Sound card not discovered since upgrade to Zorin Lite 18.1

Hardware Support
21

If you were to reinstall 17.3 lite could you select the 6.8 kernel there and then update to 18.1 through the system instead of a fresh install? When I updated from 17.3 Pro to 18.1 Pro it kept my list of advanced options kernels and continued using 6.8 which was my default saved in grub.

1 Like
22

Thanks! That did not do the trick, but what does is to start in recovery mode and directly choose a "resume normal boot". It does not solve the problem (neither does a "repair broken packages") but at least I'm in. Thanks for the hint that provided a workaround :slight_smile:

Thanks! I will try that, but since I'm in now I will first apply the suggestions made earlier and then try your solution.

1 Like
24

If you are under Zorin now we can block future kernel update if you need and want

1 Like
25

OK, 3 very busy days later and I found some time yesterday evening to follow up.

I've reinstalled 17.3 and from there upgraded to Lite 18.1 Pro.
Not entirely unexepected this resulted in the same 2 problems:

  1. Startup freezes with the Medion & Zorin logo displayed
  2. Sound is again: "Dummy Output"

Based upon the advice of @NickS, I was able to now select Kernel 6.8 during startup (which was indeed preserved, because I upgraded). That resulted in a startup that does not freeze anymore and the correct "HDA Intel PCH" card with a "Realtek ALC256" chip identified by the now nicely starting Alsamixer.

So yes, @Nourpon for now I would indeed like to block future kernel updates and will also follow @Aravisian's instructions in the earlier referred topic "[HOW TO] set an older kernel to default boot]"

I dearly hope though that both problems can/will be solved for the newer kernel versions.

2 Likes
26

As you set it with instruction to set an older kernel you will not be affected with a kernel update, it will boot with the one you saved, and don't worry the kernel in use will not be removed

1 Like
27

Thank you! Will work on that tonight.

1 Like
28

My pleasure :wink:

29

Via a hint on Askubuntu I fiddled around with "inxi -A" in both the old and new kernel. The old kernel was using the "snd_hda_intel" driver and the new kernel: "sof-audio-pci-intel-apl".

Forcing the Linux Kernel to use the snd_hda_intel driver, appeared in the end to need a variant on an earlier tried solution:

Adding snd-intel-dspcfg.dsp_driver=1 to the GRUB_CMDLINE_LINUX_DEFAULT line in /etc/default/grub

Sound is now properly working again under Kernel 6.17

Next thing to tackle is the still irregular freezing of the start-screen. Looking into that one now :slightly_smiling_face:

Thanks to all who helped in this thread, hope someone may benefit from this solution.

3 Likes