Hi there!
I used to be able to suspend and hibernate on 5.5. I've got an old Radeon
that needed nomodeset to use some UMS quirks. Now on 6.0 if I add the
nomodeset boot parameter, I get a black screen at bootup and a hang immune to
magic sysrq. If I try to suspend without nomodeset, it's like in 5.5, when
resuming all I get is a black screen.
I've tried to fool around with radeon_combios.c to make it work in KMS but
with no success. My best result here was a kernel panic when resuming.
I also compiled a custom kernel with Radeon's depracated UMS support enabled
but the behavior is the same.
lspci -nn|grep VGA
01:05.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee
ATI Radeon XPRESS 200M 5955 (PCIE) [1002:5955]
Any words of wisdom gratefully accepted.
