[Bug 110886] After S3 resume, kernel: [drm:drm_atomic_helper_wait_for_flip_done [drm_kms_helper]] *ERROR* [CRTC:57:crtc-0] flip_done timed out

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110886

--- Comment #7 from Kai-Heng Feng <kai.heng.feng at canonical.com> ---
I also tried disabling GFXOFF but the same issue still happens:
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
index a24beaa4fb01..62a8394b1f5f 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
@@ -173,6 +173,7 @@ int hwmgr_early_init(struct pp_hwmgr *hwmgr)
        case AMDGPU_FAMILY_RV:
                switch (hwmgr->chip_id) {
                case CHIP_RAVEN:
+                       hwmgr->feature_mask &= ~PP_GFXOFF_MASK;
                        hwmgr->od_enabled = false;
                        hwmgr->smumgr_funcs = &smu10_smu_funcs;
                        smu10_init_function_pointers(hwmgr);

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