FAILURE TO BOOT AFTER REMOVING NVIDIA DRIVERS

English Install/Boot/Login
1

After a recent attempt to install my nvidia card using YaST, boot ended before loading KDE with the screen shuddering at high speed. I removed the Nvidia drivers by booting from the DVD and mounting the Rescue System. And I used zypper to remove the nvidia repo.

Now my cherished 42.2 appears to go through the boot procedure but stops with:

ICSNET login:      21.462006]  nouveau . . . . . bus: MM10 write of 00000000002 FAULT at 4188ac    IBUS  ]

The above is followed by two similar lines.

If press enter I get a login prompt, which works. I have access to zypper but cannot open a konsole (so I can’t cut and paste).
I used:

zypper in -f xorg-x11*

This seemed to make things worse. Everything was working fine before and I don’t really need the nvidia card. I prefer to go back the integrated intel graphics situation.

I read some documentation but am afraid of screwing up.

2

Please next time use upper and lower case characters in places where they are normally used for. Using all caps is often considered as shouting. And people you shout at are not really encouraged to help you.:frowning:

3

Sorry to take so much time in apologising, I was locked out of your entire website for a few minutes.

I found instructions for 13.2 and gave them a try:

/sbin/lspci -nnk | grep VGA -A2

That revealed two video options:

00:02:0 VGA compatible controller [0300]: Intel Corp . . . . [8086:0416] (rev 86)

Kerneldriver in use: i915

The nvidia entry says nouveau kernel driver in use.

So it seems I have to disable nouveau and ensure that the Intel takes over.

4

Is this a note book If so then you need to use bumblebee because you may have Optimus graphincs

https://en.opensuse.org/SDB:NVIDIA_Bumblebee

YIn any case you should need to remove nouveau. Check your /etc/X11/xorg.cof file and see if you have told the system to load certain drivers

5

Thanks. It’s a large laptop (details below), used for business and a bit of programming. I installed bumblebee/Optimus about two years ago but I am pretty sure it did not survive the reinstall when I jumped from 13.2 to 42.2. My aim now is to get any graphic UI and file some taxes asap. A return to the Intel graphics functionality would be fine.

I opened xorg.conf:
Under Section “Device” it says:
Identifier “Device0”
Driver “nvidia”
Vendorname “NVIDIA Corporation”

Section “Screen” says:
“Screen0”
“Device0”
“Monitor0”
DefaultDepth 24
. . . .

Section “Monitor” says
“Monitor0”
VendorName “Unknown”
ModeName “unknown”
. . . .
Option “DPMS”

After booting the screen displays six lines that include the words “nouveau”, “4188ac” and “FAULT”. Example:

nouveau 0000:01:00.0: bus: MMIO write of 00000002 FAULT at  4188ac  IBUS ]
6

Best to rename/remove the xorg.conf it will force a driver in this case NVIDIA .

You need bumblebee even if you don’t use the NVIDIA card

7

Ha ha! Pure magic. Renamed xorg.conf and immediately the screen went black and then, after a few second, recovered the graphic interface.

Now in /etc/X11/ I have several xorg.conf:
xorg.conf.install
xorg.conf.nvidia-postun
xorg.conf.nvidia-xconfig-original
xorg.conf.xorg.conf_old

I see the laptop is running cooler than before and I can open a konsole. My laptop was designed for MS Windows: it had Optimus installed and a hybrid disk drive. Converting to opensuse was not easy for me. I installed bumblebee later and Optirun was working and I tested the gyrating spheres example. But, as I said, this laptop has no particular graphic-heavy uses. The heaviest loads occur when I am working with some of my VMs (VirtualBox).

So now I should follow the 13.2 bumblebee instructions? Or are there some new ones for LEAP 42.2?
Many thanks.

8

First make sure you don’t already have it. If you upgraded it still should be there and may only need updated since it does not come on the install disk. The problem was that you removed or did not reinstall nvidia-bumblebee and the xorg.conf was trying to load it. You don’t need the NVIDIA driver with bumblebee but I believe you need at least the nouveau. In any case never install the normal NVIDIA driver on an Optimus with bumblebee you must use the bumblebee version