if possible.
i tried to install ubuntu,for dual boot with win7,through live cd a few days ago,but the screen kept blacking out.I tried to install it through wubi,and it was succesfull(only in 12.04.2 & 12.04.4) but after logging in,the same thing happened.I browesed a lot of questions and tried all the answers but nothing worked. I also tried to install mint,fedora and an older version of ubuntu but all i got was a black screen and the message "Power Saving Mode",although it's not a monitor issue,since i tried with another one and had the same result.
Is there anything i can do to fix it? thanx in advance.
PS1:My graphic card is Ati Radeon 3870
PS2:I had installed ubuntu and fedora,on my pc,at about 6 years ago and didn't face any problems.I installed ubuntu again,a year and a half ago,and i think there was a problem during the installation,but at the end of the day i had it perfectly installed.