@Dan_Knight is this web interface only available on the allo build or it’s it possible to use on the RPi and amd64 builds also? If so how does one enable it?
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New version 6.8 installed, and CPU Governor powersave setting bug is fixed for me (powersave now ‘takes’). Thanks!
I noticed that Swapfile size has changed from around 1/4 of the slider (don’t remember exact number) to left-most setting (number is 1). Is that as it should be?
Hi,
Yep, swapfile slider was fixed in v6.8, its automatically set to 2GB - RAM. We recommend leaving at that setting for Allo GUI.
After updating DietPi to 6.8 and Roon to the latest, I get no sound from USBridge although Benchmark DAC3 LEDs change to indicate correct word length/sample rate for different tracks. Had a hard time for the USBridge to be seen in Roon, too. I believe it was only seen when I changed CPU Governor back to On Demand (from Powersave). After that, it was also seen when CPU Governor was set to Powersave. But no sound. Also, no sound over Tidal/Shairport (although, again, DietPi can be seen in Tidal settings). I also tried an Audiolab M-DAC, over which I get distorted sound. Non-USBridge zones work as expected. I have spent two hours rebooting/changing settings. Any help will be very appreciated.
There’s an ALSA mixer issue.
Quick fix(es):
a) ssh into your USBridge
then e̶i̶t̶h̶e̶r̶:
b̶1̶)̶ a̶m̶i̶x̶e̶r̶ ̶c̶s̶e̶t̶ ̶"̶$̶{̶x̶}̶"̶ ̶1̶0̶0̶%̶
or
b2) alsamixer -c 1 , rightarrow to each vertical bar and uparrow to bring the volume to 100%
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b2) worked perfectly!
b1) did not work for me.
Got error:
root@DietPi:~# amixer cset “${x}” 100%
Wrong control identifier: “”
(something to do with the quotes? I also used non-curly quotes, but got error:
root@DietPi:~# amixer cset “${x}” 100%
Wrong control identifier:
(without anything after the semicolon)
Back to listening - thank you so much @Xekomi!
2 Likes
glad it worked !
(also, checked b1, it’s not just the quotes, it’s idiocy on my part (it does work if you nano /var/lib/dietpi/postboot.d/sparky_unmute.sh , but what’s the point, really ? 
)
Here too! Managed with my non-linux-skills and your b2 solution to fix it.
This is why i love to see ropiee working with Allo USbridge. Simple working great symplicity.
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I solved this by uninstalling alsa linux sound system 
@Magnus Are you willing to share the commands you used to do that? I now have to run putty every time I start Allo USbridge which is very annoying.
Yes, please tell us how you did it! I don’t want to have any DietPi DSP on the Roon path, the fact that in 6.8 ALSA mixer seems to be getting in the way concerns me. It’s not clear to me what drives the USBridge USB port, actually. What you said suggests ALSA plays no role there, but I thought ALSA was needed for USB audio on Linux… Shows what I know 
Figured it out, thanks @Magnus for the hint. SSHed into my USBbridge, issued the command
dietpi-software
selected the uninstall option, and there it is, select ALSA to unistall, and continue from there. Actually, I uninstalled a lot more that I don’t care for (MPD, SqueezeLite, Shairport, …). Also uninstalled all the Web server stuff, as I cannot use the Web GUI in my more secure, strong password setup. Maybe it is placebo effect, but it sounds cleaner now than since the 6.8 upgrade. ALSA is obviously not needed for USBbridge, the usb-dac output is still available, I guess through the Allo package that is still installed.
I am from Barcelona, I know NOTHING
I used the dietpi-software command (I think) and uninstalled the ALSA linux audio mixer.
I only have SSH software and Roon Bridge, everything else is uninstalled.
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Anyone from Barcelona knows more food, music, architecture, and good living than the great majority of us. Linux shell command mojo is just a bonus
Hey Fernando,
While it probably is placebo – if you don’t care for the WebGUI, why not install the clean-as-a-whistle basic version of DietPi and add only Roon Bridge?
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I don’t think you can only add Roon Bridge, you also need the Allo package and some version of ssh at the very least, right? I’d like to have a Web GUI, but not until it handles custom server names and passwords correctly.
It’s easier: flash DietPi for Sparky and let the bugger update itself. After reboot, you’ll be presented with a menu where you can configure DietPi and install additional software (after installation, these are accessible by typing dietpi-config and dietpi-software).
In config, set usb-dac in 2. Audio Settings and change Hostname and root password in 6. Security Options. From optimized software, install Roon Bridge.
That’s all, really. DietPi has DropBear installed by default for light-weight SSH. This is all that’s running:
Sounds great. 
Thanks for the guidance, but I’m stumped by the following: if I remove ALSA, RoonBridge is up, but Roon fails to see it. If I reinstall ALSA, Roon sees it again, but the 6.8 alsamixer bug still happens