Comment 3 for bug 1760545

We have the exact same glk_dmc file in our linux-firmware package, which we received from upstream linux-firmware. The additional files should not be needed. The -2 error code does indicate it couldn't find the file, but perhaps the linux-firmware package was not up to date?

Can you confirm that you have the latest linux-firmware installed (1.173 as of right now) and that the /lib/firmware/glk_dmc_ver1_04.bin is present? Then if you still see problems, please let me know.