Error to load live CD

[ivan74]

Hi, I'm very new in kubuntu this is my first time. The problem comes when im loading the live usb. The pc loads the usb and some screen of kubuntu apears, but when the mouse apears whit a blue backround it blocks, I can move the mause put nothing more, few minutes later the screen becomes black, and some error lines like this apears

nouveau E[kwin]2228]] failed to idle channel 0xcccc0000 E[kwin]2228]]

I don't know the problem. Before I have tried ubuntu 14.04 whit no problem. I use kubuntu 14.04 whit unetbootin loaded with crunchbang. The iso image checksum md5 is correct, and I have tried whit both images 32 and 64 bits. Can somebody hel me? and sorry for my english.

[kiraitachi]

Pretty sure its a problem with your graphic card, looks like an nvidia issue, although if you used before Ubuntu 14.04 and didnt have any problem you shouldn´t have none either right now.

https://bugs.launchpad.net/ubuntu/+s...g/+bug/1097178

I found the bug above and looks related. I suggest burning the 14.04 Image to a dvd or a USB with unetbootin.

[ivan74]

Yes it's Nvidia it's a geforce go 7400, I don't understand the problem the first day of ubuntu 14.04 with the same usb I have tried it with no problrm and linux mint 16/17... look like a kernel problem, a lot of people with ubuntu 14.04 have the same problem but any solution.... i will wait some time.

[kiraitachi]

Im also spanish, just looked your location haha Im from madrid, anyway I will keep the conversation in english for any other people with related problems, you should try with this ppa if your able to log in pressing CTRL+ALT+1 to go to terminal :

https://launchpad.net/~xorg-edgers/+archive/ubuntu/ppa

Its perfect to get latest nvidia drivers already compiled, If by anycase still doesnt work then try to enable the default opensource nvidia drivers. Try to check out this docs:

http://www.dedoimedo.com/computers/u...il-nvidia.html