I downloaded all the .deb files in to one folder. I did "sudo dpkg -i *.deb". I got 

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(base) wittawat@omen:~/software/kernel5.4.0-26$ sudo dpkg -i *.deb
[sudo] password for wittawat: 
(Reading database ... 363020 files and directories currently installed.)
Preparing to unpack linux-buildinfo-5.4.0-26-generic_5.4.0-26.30+skipi915_amd64.deb ...
Unpacking linux-buildinfo-5.4.0-26-generic (5.4.0-26.30+skipi915) over (5.4.0-26.30+skipi915) ...
Preparing to unpack linux-headers-5.4.0-26_5.4.0-26.30+skipi915_all.deb ...
Unpacking linux-headers-5.4.0-26 (5.4.0-26.30+skipi915) over (5.4.0-26.30) ...
Preparing to unpack linux-headers-5.4.0-26-generic_5.4.0-26.30+skipi915_amd64.deb ...
Unpacking linux-headers-5.4.0-26-generic (5.4.0-26.30+skipi915) over (5.4.0-26.30+skipi915) ...
dpkg: regarding linux-image-unsigned-5.4.0-26-generic_5.4.0-26.30+skipi915_amd64.deb containing linux-image-unsigned-5.4.0-26-generic:
 linux-image-unsigned-5.4.0-26-generic conflicts with linux-image-5.4.0-26-generic
  linux-image-5.4.0-26-generic (version 5.4.0-26.30) is present and installed.

dpkg: error processing archive linux-image-unsigned-5.4.0-26-generic_5.4.0-26.30+skipi915_amd64.deb (--install):
 conflicting packages - not installing linux-image-unsigned-5.4.0-26-generic
Preparing to unpack linux-modules-5.4.0-26-generic_5.4.0-26.30+skipi915_amd64.deb ...
Unpacking linux-modules-5.4.0-26-generic (5.4.0-26.30+skipi915) over (5.4.0-26.30+skipi915) ...
Preparing to unpack linux-modules-extra-5.4.0-26-generic_5.4.0-26.30+skipi915_amd64.deb ...
Unpacking linux-modules-extra-5.4.0-26-generic (5.4.0-26.30+skipi915) over (5.4.0-26.30+skipi915) ...
Setting up linux-buildinfo-5.4.0-26-generic (5.4.0-26.30+skipi915) ...
Setting up linux-headers-5.4.0-26 (5.4.0-26.30+skipi915) ...
Setting up linux-headers-5.4.0-26-generic (5.4.0-26.30+skipi915) ...
/etc/kernel/header_postinst.d/dkms:
 * dkms: running auto installation service for kernel 5.4.0-26-generic
   ...done.
Setting up linux-modules-5.4.0-26-generic (5.4.0-26.30+skipi915) ...
Setting up linux-modules-extra-5.4.0-26-generic (5.4.0-26.30+skipi915) ...
Processing triggers for linux-image-5.4.0-26-generic (5.4.0-26.30) ...
/etc/kernel/postinst.d/dkms:
 * dkms: running auto installation service for kernel 5.4.0-26-generic
   ...done.
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-5.4.0-26-generic
I: The initramfs will attempt to resume from /dev/nvme0n1p6
I: (UUID=d2015f5d-b89b-4eb2-a3a2-0af81dc8285f)
I: Set the RESUME variable to override this.
/etc/kernel/postinst.d/zz-update-grub:
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.4.0-26-generic
Found initrd image: /boot/initrd.img-5.4.0-26-generic
Found Windows Boot Manager on /dev/nvme0n1p1@/EFI/Microsoft/Boot/bootmgfw.efi
Adding boot menu entry for UEFI Firmware Settings
done
Errors were encountered while processing:
 linux-image-unsigned-5.4.0-26-generic_5.4.0-26.30+skipi915_amd64.deb
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Not sure if it was successfully installed. Does not seem to be the case. Anyway, I comment out "options snd-intel-dspcfg dsp_driver=1" and restarted. There is no new kernel option on the Grub menu. Here is the alsa-info:

http://alsa-project.org/db/?f=5760300c1dc0972bec286d980ba08c77bd2406b8

The log may be the same as before since I might be using the same kernel from before. I am not sure.