found 935456 5.9.6-1~bpo10+1 quit After having spent several hours on kernel compiles and experimenting with the situation, I'm fairly sure this also applies to linux-source-5.9.
Odd thing is, when I booted the device using the Tianocore implementation it came right up with no problems. I'm getting this odd suspicion someone deliberately broke the device-trees in Debian's kernel source. The goal being to force everyone onto the Tianocore/ACPI implementation and try to kill device-trees. Right now I think this is conspiracy theory territory, but I'm left wondering how such a serious bug could hang around so long... -- (\___(\___(\______ --=> 8-) EHM <=-- ______/)___/)___/) \BS ( | ehem+sig...@m5p.com PGP 87145445 | ) / \_CS\ | _____ -O #include <stddisclaimer.h> O- _____ | / _/ 8A19\___\_|_/58D2 7E3D DDF4 7BA6 <-PGP-> 41D1 B375 37D0 8714\_|_/___/5445