Same issue occurs with Radeon HD 4550 (RV710) using kernel 3.13 with Ubuntu 14.04. Resuming from Suspend boots to less than optimal graphics state. A reboot will return normal functionality.
dmesg | grep power returns familiar output but with the these error lines: [ 1420.560438] [drm:rv730_stop_dpm] *ERROR* Could not force DPM to low [1421.764025] [drm:rv770_dpm_set_power_state] *ERROR* rv770_set_sw_state failed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1319589 Title: [drm:rv770_dpm_set_power_state] *ERROR* rv770_set_sw_state failed To manage notifications about this bug go to: https://bugs.launchpad.net/dri/+bug/1319589/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
