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Old 10-24-06, 06:58 AM   #1
neutrino1
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Default the old dual core dual gpu problem

Hi!

After reading and searching in this forum I did not find an sollution.

The first ca. 10 minutes, I may not open thunderbird, receive emails and move some windows ( starting synaptics and moving windows is another way to reproduce the problem)
Afer minute 10 the system is stable.

The system freezes completely, sometimes the mousecursor moves and one core has 100%.
ONLY with DUALCORE AND DUALCPU Mode.
with & without glx extensions activated

I reduced the system to the basic needed things:

System: Ubuntu dapper 6.06
different kernels up to 2.6.17
last nvidia stable and beta driver

Asus A8N SLI Premium
2*1gig RAM
One ATA Disc
a coice of 2 cardst out of 2 *6600GT, 1*6200TC
All unused interfaces deactivated in bios
New PSU (650W)

Bios of all components: up to date
Kernelparameters: pci=nommconf/conf1, noirqbalancer

switchich acpi and apic did not help

There is no idea left to solve the problem.

Is it possible to increade the gpu latency from 64 to bigger values? May that be an sollution?

The Systems is styble unter Windows.

ciao
neutrino1
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Old 10-24-06, 12:23 PM   #2
netllama
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Default Re: the old dual core dual gpu problem

Please generate and attach an nvidia-bug-report.log which captures this problem.

Thanks,
Lonni
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Old 10-24-06, 06:02 PM   #3
neutrino1
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Default Re: the old dual core dual gpu problem

Hi!

Here ist the bug-report.

Actually, the pci-cards returned to the system, and the silicon-sata controler is
active, but this doesn´t change the behaviour

thanks for your help
Attached Files
File Type: bz2 nvidia-bug-report.log.bz2 (30.9 KB, 111 views)
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Old 10-24-06, 06:23 PM   #4
netllama
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Default Re: the old dual core dual gpu problem

I have a few questions:
0) Does this problem persist with 1.0-9626 ?
1) Does this persist if you remove Coolbits from your xorg.conf ?
2) Have you tested with a kernel.org kernel?
3) Does this reproduce if only one display device is configured in X?


Thanks,
Lonni
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Old 10-25-06, 01:23 AM   #5
neutrino1
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Default Re: the old dual core dual gpu problem

Quote:
Originally Posted by netllama
I have a few questions:
0) Does this problem persist with 1.0-9626 ?
1) Does this persist if you remove Coolbits from your xorg.conf ?
2) Have you tested with a kernel.org kernel?
3) Does this reproduce if only one display device is configured in X?


Thanks,
Lonni
Hi!

0. The last I tried was 1.0-9625. Let's test 1.0-9626 later.
1. I added Coolbits while my experiments. I don't use it, so I will remove Coolbits
2. I tested different kernels, the last from kernel.org was linux-2.6.17.9.tar.bz2.
3. When removing one card, the system is stable. Later I will deactivate one card in xorg.conf

Note: CPU: AMD 4200 X2 -> deactivating powernowd helps, but cannot be an sollution

Thanks,
neutrino1

Last edited by neutrino1; 10-25-06 at 03:52 AM.
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Old 10-25-06, 11:13 AM   #6
netllama
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Default Re: the old dual core dual gpu problem

How are you deactivating powernowd ?
Does booting with the acpi=off kernel parameter have any impact?
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Old 10-26-06, 05:47 AM   #7
neutrino1
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Default Re: the old dual core dual gpu problem

Hi!

When deactivating Powernow in BIOS, the CPU runs with 2200Mhz.

Tonight I built an 2.6.18.1 kernel (somthing went wrong with fbdev, but Xorg looks ok.
Later I will try to reproduce the bug.

Thanks,
neutrino1
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Old 10-27-06, 05:33 AM   #8
neutrino1
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Default Re: the old dual core dual gpu problem

Hey....

Using kernel 2.6.18.1 and the last nvidia beta-driver the system is stable....

with your hints I got the splash screen back, but now, all tty's show only garbage

thanks for your help

any idea for the tty`s ?
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Old 10-31-06, 02:52 AM   #9
neutrino1
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Default Re: the old dual core dual gpu problem

Hi!

Result of my tests:

Kernel 2.6.18.1,
nvidia driver 1.0-9626,
coolbits off
multi-screen -> freezes again

when using an xorg.conf for singlescreen configuration,
the system is stable.
Downgrade to the ubuntu standard kernel 2.6.15, the system is stable too.

My result: driverproblem? chipsetproblem?

What do you think?


Thanks

neutrino1
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Old 10-31-06, 10:45 AM   #10
netllama
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Default Re: the old dual core dual gpu problem

Try booting with the irq=poll kernel parameter.
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Old 11-02-06, 02:30 AM   #11
neutrino1
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Default Re: the old dual core dual gpu problem

Hi!

idle=poll does not help :-(

I am thinking about an latency problem.

yesterday I tried to build an software-raid1 on 2 new harddisks connected to the silicon controller.

syncing discs ended with an "disc freeze" (parity error) first time.
when copying data, the system freezed again.

everyting worked well from console with deactivaded Xorg.

any ideas?

ciao

neutrino1
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Old 11-03-06, 04:09 AM   #12
neutrino1
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Default Re: the old dual core dual gpu problem

Nobody there, who can solve the problem?

Yesterday I reproduced the freeze with singlescreen xorg.conf.
heavy chipset traffic with graphic-activity ends in freezes.

Deactivating Xorg gave an stable system.

what / who is responsible for the bug?

Thanks
frascati
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