2007-02-24 13:08:58

by Chris Rankin

[permalink] [raw]
Subject: Kernel warning from Matrox Framebuffer in 2.6.20.1

Hi,

I have just booted 2.6.20.1 on my Pentium 3 machine, which has a G400 MAX graphics card. This
machine uses the Matrox framebuffer and TV-OUT modules, and I have found these warnings in the
kernel log:

**WARNING** I2C adapter driver [DDC:fb0 #0] forgot to specify physical device; fix it!
**WARNING** I2C adapter driver [DDC:fb0 #1] forgot to specify physical device; fix it!
**WARNING** I2C adapter driver [MAVEN:fb0] forgot to specify physical device; fix it!

The relevant kernel modules seem to be:

matroxfb_maven 13228 0
i2c_matroxfb 4064 0
i2c_algo_bit 6312 1 i2c_matroxfb

Cheers,
Chris




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2007-02-24 17:23:36

by Ondrej Zary

[permalink] [raw]
Subject: Re: Kernel warning from Matrox Framebuffer in 2.6.20.1

On Saturday 24 February 2007 14:08, Chris Rankin wrote:
> Hi,
>
> I have just booted 2.6.20.1 on my Pentium 3 machine, which has a G400 MAX
> graphics card. This machine uses the Matrox framebuffer and TV-OUT modules,
> and I have found these warnings in the kernel log:
>
> **WARNING** I2C adapter driver [DDC:fb0 #0] forgot to specify physical
> device; fix it! **WARNING** I2C adapter driver [DDC:fb0 #1] forgot to
> specify physical device; fix it! **WARNING** I2C adapter driver [MAVEN:fb0]
> forgot to specify physical device; fix it!

I'm seeing something like that since installing 2.6.20.1 yesterday:

matroxfb: Matrox Mystique (PCI) detected
PInS memtype = 0
matroxfb: MTRR's turned on
matroxfb: 1024x768x8bpp (virtual: 1024x4096)
matroxfb: framebuffer at 0xE1000000, mapped to 0xcc880000, size 4194304
Console: switching to colour frame buffer device 128x48
fb0: MATROX frame buffer device
**WARNING** I2C adapter driver [DDC:fb0 #0] forgot to specify physical device;
fix it!

> The relevant kernel modules seem to be:
>
> matroxfb_maven 13228 0
> i2c_matroxfb 4064 0
> i2c_algo_bit 6312 1 i2c_matroxfb
>
> Cheers,
> Chris

--
Ondrej Zary

2007-02-25 00:32:14

by Petr Vandrovec

[permalink] [raw]
Subject: Re: Kernel warning from Matrox Framebuffer in 2.6.20.1

Ondrej Zary wrote:
> On Saturday 24 February 2007 14:08, Chris Rankin wrote:
>> Hi,
>>
>> I have just booted 2.6.20.1 on my Pentium 3 machine, which has a G400 MAX
>> graphics card. This machine uses the Matrox framebuffer and TV-OUT modules,
>> and I have found these warnings in the kernel log:
>>
>> **WARNING** I2C adapter driver [DDC:fb0 #0] forgot to specify physical
>> device; fix it! **WARNING** I2C adapter driver [DDC:fb0 #1] forgot to
>> specify physical device; fix it! **WARNING** I2C adapter driver [MAVEN:fb0]
>> forgot to specify physical device; fix it!
>
> I'm seeing something like that since installing 2.6.20.1 yesterday:
>
> matroxfb: Matrox Mystique (PCI) detected
> PInS memtype = 0
> matroxfb: MTRR's turned on
> matroxfb: 1024x768x8bpp (virtual: 1024x4096)
> matroxfb: framebuffer at 0xE1000000, mapped to 0xcc880000, size 4194304
> Console: switching to colour frame buffer device 128x48
> fb0: MATROX frame buffer device
> **WARNING** I2C adapter driver [DDC:fb0 #0] forgot to specify physical device;
> fix it!

Can you try current git tree? I believe that it is already fixed by
Jean Delvare checkin from Feb 13th (thanks Jean!)
Petr