Description of problem: When I use sensors tool or any other tool for showing temperature of system components, I see obviously wrong temperature for my nvidia card controlled by nouveau driver: nouveau-pci-0100 Adapter: PCI adapter temp1: +511.0°C (high = +95.0°C, hyst = +3.0°C) (crit = +105.0°C, hyst = +5.0°C) (emerg = +135.0°C, hyst = +5.0°C) My guess is that temperature is multiplied by 10. Version-Release number of selected component (if applicable): Linux p3530 4.17.3-200.fc28.x86_64 #1 SMP Tue Jun 26 14:17:07 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux lm_sensors-3.4.0-13.fc28.x86_64 lm_sensors-libs-3.4.0-13.fc28.x86_64 How reproducible: During system operation. Steps to Reproduce: 1. Run the system Actual results: nouveau-pci-0100 Adapter: PCI adapter temp1: +511.0°C (high = +95.0°C, hyst = +3.0°C) (crit = +105.0°C, hyst = +5.0°C) (emerg = +135.0°C, hyst = +5.0°C) Expected results: Probably +51.0 or +51.1 in place of +511.0 Additional info: My HW is: Product Name: Precision 3530 Vendor: Dell Inc. BIOS Version: 1.2.5 System ID: 0x0820 Service Tag: 7Z694Q2
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Can you still reproduce it? If so, let's determine if this is a problem on the lm_sensors side or the kernel side. What is the output of the following, when the reported temperature is wrong? grep . $(dirname $(grep -l nouveau /sys/class/hwmon/*/name))/temp*
Sorry I missed your comment. In meantime I switched whole nouveau off as it was not able suspend/resume on latest kernels in FC30. Before I made it (mid of this year), I checked temperature and it was wrong after resume on 5.1.11-300.fc30.x86_64. Now I switched to intel GPU therefore I can't validate it again. Best regards, Jirka Novak
Ok. Let's close the bug for now. Note however that this is most likely a problem on the driver side.