Suspend and hibernate problems
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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.
I am a member!
"Any words of wisdom gratefully accepted."
Today is the first day of the rest of your life.
... Kidding :-)
I don't know much about the subject, but I missed the information about which kernel versions you tried.
xD
I tried 3.5.0-31-generic and 3.9.4-gnu.
I don't know but I believe quite a few people are having problems with suspend and hibernate.
I think it would be a good idea for somebody to write a little program that would systematically test all the quirks. It should first ask a few questions to rule out some of the quirks.
It would be a semi-automatic process because the user would still be required to do the hard power off shutdowns when the system hangs with wrong quirks and it could show a cute little matrix of what quirks have been tested and allow the user to click a test next quirks button.
I believe many, many systems would work if only they had the correct quirks. And suspend and hibernate are killer features in my opinion. I'll take another shot at my problem once my fatigue dissipates...
Makes me glad to hear my scribblings helped you Armworm.
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