Ubuntu – fglrx no screen found on ubuntu 14.04

14.04atifglrxxorg

i upgraded my computer from 13.10 to 14.04, now my screen goes black after booting, but i can access tty1.

after a little experimenting, i tried using start x it gave me this error (from /var/log/Xorg.0.log).

i have tried :

also fglrxinfo gave me this Error: unable to open display (null)

and all of them still gave me the same result, what option left that i have ? what should i do and is there a step that i miss ?

thank you

Best Answer

First of all what is the model of you graphic card ? It can be found using this command:

    lspci | grep VGA

I faced the same kind of issue recently. I had a Ubuntu 13.10 with a Radeon HD 3850 using fglrx-legacy drivers, and I was forced to remove them in order to upgrade to Ubuntu 14.04. The 14.04 generic display driver is ok but only provides a software rendering mode. I confirm that the standard fglrx drivers won't work (black screen) with old ATI cards such as the HD2xxx-4xxx series.

Once the 14.04 installed you can try to install fglrx-legacy drivers with those commands (worked for me on 13.04+, not tested yet on 14.04) or via Synaptic:

    sudo add-apt-repository ppa:makson96/fglrx
    sudo apt-get update
    sudo apt-get upgrade
    sudo apt-get install fglrx-legacy

more info in this post : Radeon HD 2000, 3000, 4000 on 12.10 Quantal: fglrx (legacy) 12.6 unsupported, what to do?

You can test if the drivers are properly working by using the following command

    glxinfo | grep render

Video drivers are always the painful part. I am also interested. Please keep us informed if you manage to solve your problem !

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