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Thread: Force nouveau driver

  1. #11
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    Default Re: Force nouveau driver

    Maybe grub is configured with 'nomodeset' present. That will cause the 'nv' legacy driver to load instead.

    On ATI for current GPUs it falls back to radeonhd. On NVIDIA without KMS the nv driver is used (the nouveau driver supports only KMS). Note, newer ATI and NVIDIA GPUs are falling back to fbdev, if you specify the nomodeset kernel boot parameter.
    http://www.suse.de/relnotes/i386/ope...-NOTES.en.html

  2. #12

    Default Re: Force nouveau driver

    on my system, blacklisting nouveau happens in: /etc/modprobe.d/nvidia-desktop.conf

  3. #13

    Default Re: Force nouveau driver

    removing all nvidia* files in /etc/modprobe.d made nouaveu loaded

    linux-lhym:/home/fabio # lsmod | grep nouveau
    nouveau 782073 2
    ttm 74170 1 nouveau
    drm_kms_helper 45453 1 nouveau
    drm 231978 3 nouveau,ttm,drm_kms_helper
    i2c_algo_bit 13197 1 nouveau
    mxm_wmi 12859 1 nouveau
    video 18841 1 nouveau
    wmi 18590 2 nouveau,mxm_wmi
    button 13626 1 nouveau


    Now i have only a problem. The color depth is only at 16 bit and i can't find any option to increase. I am running kde 4.8

  4. #14

    Default Re: Force nouveau driver

    using sax3 gives only 24 bit as maximum resolution. Booting Xp on the same machine gives 32 bit. Maybe it's a nouveau bug?

  5. #15
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    Default Re: Force nouveau driver

    "Many modern desktop systems (Mac OS X, GNOME, KDE, Windows XP/Vista/7, etc...) offer an option for 24-bit truecolor with 8 bits for an alpha channel, which is referred to as "32-bit color".
    https://en.wikipedia.org/wiki/Color_...r_.2824-bit.29

    I know my intel driver with mesa only uses 24-bit colour, I should think nouveau would be similar.

  6. #16

    Default Re: Force nouveau driver

    Yes, i read that, but the screen appears like 16 bit. Tomorrow i'll post a screenshoot.

  7. #17

    Default Re: Force nouveau driver

    Here is the screenshoot. You see? Seems to have a 16 bit graphix!
    Using nomodeset gives the right color!
    http://imagebin.org/223170

  8. #18
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    Default Re: Force nouveau driver

    The 'nomodeset' causes the X-server to fall back to the more basic nv driver, which only provides limited 2D acceleration. (It seems the more advanced nouveau driver is not quite working correctly with your graphics hardware for some reason).

  9. #19

    Default Re: Force nouveau driver

    the only problem with nv is that i have only 1024x768 which is not so good, i'd prefer 1280x768.

  10. #20
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    Default Re: Force nouveau driver

    The best way to see what is occurring definitively is to view what is reported by the X-server in /var/log/Xorg.0.log

    It is a lengthy text file, so if you want to share the output here, cut/paste, and upload to SUSE Paste

    then post only the URL to it here.

    What might also be really useful, is to do this for the case where 'nomodeset' is used, and when it is not. The latter case, might help with finding out why the nouveau driver is set to use 16 bit colour depth.

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