Ascertaining whether HWA is enabled is difficult.

[RokeJulianLockhart]

As explained at discussion.fedoraproject.org/t/87945/7, I don't see (en/de)codement in nvtop, although github.com/luisbocanegra/plasma-smart-video-wallpaper-reborn/blob/94ad05fd3a8e628f166189cc51b1fb41890dbc82/README.md#improve-performance-by-enabling-hardware-video-acceleration ¹ mentions that I should with HWA enabled:

2 × Width

Device 0 [AMD Radeon Graphics] Integrated GPU RX: N/A TX: N/A                 Device 1 [AMD Radeon RX 5700]  PCIe GEN 4@16x RX: N/A TX: N/A
 GPU 600MHz  MEM 2800MHz TEMP  26°C CPU-FAN  POW  19 W                         GPU 13MHz   MEM 100MHz  TEMP  38°C FAN   0% POW  17 / 170 W
 GPU[                               0%] MEM[|              15.809Mi/512.000Mi] GPU[                               1%] MEM[||||||            1.576Gi/7.984Gi]
   ┌──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
100│GPU0 %                                                                                                                                                                                                                                                                                                                    │
   │GPU0 mem%                                                                                                                                                                                                                                                                                                                 │
 75│                                                                                                                                                                                                                                                                                                                          │
   │                                                                                                                                                                                                                                                                                                                          │
   │                                                                                                                                                                                                                                                                                                                          │
 50│                                                                                                                                                                                                                                                                                                                          │
   │                                                                                                                                                                                                                                                                                                                          │
 25│                                                                                                                                                                                                                                                                                                                          │
   │                                                                                                                                                                                                                                                                                                     ┌────────────────────│
  0│─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┴────────────────────│
   └157s────────────────────────────────────────────────────────────────────────117s────────────────────────────────────────────────────────────────────────────78s───────────────────────────────────────────────────────────────────────────39s───────────────────────────────────────────────────────────────────────────0s┘
   ┌──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
100│GPU1 %                                                                                                                                                                                                                                                                                                                    │
   │GPU1 mem%                                                                                                                                                                                                                                                                                                                 │
 75│                                                                                                                                                                                                                                                                                                                          │
   │                                                                                                                                                                                                                                                                                                                          │
   │                                                                                                                                                                                                                                                                                                                          │
 50│                                                                                                                                                                                                                                                                                                                          │
   │                                                                                                                                                                                                                                                                                                                          │
 25│                                                                                                                                                                                                                                                                                                     ┌┬─┬─────────────────│
   │                                                                                                                                                                                                                                                                                                    ┌┼┘ │       ┌───┐     │
  0│────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┴┘  └───────┘   └─────│
   └157s────────────────────────────────────────────────────────────────────────117s────────────────────────────────────────────────────────────────────────────78s───────────────────────────────────────────────────────────────────────────39s───────────────────────────────────────────────────────────────────────────0s┘
    PID               USER DEV     TYPE  GPU        GPU MEM    CPU  HOST MEM Command                                                                                                                                                                                                                                           
   6938 RokeJulianLockhart   1 Both G+C   0%    370MiB   5%     2%    964MiB /usr/lib64/firefox/firefox                                                                                                                                                                                                                        
   2028 RokeJulianLockhart   1 Both G+C   0%    242MiB   3%     1%    606MiB /usr/bin/plasmashell --no-respawn
  78583 RokeJulianLockhart   1 Both G+C   0%     97MiB   1%     0%    256MiB /usr/bin/gwenview /home/RokeJulianLockhart/Pictures/Screenshots/Screenshot_20250316_112945.png
   1901 RokeJulianLockhart   1 Both G+C   0%     96MiB   1%     0%    157MiB /usr/bin/maliit-keyboard
  62865 RokeJulianLockhart   1 Both G+C   0%     95MiB   1%     0%    241MiB /usr/bin/gwenview /home/RokeJulianLockhart/Pictures/Screenshots/Screenshot_20250316_110401.png
  78379 RokeJulianLockhart   1 Both G+C   0%     94MiB   1%     0%    268MiB /usr/bin/spectacle --dbus
F2Setup   F6Sort    F9Kill    F10Quit    F12Save Config                                                                                                                                                                                                                                                                        

Consequently, I did as my distribution recommends, and invoke vainfo. However, I see nothing that explicitly relates to HWA:

