jamesh wrote: ↑
Mon Jul 01, 2019 8:40 am
martinrowan wrote: ↑
Mon Jul 01, 2019 8:04 am
Again, depends on definition of idle. Booted to console? Booted to desktop? Got any background task runnings? Using 4kp60?
Not that I have specific figures, but could generate some.
Per my blog post
, my testing method was to boot both a Pi 3 and a Pi 4 to a Desktop, tested with and without 4k enabled. Nothing running in the background (except rpi-monitor), load average near zero.
4kp30 or 4kp60? They have different clocks and therefor different heat loads. tvservice -s will indicate the specific speed.
Sorry, I should have been clearer, the monitor isn't a 4k display, it's a 3440x1440 display. I tested with the config for 4k enabled vs commented out.
Output of tvservice -s is:
Code: Select all
state 0xa [HDMI CUSTOM RGB full unknown AR], 3440x1440 @ 49.00Hz, progressive
Being blunt, either the power draw and therefore heat generated by the Pi 4 is above the expected norm, or the official Raspberry Pi 4 case is unfit for the intended purpose since thermal limits are hit even when idle. Hopefully, it's the former and something which can be addressed in software.