I'm trying to build a second Blue Iris viewer using a Raspberry Pi and this display/case from UPerfect.
The first one I built using a Raspberry Pi 3+ and this case, and it works fine without the fan running, so I cut the power supply wires to the case fan.
This second build has a Raspberry Pi 4 inside (because that's the unit I had from a different, abandoned project), and I cut off the fan power supply in the UPerfect case before I realized it was overheating Image may be NSFW.
Clik here to view.
, and now this is happening:
https://www.youtube.com/watch?v=r13_0wUx29I
If I reboot it, it displays properly, and if I monitor the temperature via vcgencmd measure_temp, it starts at around 60 ºC and takes about 3-4 minutes to climb up to ~70 ºC, at which point the display starts to flicker. This is very repeatable. Temperature will continue to rise up to about 75 ºC and stay there, at which point the display flickers so much that's it's pretty much unusable.
Is there a way to set the RPi 4 to throttle at a lower temperature?
top shows:
The first one I built using a Raspberry Pi 3+ and this case, and it works fine without the fan running, so I cut the power supply wires to the case fan.
This second build has a Raspberry Pi 4 inside (because that's the unit I had from a different, abandoned project), and I cut off the fan power supply in the UPerfect case before I realized it was overheating Image may be NSFW.
Clik here to view.
, and now this is happening:https://www.youtube.com/watch?v=r13_0wUx29I
If I reboot it, it displays properly, and if I monitor the temperature via vcgencmd measure_temp, it starts at around 60 ºC and takes about 3-4 minutes to climb up to ~70 ºC, at which point the display starts to flicker. This is very repeatable. Temperature will continue to rise up to about 75 ºC and stay there, at which point the display flickers so much that's it's pretty much unusable.
Is there a way to set the RPi 4 to throttle at a lower temperature?
top shows:
Code:
top - 14:07:53 up 9 min, 3 users, load average: 0.80, 0.77, 0.49Tasks: 203 total, 1 running, 202 sleeping, 0 stopped, 0 zombie%Cpu(s): 16.2 us, 2.3 sy, 0.0 ni, 81.4 id, 0.0 wa, 0.0 hi, 0.2 si, 0.0 stMiB Mem : 7812.3 total, 6277.4 free, 571.1 used, 963.8 buff/cacheMiB Swap: 100.0 total, 100.0 free, 0.0 used. 6999.4 avail Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1144 PulseBI 20 0 171.6g 217140 122936 S 40.2 2.7 3:42.13 chromium-browse 554 root 20 0 52736 37596 20264 S 14.6 0.5 1:24.19 vncserver-x11-c 611 root 20 0 450448 90324 59220 S 11.6 1.1 1:11.76 Xorg 1042 PulseBI 20 0 32.5g 125812 91368 S 8.3 1.6 0:48.47 chromium-browse 796 PulseBI 20 0 32.6g 220804 155132 S 2.0 2.8 0:16.66 chromium-browse 381 root 0 -20 0 0 0 I 1.0 0.0 0:03.94 kworker/u9:1-brcmf_wq/mmc1:0001:1 37 root 20 0 0 0 0 I 0.7 0.0 0:01.69 kworker/0:2-events 15 root 20 0 0 0 0 I 0.3 0.0 0:01.18 rcu_preempt 264 root -2 0 0 0 0 S 0.3 0.0 0:00.53 v3d_tfu 629 root 20 0 19816 14052 13400 S 0.3 0.2 0:02.71 vncagent 937 PulseBI 20 0 310676 5776 5056 S 0.3 0.1 0:00.05 gvfs-afc-volume 1046 PulseBI 20 0 32.3g 97660 84136 S 0.3 1.2 0:03.32 chromium-browse 1620 PulseBI 20 0 10100 3548 2784 R 0.3 0.0 0:00.15 top Statistics: Posted by TheWaterbug — Mon Sep 16, 2024 9:09 pm