Trying display: wayland
libva info: VA-API version 1.22.0
libva info: Trying to open /usr/lib64/dri-nonfree/radeonsi_drv_video.so
libva info: Trying to open /usr/lib64/dri-freeworld/radeonsi_drv_video.so
libva info: Found init function __vaDriverInit_1_22
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.22 (libva 2.22.0)
vainfo: Driver version: Mesa Gallium driver 25.0.1 for AMD Radeon RX 5700 (radeonsi, navi10, LLVM 19.1.7, DRM 3.61, 6.13.6-200.fc41.x86_64)
vainfo: Supported profile and entrypoints
	    VAProfileMPEG2Simple            :	VAEntrypointVLD
	    VAProfileMPEG2Main              :	VAEntrypointVLD
	    VAProfileVC1Simple              :	VAEntrypointVLD
	    VAProfileVC1Main                :	VAEntrypointVLD
	    VAProfileVC1Advanced            :	VAEntrypointVLD
	    VAProfileH264ConstrainedBaseline:	VAEntrypointVLD
	    VAProfileH264ConstrainedBaseline:	VAEntrypointEncSlice
	    VAProfileH264Main               :	VAEntrypointVLD
	    VAProfileH264Main               :	VAEntrypointEncSlice
	    VAProfileH264High               :	VAEntrypointVLD
	    VAProfileH264High               :	VAEntrypointEncSlice
	    VAProfileHEVCMain               :	VAEntrypointVLD
	    VAProfileHEVCMain               :	VAEntrypointEncSlice
	    VAProfileHEVCMain10             :	VAEntrypointVLD
	    VAProfileHEVCMain10             :	VAEntrypointEncSlice
	    VAProfileJPEGBaseline           :	VAEntrypointVLD
	    VAProfileVP9Profile0            :	VAEntrypointVLD
	    VAProfileVP9Profile2            :	VAEntrypointVLD
	    VAProfileNone                   :	VAEntrypointVideoProc

Footnotes

1. blob/94ad05fd3a8e628f166189cc51b1fb41890dbc82/README.md?plain=1#L122C51-L122C126 ↩

[luisbocanegra]

If you test with mpv --hwdec=auto video.mp4 does it show that is using hardware decoding?

mpv --hwdec=auto test.mp4
Ignoring profile=default from config file.
● Video  --vid=1  --vlang=eng  (vp9 3840x2160 23.976 fps) [default]
● Audio  --aid=1  --alang=eng  (opus 2ch 48000 Hz) [default]
Using hardware decoding (vaapi).
AO: [pipewire] 48000Hz stereo 2ch floatp
VO: [gpu] 3840x2160 vaapi[nv12]
Saving state.
AV: 00:00:05 / 00:03:53 (2%) A-V:  0.000
Exiting... (Quit)

If it does, and you run nvtop again does it show the decoding?

[RokeJulianLockhart]

#97 (comment)

Yes, @luisbocanegra, to both:

1. Using hardware decoding (vaapi).

   mpv --hwdec=auto "/home/RokeJulianLockhart/Documents/@{'Name'='KCMs'}#.dir/@{'Name'='Wallpaper'}#.dir/@{'Name'='Maximum Quality'}#.MP4"
   ● Video  --vid=1  --vlang=eng  (h264 2560x1440 60 fps) [default]
   ● Audio  --aid=1  --alang=eng  (aac 2ch 48000 Hz 317 kbps) [default]
   Cannot load libcuda.so.1
   Using hardware decoding (vaapi).
   AO: [pipewire] 48000Hz stereo 2ch floatp
   VO: [gpu] 2560x1440 vaapi[nv12]
   AV: 00:00:18 / 00:10:57 (3%) A-V:  0.000
   Exiting... (Quit)
   

2. I see at least "DEC":

   

Thank you!

[luisbocanegra]

I don't have an AMD gpu to test but there are some reports in the nvtop repo about it not displaying video decoding/encoding ¹

Have you tried with amdgpu_top?

Footnotes

1. https://github.com/search?q=repo%3ASyllo%2Fnvtop+amd+decoding&type=issues ↩

[RokeJulianLockhart]

#97 (comment)

It's not packaged in Fedora or RPMFusion's repositories, and I'd rather not have the remnants of a compilation lying about my system if possible. Apologies, and thanks.