How to monitor the GPU temperature?

[that guy]

Well, I guess I'll try your patch after the rebase or wait for 2.6.36 before I take another look into it. Thanks for the info, it's much appreciated.

[whizse]

Any idea how to monitor the temperature of a RV570 (Asus EAX 1950 Pro)? I've had a look through the logs, but can't seem to find anything.

http://pastebin.com/vUx352Nc

[agd5f]

Any idea how to monitor the temperature of a RV570 (Asus EAX 1950 Pro)? I've had a look through the logs, but can't seem to find anything.

http://pastebin.com/vUx352Nc

For pre-rv6xx cards, assuming your card has a thermal sensor, grab a 2.6.35rc kernel and it should automatically load the hwmon driver for the i2c thermal chip used on your card. The temp info can be accessed via lm_sensors tools or via sysfs /sys/class/hwmon*.

[whizse]

Hmm, I'm not getting much of a difference on 2.6.35-rc3, can't find anything in the logs, no new modules are getting loaded, and there's nothing new in /sys/class/hwmon/

I guess this card doesn't have a sensor?

http://pastebin.com/njeTvyyv

[agd5f]

Hmm, I'm not getting much of a difference on 2.6.35-rc3, can't find anything in the logs, no new modules are getting loaded, and there's nothing new in /sys/class/hwmon/

I guess this card doesn't have a sensor?

http://pastebin.com/njeTvyyv

It doesn't appear to. It will print in the log what thermal chip is on board if there is one.

[whizse]

I had a chance to try the same card on Windows, and it does have a thermal sensor (two in fact!). The application Everest reported them as National LM63 and Valterra VT1165 (ATI-I2C 4Ch, 70h).

Is there anything else I can do to help get this working?

[monraaf]

Do you have the lm63 driver loaded?

[whizse]

Do you have the lm63 driver loaded?

Yes, no difference with our without having it loaded.


Not sure if this output can be helpful?

# sensors-detect
[...]
Next adapter: Radeon i2c hw bus DVI (i2c-0)
Do you want to scan it? (YES/no/selectively): YES
Client found at address 0x50
Probing for `Analog Devices ADM1033'...                     No
Probing for `Analog Devices ADM1034'...                     No
Probing for `SPD EEPROM'...                                 No
Probing for `EDID EEPROM'...                                Yes
    (confidence 8, not a hardware monitoring chip)

Next adapter: Radeon i2c hw bus DVI (i2c-1)
Do you want to scan it? (YES/no/selectively): YES

# i2cdetect 0
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-0.
I will probe address range 0x03-0x77.
Continue? [Y/n] Y
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- 37 -- -- 3a -- -- -- -- -- 
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: 50 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- --

It looks like there should be three chips on that bus, but sensors-detect only finds the first one?

[agd5f]

The sensor is probably on a different i2c bus than the DDC i2c buses. If there's no thermal chip information in the vbios we don't add any additional i2c buses.

[whizse]

I see, are there any plans to add support for these other buses in the future?