On 05/02/16 11:03, David A. De Graaf wrote:
On Thu, Feb 04, 2016 at 06:55:11PM -0700, Robin Laing wrote:
On 31/01/16 16:29, Ed Greshko wrote:
I wrote the inquiry below to the fedora users maillinglist
but there was no response except a suggestion to ask here,
so this is it.

I recently had a problem with the nvidia-340xx.  I would only get a blank 
screen with no X
being started.  I did not check the logs I just did what has worked for me in 
the past.

1.  dnf erase *nvidia*
2.  reboot   (You could either boot to gui using nouveau or multi-user mode)
3.  dnf install akmod-nvidia-340xx   (In your case akmod-nvidia-304xx
4.  reboot



Since writing the text below, another Fedora 23
kernel-4.3.3-303.fc23.x86_64 made an appearance, along with a new
kmod-nvidia-304xx-4.3.3-303.fc23.x86_64-304.131-1.fc23.x86_64
but they exhibit the identical fault.

******
The latest two kernels and the nvidia-304xx module are incompatible.
That is, the nvidia.ko module built by akmod-nvidia-304xx won't load.
That means that my three machines with older nvidia video cards (one
built into the mobo) are stuck running the old

  kernel-4.2.8-300.fc23.x86_64
    kernel-4.3.3-300.fc23.x86_64
    kernel-4.3.3-301.fc23.x86_64

In the past, incompatibilities were resolved in about a week.
This time, it's nearly a month.  No new package of akmod-nvidia-304xx
or kmod-nvidia-304xx has shown up at the
rpmfusion-nonfree-updates[-testing] repo.

The akmod-nvidia-340xx module on another machine that needs it runs fine.

Does anyone have a clue when this older version of the nvidia module
might be fixed?

Here are the error messages with the newer kernel:

Console error message when trying to run 'startxfce':

(==) Using system config directory "/usr/share/X11/xorg.conf.d"
modprobe: ERROR: could not insert 'nvidia': Unknown symbol in module,
or unknown parameter (see dmesg)


 From dmesg:

    ...
[   12.563315] nvidia: module license 'NVIDIA' taints kernel.
[   12.563325] Disabling lock debugging due to kernel taint
[   12.573867] nvidia: Unknown symbol mtrr_del (err 0)
[   12.573977] nvidia: Unknown symbol mtrr_add (err 0)
    ...
[   31.162308] nvidia: Unknown symbol mtrr_del (err 0)
[   31.162397] nvidia: Unknown symbol mtrr_add (err 0)
    ...
[   81.656643] nvidia: Unknown symbol mtrr_del (err 0)
[   81.656736] nvidia: Unknown symbol mtrr_add (err 0)




I tried akmods for 340 on F23  and it doesn't work either.  It won't
compile.

Testing from a terminal using akmods --force to rebuild them, I found that
there is an error in the kernel source that won't work.

I will start a different thread about it.

Robin

Robin:
I'm glad to see (from your other thread) that you were able to fix
your nvidia-340xx setup.  As I said above, my experience with that
version has been completely satisfactory.  It is only the nvidia-304xx
module that is, and remains, broken.  Perhaps your experience
demonstrates why fresh installs should be preferred over upgrades.

Today my brother's machine in Italy that I maintain via an ipsec tunnel
also failed with the nvidia-304xx package and a dnf update.  To my
surprise I found his video card is a GeForce 605, which purports to be
new enough to be supported by the mainstream nvidia driver.  Sure enough,
when I installed the akmod-nvidia-358.16-1.fc22.x86_64, it worked.

So my experiments confirm that
   akmod-nvidia-358.16-1.fc22.x86_64         - works
   akmod-nvidia-340xx-340.96-1.fc23.x86_64   - works
   akmod-nvidia-304xx-304.131-1.fc23.x86_64  - fails


It is funny how the obvious seems to be missed when a problem occurs because we feel that it cannot be the obvious.

I still get stuck on that one, even after all these years. I need to slap myself for missing it.

Robin

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