https://www.thinkwiki.org/w/api.php?action=feedcontributions&feedformat=atom&user=212.144.121.1ThinkWiki - User contributions [en]2026-09-11T02:43:42ZUser contributionsMediaWiki 1.31.12https://www.thinkwiki.org/w/index.php?title=Problem_with_lm-sensors&diff=1196Problem with lm-sensors2004-09-26T22:00:06Z<p>212.144.121.1: </p>
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<div>Information about the problem of lm_sensors corrupting the eeprom of Thinkpads.<br />
<br />
==Problem description==<br />
<br />
lm_sensors prior to 2.6.5 caused the corruption of the Thinkpads eeprom, leading to the Thinkpad not being bootable anymore.<br />
The common error on the affected models was:<br />
POST ERROR 188 - EEPROM CRC ERROR<br />
or for the Thinkpad 240:<br />
0188: Invalid RFID Serialization Area<br />
<br />
Also affected is glms (GNOME LM-Sensors)<br />
<br />
==Affected Models==<br />
<br />
*Thinkpad 570E<br />
*Thinkpad 600E, 600X<br />
*Thinkpad 770X, 770Z<br />
*Thinkpad 240<br />
*Thinkpad X20<br />
*probably more<br />
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==Affected Operating Systems==<br />
<br />
*Linux, all flavours<br />
<br />
==Status==<br />
<br />
It is known that the corruption was caused during the execution of sensors-detect and it is also known that its the specific Atmel 24RF08 eeprom, that is affected.<br />
<br />
Hence the developers of lm_sensors included a Thinkpad detection routine into the software starting from 2.6.5 and published [http://www2.lm-sensors.nu/~lm78/cvs/browse.cgi/lm_sensors2/README.thinkpad this readme]. If you try to run sensors-detect on a Thinkpad it just quits with an error message, protecting your Thinkpads eeprom.<br />
<br />
However, even though even the inner workings that cause the eeprom to get corrupted seem to be known, it seems impossible to avoid it and make lm_sensors work at the same time.<br />
<br />
Currently it is unclear, if newer Thinkpad models are affected or not.<br />
<br />
==Solutions==<br />
<br />
On more recent models, try to use ACPI to gather information about processor temperature and the like. It is the future anyway.<br />
<br />
On older models '''avoid lm_sensors and related software!'''<br />
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[[Category:240]] [[Category:240X]] [[Category:570]] [[Category:570E]] [[Category:600]] [[Category:600E]] [[Category:600X]] [[Category:770X]] [[Category:770Z]] [[Category:X20]]</div>212.144.121.1