XPost: linux.debian.bugs.dist 
 From: frazzmatazz@gmail.com 
  
 Nope, still freezes. I'm trying to disable HDMI sound in modprobe. And 
 posted in the Debian forum for suggestions. 
  
 On Sun, 2 Nov 2025 at 18:10, Fraser Wright  wrote: 
  
 > I think I've found the problem. It is not a wsjtx bug, but a problem in 
 > how sound is handled when the screen goes to sleep. This problem affects 
 > other programs which are recording audio such as fldigi too. 
 > 
 > This post on Ask Ubuntu hints at a similar problem. I think the screen 
 > going to sleep (and hdmi sound stopping although I'm not using hdmi sound) 
 > is somehow changing how audio is being piped to the software. 
 > The post suggests disabling 'module-switch-on-port-available' in 
 > /etc/pulse/default.pa. 
 > 
 > https://askubuntu.com/questions/776883/pulseaudio-drops-hdmi-o 
 tput-at-screen-power-save 
 > 
 > My system runs the Debian Trixie pipewire with pulseaudio modules. I have 
 > disabled module-switch-on-port-available and restarted pipewire/pulseaudio 
 > and it seems to have fixed the problem, it's been working with the screen 
 > asleep. 
 > I'll leave it running overnight to confirm. 
 > 
 > Fraser 
 > 
 > On Fri, 19 Sept 2025 at 07:51, Fraser Wright  
 > wrote: 
 > 
 >> Some further info. I have noticed when I log in after being away and 
 >> WSJTX appears frozen, it is using 100% processor. If I leave it for a few 
 >> minutes minutes it eventually recovers. However while frozen like this it 
 >> stops reporting to PSK reporter. 
 >> 
 >> I have a low power processor: Intel J5040 from 2019 (10W passively cooled 
 >> mini ITX board). WSJTX usually uses about 7% CPU and jt9 uses about 12-20% 
 >> when everything is normal. 
 >> 
 >> I usually use the USB audio 
 >> "alsa_input.usb-Burr-Brown_from_TI_USB_Audio_CODEC-00.iec958-stereo" for 
 >> the rig, but it also freezes using the pulseaudio default with analogue 
 >> 3.5mm cable. Freezing also happens when I disable the rig connection and 
 >> just use a stand alone shortwave radio. 
 >> 
 >> I haven't seen freezes with interactive use, or when it is running in the 
 >> background and I am using the computer. 
 >> 
 >> Any ideas why CPU is pegged at 100% when I've been away for a while? 
 >> Perhaps this happens to other people, but with a faster CPU the recovery 
 is 
 >> quick enough they don't notice. 
 >> 
 >> On Tue, 16 Sept 2025 at 21:43, Fraser Wright  
 >> wrote: 
 >> 
 >>> I haven't seen any audio delays or problems. 
 >>> The program is just frozen, does not respond to UI elements, it doesn't 
 >>> redraw the window, and doesn't respond to closing it with the window 
 >>> manager X icon, until the window manager (xfce4) offers to kill it. Then 
 I 
 >>> have to kill jt9 otherwise it complains about that being frozen when 
 >>> restarted. That might be a clue, but I've never used jt9. 
 >>> 
 >>> I'll install the newest version from unstable and see if it persists. 
 >>> Fraser 
 >>> 
 >> 
  
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