07-14-2024, 09:50 AM
Thanks @simonb.
Re. playing the music files from a USB stick: I've not tried that yet but will do so and report on whether there's any change.
Re. the PCi express headings, I may have misunderstood (sorry, complete Pi novice) but running the command you suggest returns the following only, which doesn't seem to say a lot:
rob@moode:~ $ /boot/firmware/config.txt
/boot/firmware/config.txt: line 6: [cm4]: command not found
/boot/firmware/config.txt: line 8: [pi4]: command not found
/boot/firmware/config.txt: line 9: hdmi_force_hotplug:0=1: command not found
/boot/firmware/config.txt: line 10: hdmi_force_hotplug:1=1: command not found
/boot/firmware/config.txt: line 12: [all]: command not found
Re. iostat command, most of the time the results I get when playing a FLAC file look like the same as yours, but one line did return quite different results (and seemed to coincide with an audible glitch):
07/14/2024 10:42:25 AM
avg-cpu: %user %nice %system %iowait %steal %idle
0.00 0.00 1.00 0.25 0.00 98.75
r/s rkB/s rrqm/s %rrqm r_await rareq-sz Device
3.00 384.00 0.00 0.00 4.33 128.00 mmcblk0
w/s wkB/s wrqm/s %wrqm w_await wareq-sz Device
3.00 20.00 2.00 40.00 4.00 6.67 mmcblk0
d/s dkB/s drqm/s %drqm d_await dareq-sz Device
0.00 0.00 0.00 0.00 0.00 0.00 mmcblk0
f/s f_await aqu-sz %util Device
2.00 1.00 0.03 2.00 mmcblk0
Re. playing the music files from a USB stick: I've not tried that yet but will do so and report on whether there's any change.
Re. the PCi express headings, I may have misunderstood (sorry, complete Pi novice) but running the command you suggest returns the following only, which doesn't seem to say a lot:
rob@moode:~ $ /boot/firmware/config.txt
/boot/firmware/config.txt: line 6: [cm4]: command not found
/boot/firmware/config.txt: line 8: [pi4]: command not found
/boot/firmware/config.txt: line 9: hdmi_force_hotplug:0=1: command not found
/boot/firmware/config.txt: line 10: hdmi_force_hotplug:1=1: command not found
/boot/firmware/config.txt: line 12: [all]: command not found
Re. iostat command, most of the time the results I get when playing a FLAC file look like the same as yours, but one line did return quite different results (and seemed to coincide with an audible glitch):
07/14/2024 10:42:25 AM
avg-cpu: %user %nice %system %iowait %steal %idle
0.00 0.00 1.00 0.25 0.00 98.75
r/s rkB/s rrqm/s %rrqm r_await rareq-sz Device
3.00 384.00 0.00 0.00 4.33 128.00 mmcblk0
w/s wkB/s wrqm/s %wrqm w_await wareq-sz Device
3.00 20.00 2.00 40.00 4.00 6.67 mmcblk0
d/s dkB/s drqm/s %drqm d_await dareq-sz Device
0.00 0.00 0.00 0.00 0.00 0.00 mmcblk0
f/s f_await aqu-sz %util Device
2.00 1.00 0.03 2.00 mmcblk0