RPi5 running hot

mvrlogins

I have a new 1GB RPi5 running the latest version of MM, installed using @sdetweil 's scripts

It is running very hot at 84C

I don’t have any cooling hardware and it is not installed in a case, but airflow around is not restricted at all.

The only additional program I have running is go2rtc to stream an RTSP camera feed to an iFrame, but that is on a seperate page (using MMM-pages) that is only called on demand

I have ordered a cooler, but wanted to see if there was something amiss.

pi@MMPi5:~ $ top -b -n 1 | head -20
top - 12:40:10 up  5:33,  4 users,  load average: 8.30, 8.04, 7.71
Tasks: 232 total,   3 running, 229 sleeping,   0 stopped,   0 zombie
%Cpu(s): 77.8 us, 11.1 sy,  0.0 ni, 11.1 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st 
MiB Mem :   2006.8 total,    160.7 free,   1137.2 used,    870.8 buff/cache     
MiB Swap:   2006.0 total,   1966.0 free,     40.0 used.    869.5 avail Mem 

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
 450392 pi        20   0 1143840  56256  41376 R 100.0   2.7   0:00.33 MainThr+
   2582 pi        20   0   32.6g 160848 132096 S  72.7   7.8 234:05.79 electron
   2685 pi        20   0 1407.7g 169824 113552 R  45.5   8.3 103:34.34 electron
 449306 pi        20   0 1415.9g 185040 120112 S  45.5   9.0   0:23.18 electron
   3153 pi        20   0 1407.8g 162912 101904 S  27.3   7.9 102:32.93 electron
   1334 pi        20   0  527936 116960  85824 S  18.2   5.7  72:06.61 labwc
   1525 pi        20   0 1408.1g 269904 160912 S  18.2  13.1  16:37.33 electron
   2658 pi        20   0   32.3g  88832  71040 S  18.2   4.3   9:05.59 electron
   3253 pi        20   0   32.5g  67680  53712 S   9.1   3.3  17:05.44 electron
  40449 pi        20   0 1245936  38560     16 S   9.1   1.9  19:24.04 go2rtc
 450399 pi        20   0   10368   5152   2800 R   9.1   0.3   0:00.02 top
      1 root      20   0   25712  13968   9424 S   0.0   0.7   0:01.83 systemd
      2 root      20   0       0      0      0 S   0.0   0.0   0:00.04 kthreadd
pi@MMPi5:~ $

mvrlogins

The list of running modules -

The EmbendURL modules only display on demand on a seperate page

pi@MMPi5:~ $ curl -s http://localhost:8080/api/module | python3 -c "import sys,json; [print(m['identifier'], '-', m['name']) for m in json.load(sys.stdin)['data']]"
module_0_alert - alert
module_1_MMM-Remote-Control - MMM-Remote-Control
module_2_MMM-pages - MMM-pages
module_3_MMM-EmbedURL - MMM-EmbedURL
module_4_MMM-EmbedURL - MMM-EmbedURL
module_5_calendar - calendar
module_6_iFrame - iFrame
module_7_clock - clock
module_8_MMM-Worldclock - MMM-Worldclock
module_9_MMM-OpenWeatherForecast - MMM-OpenWeatherForecast
module_10_MMM-EmbedURL - MMM-EmbedURL
module_11_iFrame - iFrame
module_12_newsfeed - newsfeed
module_13_newsfeed - newsfeed
pi@MMPi5:~ $

S374n

My Pi5 has a on chip fan and it was running 75 inside the box attached to the monitor in the back.
I added external little fab on top of my enclosure to extract the hot air and it dropped the temp to 60.
Moved it 1 inch away from the monitor back panel and the temp now is 55 all the time with screen on and 44 during the night when the screen off.

videogame95

You shouldn’t run any raspberry pi 5 without cooling fan on top it will break if run it without fan installed
Buy fan

mvrlogins

I have ordered a fan/cooler

But anyone have any insight into whethere the processes I listed are over running?

sdetweil

@mvrlogins if you stop MagicMirror what is the temp?

mvrlogins

@sdetweil said:

@mvrlogins if you stop MagicMirror what is the temp?

It drops to 50C in a few min

sdetweil

@mvrlogins said:

The EmbendURL modules only display on demand on a seperate page

what do you mean by separate page?
MagicMirror does not have pages, it has logical groupings of content, some shown together, others hidden (this is MMM-pages, MMM-Carousel, MMM-ModulesGroupsRotation, MMM-ProfileSwitcher, etc)
so even if not shown, some content could still be generated (Embed/iFrame) , they don’t know they are hidden

if you run ps -ef you can see the commandline used to launch each process.

you say you have a 1 gig pi5, but mem reports as 2gig.

but you are over physical, and swapping. which takes cycles.

I would suggest, disabling module at a time
add

disabled:true,

after the module:name… line

and rerun to see what the effect is. what are the embed modules showing? active content, graphs, images??

mvrlogins

@sdetweil said:

@mvrlogins said:

The EmbendURL modules only display on demand on a seperate page

what do you mean by separate page?
MagicMirror does not have pages, it has logical groupings of content, some shown together, others hidden (this is MMM-pages, MMM-Carousel, MMM-ModulesGroupsRotation, MMM-ProfileSwitcher, etc)
so even if not shown, some content could still be generated (Embed/iFrame) , they don’t know they are hidden

if you run ps -ef you can see the commandline used to launch each process.

you say you have a 1 gig pi5, but mem reports as 2gig.

but you are over physical, and swapping. which takes cycles.

I would suggest, disabling module at a time
add
disabled:true, 
after the module:name… line

and rerun to see what the effect is. what are the embed modules showing? active content, graphs, images??

The EmbedURL module shows a WebRTC video. The page is hiddent and called on demand (not regular rotation).

I thought that the module would not continue to stream the video when hidden. I guess this is the problem, since it does continue

mvrlogins

Instead of using pages to hide the module, I guess I could use MMM-Remote-Control to enable/disable the EmbedURL module? That would stop the streaming?

sdetweil

@mvrlogins i think runtime enable/disable just changes its visibility. there are no apis to add/remove modules from the DOM.
the disable at startup skips adding it as a runtime module… which is completely different

mvrlogins

@sdetweil

Thanks

I’ll have to find another way to stop the streaming while the page is hidden