nForce error on ASUS board disables nouveau graphics fo NVIDIA

[rasos]

With an "Error probing SMB2" the nouveau nvidia current does not work on ASUS M3N78-VM with a 2.6.32-22 kernel. It had worked with ubuntu 9.10.
At boot we get:
nForce2_smbus : 0000:00:01.1 Error probing SMB2
Even without KMS and using a traditional xorg.conf for nvidia, the nvidia driver setting tool does not work.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-22-generic 2.6.32-22.36
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-22.36-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic i686
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: NVidia [HDA NVidia], device 0: VT1708B Analog [VT1708B Analog]
   Subdevices: 2/2
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: alton 1872 F.... xfce4-mixer-plu
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'NVidia'/'HDA NVidia at 0xf8f78000 irq 21'
   Mixer name : 'Nvidia MCP78 HDMI'
   Components : 'HDA:1106e721,10438345,00100100 HDA:10de0002,10de0101,00100000'
   Controls : 38
   Simple ctrls : 19
Date: Sat Jun 19 23:35:02 2010
HibernationDevice: RESUME=UUID=fafbb1b5-7dee-443e-8198-18a38564bd63
InstallationMedia: Mythbuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427.1)
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
MachineType: System manufacturer System Product Name
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=UUID=bd0e558a-7f6c-4df7-aa6e-2affaf5b6006 ro quiet splash
ProcEnviron:
 LANG=de_AT.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34
RfKill:

SourcePackage: linux
dmi.bios.date: 07/28/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1307
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M3N78-VM
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1307:bd07/28/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM3N78-VM:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[rasos (rasos)]

The problem has been also reported elsewhere, however it was considered a minor issue. It was also said that the problem was solved in kernel 2.6.32-19.28, but this does not seem to be true.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/440470/comments/66
I tried the workaround as well, adding "acpi_enforce_resources=lax" as a linux kernel parameter (via grub2), which only suppresses the message.
Still the same boot delay and still no working nouveau.

[Jeremy Foshee (jeremyfoshee)]

Hi rasos,

If you could also please test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

    [This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[rasos (rasos)]

Tried with latest development kernel 2.6.35-999: Yes, the "Error probing SMB2" disappeared on the ASUS M3N78-VM.

cat syslog | grep 'nForce2'
Jun 21 23:08:27 media kernel: [ 0.488975] cpufreq-nforce2: No nForce2 chipset.
Jun 21 23:08:27 media kernel: [ 15.781071] i2c i2c-0: nForce2 SMBus adapter at 0x600
Jun 21 23:08:27 media kernel: [ 15.781080] ACPI: resource nForce2_smbus [io 0x0700-0x073f] conflicts with ACPI region SM00 [??? 0x00000700-0x0000073f flags 0x30]

However, I was not able to get NVIDIA running yet.
So waiting for the next kernel made available with usual lucid update.

[rasos (rasos)]

nvidia driver problem solved: it did not have enough memory.

I always got
"Failed to initialize the NVIDIA graphics device PCI:2:0:0. " with falling back to low resolution, no matter which xorg.conf file I used.

vmalloc assigned only 100 mb by default, after updating to kernel 2.6.32-24.

QUICK FIX:
adding vmalloc=192M at the kernel start line

sudo nano /etc/default/grub
add line
GRUB_CMDLINE_LINUX="acpi_enforce_resources=lax vmalloc=192M"
and run
sudo update-grub

This solved all my nvidia problems I had when updating lucid lynx!

credits to:
http://www.pclinuxos.com/forum/index.php?topic=71334.0