xorg-x11-6.8.0 contains a bug in the radeon-driver, causing swsusp2 to fail. Link goes to the bug in the xorg-bugzilla. Patch attached, can this be included in the xorg-ebuild?
Created attachment 43367 [details, diff] patch for xorg
Already in 6.8.0-r2. Not adding it to anything lower -- those are staying as static as possible.