On 2024-02-05 16:12, Mario Limonciello wrote:
Stuart Hayhurst has found that both at bootup and fullscreen VA-API video
is leading to black screens for around 1 second and kernel WARNING [1] traces
when calling dmub_psr_enable() with Parade 08-01 TCON.
These symptoms all go away with PSR-SU disabled for this TCON, so disable
it for now while DMUB traces [2] from the failure can be analyzed and the
failure
state properly root caused.
Cc: [email protected]
Cc: Marc Rossi <[email protected]>
Cc: Hamza Mahfooz <[email protected]>
Link:
https://gitlab.freedesktop.org/drm/amd/uploads/a832dd515b571ee171b3e3b566e99a13/dmesg.log
[1]
Link:
https://gitlab.freedesktop.org/drm/amd/uploads/8f13ff3b00963c833e23e68aa8116959/output.log
[2]
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/2645
Signed-off-by: Mario Limonciello <[email protected]>
Reviewed-by: Leo Li <[email protected]>
Thanks
---
---
drivers/gpu/drm/amd/display/modules/power/power_helpers.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
index e304e8435fb8..477289846a0a 100644
--- a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
+++ b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
@@ -841,6 +841,8 @@ bool is_psr_su_specific_panel(struct dc_link *link)
isPSRSUSupported = false;
else if (dpcd_caps->sink_dev_id_str[1] == 0x08 &&
dpcd_caps->sink_dev_id_str[0] == 0x03)
isPSRSUSupported = false;
+ else if (dpcd_caps->sink_dev_id_str[1] == 0x08 &&
dpcd_caps->sink_dev_id_str[0] == 0x01)
+ isPSRSUSupported = false;
else if (dpcd_caps->psr_info.force_psrsu_cap == 0x1)
isPSRSUSupported = true;
}
