[Bug 43829] Resuming my AMD A4-3300 based laptop leaves the screen black

https://bugs.freedesktop.org/show_bug.cgi?id=43829

--- Comment #50 from Helge Bahmann hcb@chaoticmind.net --- (In reply to comment #49)

I have a similar issue with a samsumg series 3 laptop with "VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] BeaverCreek [Radeon HD 6620G]" and "VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Seymour [Radeon HD 6400M/7400M Series]". after resume an external monitor show the system is still responsive.

BUT I can make the screen turn on after suspend with the next command: sudo pm-suspend --quirk-test --quirk-s3-bios

whoa, that worked as well for me! I'll try to dissect unless someone else jumps to it, and then make good on my promise above :)