I followed all the instructions received and now it is working without power output interruptions.
Thank you to everybody.
73, Yvon AE7YD
Monday, June 21, 2021, 5:20:43 PM, you wrote:
|I've also seen WSJT-X stop producing TX audio on 2.4.0. I have the USB sleep turned off, which did help. It's an odd issue because my particular PC (Win10, up to date) has no physical connection to the rig. The audio has to get as far as the SmartSDR DAX process running on the same PC.
On Mon, Jun 21, 2021 at 11:07 AM Yvon AE7YD <Yvon@...> wrote:
|Thank you Bill,
this makes sense and I'll try it. I'll report later if it did solve the problem.
73, Yvon AE7YD
Monday, June 21, 2021, 3:02:54 AM, you wrote:
> On 21/06/2021 04:48, Yvon AE7YD wrote:
>> I apologize if this has already been covered but search didn't bring > it up.
>> After some time WSJT-X will stop sending audio. That time is variable. > If I close the program and restart it, it works again. But after a > while it will stop again.
>> All other functions keep working fine.
>> The problem is not related with the radio or the PC as I have tried > with two different PC (one running Win10 home and the other running > Win10 Pro).
>> I also tried with 4 different radios Omega 900, Elecraft KX2, FTDX10 > and DR-4020, same problem.
>> Thank you for any help.
>> 73, Yvon
> Hi Yvon,
> the issue you describe is often due to MS Windows deciding to power down USB audio devices it thinks are not being used. You must disable the power management options for each USB Hub Device listed in Windows Device Manager under "Universal Serial Bus Controllers" (right-click device, select Properties, then Power Management, and uncheck the allow option).
> You also must disable the USB Selective Suspend option in the Windows "Power Options->Change plans settings (on the current plan)->Change Advanced Power Settings" open "USB settings", then "USB selecting suspend setting", and click the "Plugged in" option to select Disabled.
> As Bob, G8HGN, points out, there is another issue with HDMI monitor connections. HDMI connections include a USB audio connection which too can be unexpectedly powered down when a screen-saver or power-saver function activates. I don't know of any settings to stop that other than making sure graphics card/chip power management settings for the monitor and screen saver are disabled, YMMV.
> The root problem is that USB devices are "hot-pluggable" and adding or removing a device, while the system is running, will cause all other devices to be re-enumerated, this can change device identities but Windows does not inform applications using them that they have been shuffled.
> Note this issue affects audio devices but not virtual serial ports like those often used for CAT control, virtual serial ports over USB connections seem to be capable of blocking such power saving options, presumably because they are one-to-one connections and Windows can be sure when they are in use.