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Thread: Can't install 14.04 with amd graphics

  1. #1
    Join Date
    Jan 2015
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    8

    Can't install 14.04 with amd graphics

    I have an asus motherboard with an amd a6800k CPU, I had no problems with version 13 but upgrading and even doing a fresh install just boots up to a black screen, I know there are problems with the graphics drivers but I can't find a fix anywhere, and when I go into bios I have 3 options to boot from with ubuntu and I can't figure out why, one of them brings me to grub recover and the other 2 just go to black screen. , if anyone can point me in the right direction it would be greatly appreciated, it's not even giving me an error message that I can google.

  2. #2
    Join Date
    Mar 2010
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    USA
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    Ubuntu Development Release

    Re: Can't install 14.04 with amd graphics

    On an installed system-
    1. If you have a multi-boot yss installed skip #2
    2. At just as the BIOS messages pass, start intermittently pressing the <left-shift> key.
    3. When the Grub Menu appears, prees <E> to enter an edit mode
    4. While in edit mode, <Arrow-Down> to Linux Boot line. It starts with "linux".
    5. <Arrow-Right> to the end of the line.
    6. ** append the end of that line with the kernel boot option "radeon.modeset=0".
    7. Press <cntrl><X> to boot
    8. After boot. Install your driver from: System Settings > Last tab, Additional Drivers... Or any other method you are comfortable with (More info in the first 2 post of my sticky, link in my signature line)

    Tell me how it goes and ask question if you have them...
    Multi-Boot= Various flavours of Windows, Linux and Unix... Ubuntu user # 33563, Linux user # 533637
    Sticky: [all variants] Graphics Resolution- Upgrade /Blank Screen after reboot
    Boot Info Script courtesy of community member meierfra

  3. #3
    Join Date
    Jan 2015
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    8

    Re: Can't install 14.04 with amd graphics

    Thanks for responding? I can't access the grub menu, but I can't access the grub menu using that for some reason, I got it to boot right now using fail safe graphics mode, can I edit that file from the command line? I have /boot/grub/ grub.cfg open right now and also etc/default/grub open. But I know I can't edit the /boot/grub/grub.cfg , or can I find it in /etc/grub.d. Here is a picture of etc/default/grub. , or am I in the totally wrong place
    Attached Images Attached Images

  4. #4
    Join Date
    Mar 2010
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    USA
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    Ubuntu Development Release

    Re: Can't install 14.04 with amd graphics

    If you are that far, just go to System settings > Last Tab of that is Additional Drivers... from there, if drivers are still selected. remove. Then or if not, install what is recommended.

    The reason (if it says there are drivers being used) that you would remove, then install... is that it would rebuild the drivers on the current kernel.
    Multi-Boot= Various flavours of Windows, Linux and Unix... Ubuntu user # 33563, Linux user # 533637
    Sticky: [all variants] Graphics Resolution- Upgrade /Blank Screen after reboot
    Boot Info Script courtesy of community member meierfra

  5. #5
    Join Date
    Jan 2015
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    8

    Re: Can't install 14.04 with amd graphics

    Ok I am in there I attached a picture, it's telling me no proprietary drivers are in use and that amd/anti Richland Radeon HD 8670d is using the recommended driver X.Org X server - Amd/ATI display driver wrapper from x-server-org-video-ati(open source and tested)

    its giving me the option to switch it to using video driver for the amd graphics accelerator from fglrx or fglrx-updates
    Attached Images Attached Images

  6. #6
    Join Date
    Mar 2010
    Location
    USA
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    Ubuntu Development Release

    Re: Can't install 14.04 with amd graphics

    As another Radeon (and nVidia) user to another... you will be much happier with the flgrx proprietary drivers. The opensourced drivers from Xorg are very basic and lower "featured."
    Multi-Boot= Various flavours of Windows, Linux and Unix... Ubuntu user # 33563, Linux user # 533637
    Sticky: [all variants] Graphics Resolution- Upgrade /Blank Screen after reboot
    Boot Info Script courtesy of community member meierfra

  7. #7
    Join Date
    Jan 2015
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    8

    Re: Can't install 14.04 with amd graphics

    Thanks you have been a great help, can you tell me why a clean installation of 14.04 gives me 3 separate boot options? The two labeled ubuntu are UEFI options on my main screen.
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  8. #8
    Join Date
    Jun 2007
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    Arizona U.S.A.
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    Re: Can't install 14.04 with amd graphics

    You are looking at the UEFI boot manager. One of those (probably the first one) will go to the grub menu, or boot directly to Ubuntu if its the only OS. Sonetimes, one or more of these don't work. If you do nothing on startup, the boot manager screen shouldn't show, and it will boot to the first option. Your two Ubuntu options may be for secure boot and no secure boot - cant tell without seeing the boot loader each goes to.

  9. #9
    Join Date
    Jan 2015
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    8

    Re: Can't install 14.04 with amd graphics

    I actually can't get anything to work, now when I try to load fail safe graphics mode I have no mouse and can't get passed the first window warning me I'm in low graphics mode, what if I format disk, load ubuntu 13. Remove the AMD drivers and then upgrade to 14, pressing the left shift key isn't doing anything I'm still going to black screen. Can't even get into fail safe graphic mode.. Thanks again for all the help

  10. #10
    Join Date
    Jan 2015
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    8

    Re: Can't install 14.04 with amd graphics

    Quote Originally Posted by Dennis N View Post
    You are looking at the UEFI boot manager. One of those (probably the first one) will go to the grub menu, or boot directly to Ubuntu if its the only OS. Sonetimes, one or more of these don't work. If you do nothing on startup, the boot manager screen shouldn't show, and it will boot to the first option. Your two Ubuntu options may be for secure boot and no secure boot - cant tell without seeing the boot loader each goes to.

    The one actually goes to grub rescue>. The first 2 are just going to a black screen..

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