** Changed in: hwe-next
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1850572
Title:
AMD Prairie Falcon platform failed to boot up
Status in HWE Next:
Fix Released
Status in linux package in Ubuntu:
Invalid
Status in linux-oem package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
Fix Released
Status in linux-oem source package in Bionic:
Fix Released
Bug description:
[Impact]
AMD Prairie Falcon is the AME Embedded variant of Stoney. It fails to boot up
without disable its CGCG feature.
Set 'amdgpu.cg_mask=0xfffffffb' kernel parameter to disable CGCG
[Fix]
Suggestion from AMD that we have to cherry pick this commit which is included
in v4.16
fb4bbba27753 drm/amdgpu: re-enable CGCG on CZ and disable on ST
[Test]
Verified on AMD Prairie Falcon platform, system boots up normally.
[Regression Potential]
Low, this commit has been included for more than one and a half year in the
upstream, should be pretty safe to include it.
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