Thank you
@Aki for your reply. I had been dabbling on and off with this problem since posting without much luck. Since I need this machine to have audio capability more than I need it to have all of the features of the Radeon graphics card and as the machine has only just been set-up I decided to reinstall and see what the base installation contained before I took the plunge and added the missing Radeon firmware. Without the Radeon firmware the display is operational, the sound is operational and all I see is an annoying but by no means terminal warning during the machine boot up.
So having restored the machine to its installed configuration without the Radeon firmware, which as before was a netinstall iso of Debian Bullseye, I have the following outputs:
This shows both sound cards being present and detected although the "Juniper" card continues to be "Disabled" and "Off". Nevertheless the internal Intel soundcard works fine with both a successful speaker test plus it has played back an audio file through Audacity. The Alsa Mixer can see both cards as shown in the graphics below:
During bootup there is a warning about missing AMD/ATI firmware as follows:
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dmesg | grep firmware
[ 2.818177] [drm:radeon_pci_probe [radeon]] *ERROR* radeon kernel modesetting for R600 or later requires firmware installed
[ 2.818296] See https://wiki.debian.org/Firmware for information about missing firmware
[ 6.104948] platform regulatory.0: firmware: direct-loading firmware regulatory.db
[ 6.105309] platform regulatory.0: firmware: direct-loading firmware regulatory.db.p7s
As I said before although this is annoying it doesn't stop things working so if the choice is between full graphics functionality, which isn't critical but would be nice to have, and no sound, then I will forego full graphics functionality at least until we've done our British Science Week demonstration at a local school where this laptop will be the receiving side of a SSTV demonstration which absolutely needs functioning sound!
The same 'lspci ' and 'cat' results as were in the first post are also repeated:
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lspci | grep VGA
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Broadway PRO [Mobility Radeon HD 5850]
lspci | grep Audio
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06)
01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Juniper HDMI Audio [Radeon HD 5700 Series]
cat /proc/asound/cards
0 [MID ]: HDA-Intel - HDA Intel MID
HDA Intel MID at 0xf8a00000 irq 32
1 [HDMI ]: HDA-Intel - HDA ATI HDMI
HDA ATI HDMI at 0xf8420000 irq 33
cat /proc/asound/modules
0 snd_hda_intel
1 snd_hda_intel
I hadn't come across the commands you suggested but have run these also with the following outputs:
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LANG=C apt --names-only search pulseaudio | grep installed
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
pulseaudio/stable,now 14.2-2 amd64 [installed,automatic]
pulseaudio-module-bluetooth/stable,now 14.2-2 amd64 [installed,automatic]
pulseaudio-utils/stable,now 14.2-2 amd64 [installed,automatic]
LANG=C apt --names-only search pipewire | grep installed
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
libpipewire-0.3-0/stable,now 0.3.19-4 amd64 [installed,automatic]
libpipewire-0.3-modules/stable,now 0.3.19-4 amd64 [installed,automatic]
pipewire/stable,now 0.3.19-4 amd64 [installed,automatic]
pipewire-bin/stable,now 0.3.19-4 amd64 [installed,automatic]
I'm not sure what you were expecting the output of these two new commands to show but if this information is helpful then please let me know what conclusions you are able to draw.
For now I am content that the system is working suitably for its immediate uses. I would like to install the Radeon firmware to get whatever additional performance can be gained from the elderly Mobility Radeon HD 5850, but only if the firmware can be added without conflicting with the Intel onboard sound card.
Thanks again for your time and your help.