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Thread: Stuck with low-graphics mode on Dell Latitude E6440 with AMD

  1. #1
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    Stuck with low-graphics mode on Dell Latitude E6440 with AMD

    Hi everyone,


    As a loyal Ubuntu community member, I took some of my spare time to take Ubuntu Trusty for a spin and check that all was running fine on the different hardware I am running at home and work. I did a fresh install from a live USB.


    Ubuntu Trusty works absolutely fine on my Dell Latitude E6400 and E6430 laptops and I am very happy with its performance.

    However, I can't even get to the lightdm login on my Dell E6440 (running AMD hybrid graphics). Instead, I am greeted with a low-graphics mode pop-up and can only drop back to a shell session. Trying to restart lightdm just keeps showing the same pop-up.


    In the last 3 day, I have kept the system up to date via a chroot on my parallel Debian install and tried again to boot Ubuntu Trusty, but still nothing. Still running my Debian unstable system with GNOME 3 for now.


    Any suggestions ? Thanks.



    Ghis

  2. #2
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    Oct 2008
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    ExodusHair<Čubura
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    Ubuntu Development Release

    Re: Stuck with low-graphics mode on Dell Latitude E6440 with AMD

    Did You try with
    Code:
    radeon.dpm=0
    kernel-boot-line switch?

  3. #3
    Join Date
    Nov 2010
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    Re: Stuck with low-graphics mode on Dell Latitude E6440 with AMD

    did not work, but thanks for this suggestion

  4. #4
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    Nov 2010
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    Re: Stuck with low-graphics mode on Dell Latitude E6440 with AMD

    Any suggestion ? Otherwise, what specific details should I provide if I were to open a bug report regarding this issue ?

  5. #5
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    Ubuntu Development Release

    Re: Stuck with low-graphics mode on Dell Latitude E6440 with AMD

    Quote Originally Posted by gigix85 View Post
    Any suggestion ? Otherwise, what specific details should I provide if I were to open a bug report regarding this issue ?
    You may have hit the pixbuf bug. See my recent thread. When it says low graphics try a get tty and use the code. I had to print it out to sort my laptop out and manually type it in.

  6. #6
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    Nov 2010
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    Re: Stuck with low-graphics mode on Dell Latitude E6440 with AMD

    It did not work either unfortunately.

  7. #7
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    2,060
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    Ubuntu 17.04 Zesty Zapus

    Re: Stuck with low-graphics mode on Dell Latitude E6440 with AMD

    Take a look at these bug reports:

    https://bugs.launchpad.net/ubuntu/+s...x/+bug/1290745

    https://bugs.launchpad.net/bugs/1301839

    They seem to be the same hardware and same issue that you are having
    Catalan Team: Tingueu presents les normes d'or dels fòrums d'Ubuntu: poseu un títol entenedor i apropiat als vostres fils; digueu quina versió i variant d'Ubuntu feu servir i a quina màquina; i què heu provat abans de demanar ajut.

  8. #8
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    Nov 2010
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    Re: Stuck with low-graphics mode on Dell Latitude E6440 with AMD

    For me both 12.04.4 and 14.04 beta 2 do load in live session. It's any subsequent boot after install that is however not working.

    Quote Originally Posted by wgarcia View Post
    This could be it. Marked as affected and will help in confirming/triagging this one.

    Thanks for pointing me at those bug reports. Very much appreciated.

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