keyvin
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*ERROR* Resetting GPU when temperature under 37C

Fri Sep 27, 2019 3:49 am

Hey all, I've been playing with active cooling for my pi 4 2gb. I've found that at exactly 36C I start getting visual pauses and the following in dmesg:

Code: Select all

[ 1490.280240] [drm:v3d_reset [v3d]] *ERROR* Resetting GPU.
Is this a setting I need to change, or is something wrong with my pi? This happens when I use a fan with a completely external power source, as well as a fan powered off the GPIO headers.

dp11
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Re: *ERROR* Resetting GPU when temperature under 37C

Fri Sep 27, 2019 4:17 am

Are you overclocking?

keyvin
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Re: *ERROR* Resetting GPU when temperature under 37C

Fri Sep 27, 2019 4:51 am

I haven't run anything or configured anything to overclock. I've already made a new SD card with buster. Same behavior - below 37C and I start getting pauses and that message in dmesg.

jamesh
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Re: *ERROR* Resetting GPU when temperature under 37C

Fri Sep 27, 2019 7:06 am

Never heard of that before! Will pass on to hw team.
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keyvin
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Re: *ERROR* Resetting GPU when temperature under 37C

Wed Oct 02, 2019 12:38 am

Did you get any info back? I don't want to do a return/exchange (cross shipping) unless people think it's a hardware problem, but I'm running out of time on that. Don't want to get stuck with a defective unit :(.

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Imperf3kt
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Re: *ERROR* Resetting GPU when temperature under 37C

Wed Oct 02, 2019 6:38 am

While it may not be very useful to you, I can say I doubt it's a hardware issue.
My reason for stating this is because I've used oversized heatsinks and fans (mostly because I wanted to see how 'cool' I could make it) on my own Pi4b and even when running below 30°C under high CPU use, I've never experienced what you describe.
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jamesh
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Re: *ERROR* Resetting GPU when temperature under 37C

Wed Oct 02, 2019 9:19 am

Imperf3kt wrote:
Wed Oct 02, 2019 6:38 am
While it may not be very useful to you, I can say I doubt it's a hardware issue.
My reason for stating this is because I've used oversized heatsinks and fans (mostly because I wanted to see how 'cool' I could make it) on my own Pi4b and even when running below 30°C under high CPU use, I've never experienced what you describe.
Doesn't that imply a HW problem on the particular board? Although not sure why specifically these symptoms - they are rather bizarre.
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jamesh
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Re: *ERROR* Resetting GPU when temperature under 37C

Wed Oct 02, 2019 2:01 pm

jcyr wrote:
Wed Oct 02, 2019 1:31 pm
jamesh wrote:
Wed Oct 02, 2019 9:19 am
Imperf3kt wrote:
Wed Oct 02, 2019 6:38 am
While it may not be very useful to you, I can say I doubt it's a hardware issue.
My reason for stating this is because I've used oversized heatsinks and fans (mostly because I wanted to see how 'cool' I could make it) on my own Pi4b and even when running below 30°C under high CPU use, I've never experienced what you describe.
Doesn't that imply a HW problem on the particular board? Although not sure why specifically these symptoms - they are rather bizarre.
Bad solder joint exacerbated due to physical contraction at lower temperature? Weird though... How would it ever boot? 37C is way above normal room temp.
That would be my suspicion.
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bjtheone
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Re: *ERROR* Resetting GPU when temperature under 37C

Wed Oct 02, 2019 6:50 pm

jcyr wrote:
Wed Oct 02, 2019 1:31 pm
jamesh wrote:
Wed Oct 02, 2019 9:19 am
Imperf3kt wrote:
Wed Oct 02, 2019 6:38 am
While it may not be very useful to you, I can say I doubt it's a hardware issue.
My reason for stating this is because I've used oversized heatsinks and fans (mostly because I wanted to see how 'cool' I could make it) on my own Pi4b and even when running below 30°C under high CPU use, I've never experienced what you describe.
Doesn't that imply a HW problem on the particular board? Although not sure why specifically these symptoms - they are rather bizarre.
Bad solder joint exacerbated due to physical contraction at lower temperature? Weird though... How would it ever boot? 37C is way above normal room temp.
I agree with this. I can't see how it would ever boot successfully. I have had hardware go bad such that it would be flaky/intermittent, but then be ok once it came up to temperature and been able to trace the issue down to cracked solder joints and in some cases bad wirebonding inside a chip package. However, if one assumes the Pi does get turned off, and hence cools down such that the issue would manifest, how does it successfully startup. I assume the GPU is fairly fundamental to a successful startup.

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Imperf3kt
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Re: *ERROR* Resetting GPU when temperature under 37C

Wed Oct 02, 2019 7:43 pm

jamesh wrote:
Wed Oct 02, 2019 9:19 am
Imperf3kt wrote:
Wed Oct 02, 2019 6:38 am
While it may not be very useful to you, I can say I doubt it's a hardware issue.
My reason for stating this is because I've used oversized heatsinks and fans (mostly because I wanted to see how 'cool' I could make it) on my own Pi4b and even when running below 30°C under high CPU use, I've never experienced what you describe.
Doesn't that imply a HW problem on the particular board? Although not sure why specifically these symptoms - they are rather bizarre.
Woops, I had meant not a hardware fault with the Pi4 itself.
The one in OPs possession does sound like it has a defect.
55:55:44:44:4C
52:4C:52:42:41

keyvin
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Re: *ERROR* Resetting GPU when temperature under 37C

Wed Oct 02, 2019 8:16 pm

Thank you guys for the responses. I'll do a return/exchange.

W. H. Heydt
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Re: *ERROR* Resetting GPU when temperature under 37C

Thu Oct 03, 2019 4:02 am

jcyr wrote:
Wed Oct 02, 2019 1:31 pm
37C is way above normal room temp.
Not in all places at all times. One doesn't even need to invoke Death Valley to get conditions well over 37'C.

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Imperf3kt
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Re: *ERROR* Resetting GPU when temperature under 37C

Thu Oct 03, 2019 4:39 am

W. H. Heydt wrote:
Thu Oct 03, 2019 4:02 am
jcyr wrote:
Wed Oct 02, 2019 1:31 pm
37C is way above normal room temp.
Not in all places at all times. One doesn't even need to invoke Death Valley to get conditions well over 37'C.
This is very true.
Where I am, it's only a month out of winter and today is already 30°C, tomorrow is predicted to reach 33°C
Not looking forward to summer this year... Last year it reached 47°C
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