sound hdmisound-out slows down sound AND video

[vilde]

i want to use an old laptop to view video on a tv-screen.

All works fine with computer speaker, Turning on hdmisound slows down  both  sound and video.

This issue is asked about before on internet but I  have not find any  real solution that I understand.

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System:
  Host: ola-edge Kernel: 5.18.5-2-siduction-amd64 arch: x86_64 bits: 64
    compiler: gcc v: 12.1.0 Desktop: KDE Plasma v: 5.24.5
    Distro: siduction 21.3.90 Wintersky - kde - (202205031339)
    base: Debian GNU/Linux bookworm/sid
Machine:
  Type: Laptop System: LENOVO product: 03022NG v: ThinkPad Edge
    serial: <superuser required>
  Mobo: LENOVO model: 03022NG serial: <superuser required>
    BIOS: LENOVO v: 82ET25WW (1.11 ) date: 07/28/2010
Battery:
  ID-1: BAT1 charge: 47.4 Wh (99.8%) condition: 47.5/47.5 Wh (100.0%)
    volts: 11.7 min: 10.8 model: LGC 42T4911 status: not charging
CPU:
  Info: dual core model: AMD Athlon II P320 bits: 64 type: MCP
    arch: K10 rev: 3 cache: L1: 256 KiB L2: 1024 KiB
  Speed (MHz): avg: 800 min/max: 800/2100 cores: 1: 800 2: 800
    bogomips: 8378
  Flags: ht lm nx pae sse sse2 sse3 sse4a svm
Graphics:
  Device-1: AMD RS880M [Mobility Radeon HD 4225/4250] vendor: Lenovo
    driver: radeon v: kernel arch: TeraScale bus-ID: 01:05.0
  Device-2: Chicony Lenovo Integrated Camera type: USB
    driver: uvcvideo bus-ID: 1-4:2
  Display: x11 server: X.Org v: 1.21.1.3 driver: X: loaded: radeon
    unloaded: fbdev,modesetting,vesa gpu: radeon resolution:
    1: 1366x768~60Hz 2: N/A
  OpenGL: renderer: AMD RS880 (DRM 2.50.0 / 5.18.5-2-siduction-amd64
    LLVM 14.0.4)
    v: 3.3 Mesa 22.0.5 direct render: Yes
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    vendor: Lenovo driver: r8169 v: kernel port: c000 bus-ID: 08:00.0
  IF: enp8s0 state: up speed: 1000 Mbps duplex: full
    mac: 60:eb:69:62:79:ee
  Device-2: Realtek RTL8191SEvB Wireless LAN driver: rtl8192se
    v: kernel port: d000 bus-ID: 09:00.0
  IF: wlan0 state: down mac: 1c:65:9d:6c:f6:2a
Drives:
  Local Storage: total: 1.88 TiB used: 1.83 TiB (97.3%)
Info:
  Processes: 187 Uptime: 33m Memory: 1.69 GiB used: 1.16 GiB (68.9%)
  Init: systemd target: graphical (5) Compilers: gcc: 11.3.0
  Packages: 2624 Shell: Bash v: 5.1.16 inxi: 3.3.19

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Audio:
  Device-1: AMD SBx00 Azalia driver: snd_hda_intel
  Device-2: AMD RS880 HDMI Audio [Radeon HD 4200 Series]
    driver: snd_hda_intel
  Sound Server-1: ALSA v: k5.18.5-2-siduction-amd64 running: yes
  Sound Server-2: PipeWire v: 0.3.52 running: yes

[eriefisher]

Unless you've already tried, I would get a good quality cable. I've had trouble in the past with cheap cables.

[edlin]

Welche Prozesse fressen denn die CPU-Leistung und/oder deinen Speicher auf? Was sagt htop?

edlin
____
Which processes are eating up CPU power and/or your memory? What does htop say?

edlin

[vilde]

Thanks for answers, apologize for long time no response from me.

I have already tried vith new and good hdmi cable.

Htop--- I'm not really sure how to read but as I understand it's less load on  resources whith hdmi and bad sound.

[eriefisher]

What are you using to play the video? Is there a specific format your playing?

[vilde]

It doesn't matter if it's an mp4 och mkv, same happens, I have tried with SMP, VLC and some other player, I have tried the sound settings inside the player, and of cause in Settings Auido, whatever it looks like in System. I have tried xfce and kde branch. What I know is that it worked with that machine and cable with an (updated) older Siduction xfce installation. But that installation didn't manage the display on the tv as it should, therefore I installed kde that turned out to manage the display better for me.

Thank's for trying to help, but I need this machine to view movies now, I did a "dirty trick" installed MX-Linux latest KDE,  and then it's working..... so sorry, but I can't test anymore.

In both Siduction and MX installations PulseAudio settings for the hdmi sound indicates "unplugged" although the sound and movie really works in MX but not in Siduction.