| Summary: | Reported temperature of nvidia card with nouveau driver is wrong | ||||||
|---|---|---|---|---|---|---|---|
| Product: | xorg | Reporter: | Jirka Novak <j.novak> | ||||
| Component: | Driver/nouveau | Assignee: | Nouveau Project <nouveau> | ||||
| Status: | RESOLVED MOVED | QA Contact: | Xorg Project Team <xorg-team> | ||||
| Severity: | normal | ||||||
| Priority: | medium | CC: | florczak.raf+freedesktop, pachoramos1, rhyskidd | ||||
| Version: | unspecified | ||||||
| Hardware: | x86-64 (AMD64) | ||||||
| OS: | Linux (All) | ||||||
| Whiteboard: | |||||||
| i915 platform: | i915 features: | ||||||
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Thanks for the bug report Jirka, It would be helpful if you could download and build a nouveau-related debug toolkit, envytools [0], and run the following commands (inside the nva/ subfolder): $ ./nvapeek 0x020460 $ ./nvapeek 0x020400 It would also be helpful to see a copy of your GPU's VBIOS attached here. This can be produced by running the below command: $ cat /sys/kernel/debug/dri/0/vbios.rom > vbios.rom [0] https://github.com/envytools/envytools Perhaps when it's runtime-suspended, the readings return all 1's, and we report 511 (0x1ff). Or some variation thereof. Jirka - if you boot with nouveau.runpm=0, I suspect the temperature will be fine -- good to check though. Created attachment 140773 [details] vbios.rom Hi, > It would be helpful if you could download and build a nouveau-related debug > toolkit, envytools [0], and run the following commands (inside the nva/ > subfolder): > > $ ./nvapeek 0x020460 > > $ ./nvapeek 0x020400 Output is there, but I see different output for subsequent calls: # nvapeek 0x020460 00020460: 20003170 # nvapeek 0x020460 00020460: 20003180 # nvapeek 0x020460 00020460: 200031a8 # nvapeek 0x020460 00020460: 200031a0 # nvapeek 0x020460 00020460: 200031e8 # nvapeek 0x020400 00020400: 00000030 # nvapeek 0x020400 00020400: 00000031 # nvapeek 0x020400 00020400: 00000031 # nvapeek 0x020400 00020400: 00000031 # nvapeek 0x020400 00020400: 00000031 # nvapeek 0x020400 00020400: 00000032 > It would also be helpful to see a copy of your GPU's VBIOS attached here. This > can be produced by running the below command: > > $ cat /sys/kernel/debug/dri/0/vbios.rom > vbios.rom File is attached. Best regards, Jirka Novak Hi,
> Perhaps when it's runtime-suspended, the readings return all 1's, and we report
> 511 (0x1ff). Or some variation thereof.
>
> Jirka - if you boot with nouveau.runpm=0, I suspect the temperature will be
> fine -- good to check though.
yes, you are correct. It then returns 49-50 degrees.
Best regards,
Jirka Novak
I have the same issue with kernel 4.19.30 still this is a runtime suspend issue. While the GPU is suspended the temperature reading fails, but we don't actually check for that, so we return the error value (-1 & 0x1ff = 511). I think I had a patch for that somewhere, let me see. Will this bug interact with Lyude's recent patch, "drm/nouveau/i2c: Disable i2c bus access after ->fini()"? no. This was mainly for displays afaik and we read out the temperature through MMIO. -- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/445. |
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Hello, I use Dell Precision 3530 with NVIDIA Corporation GP107GLM [Quadro P600 Mobile] (rev a1). I use Fedora Core 28 with 4.17.6 x86_64 kernel. I found that sensors tool shows wrong temperature: $ sensors 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) Temperature is obviously wrong. I tried to troubleshoot it on sensors side and it looks that sensors tool receives this wrong value from driver. I made one more observation - right after suspend/wakeup the value is completely different: $ sensors 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) $ sensors nouveau-pci-0100 Adapter: PCI adapter temp1: +43.0°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) $ sensors 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) I can provide more information when required.