On these Barebones PSR 2 is recognized as supported but is very buggy:
- Upper third of screen does sometimes not updated, resulting in
disappearing cursors or ghosts of already closed Windows saying behind.
- Approximately 40 px from the bottom edge a 3 pixel wide strip of randomly
colored pixels is flickering.
PSR 1 is working fine however.
Signed-off-by: Werner Sembach <wse@xxxxxxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_quirks.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_quirks.c b/drivers/gpu/drm/i915/display/intel_quirks.c
index ce6d0fe6448f5..eeb32d3189f5c 100644
--- a/drivers/gpu/drm/i915/display/intel_quirks.c
+++ b/drivers/gpu/drm/i915/display/intel_quirks.c
@@ -65,6 +65,10 @@ static void quirk_no_pps_backlight_power_hook(struct drm_i915_private *i915)
drm_info(&i915->drm, "Applying no pps backlight power quirk\n");
}
+/*
+ * Tongfang PHxTxX1 and PHxTQx1 devices have support for PSR 2 but it is broken
+ * on Linux. PSR 1 however works just fine.
+ */
static void quirk_no_psr2(struct drm_i915_private *i915)
{
intel_set_quirk(i915, QUIRK_NO_PSR2);
@@ -205,6 +209,10 @@ static struct intel_quirk intel_quirks[] = {
/* ECS Liva Q2 */
{ 0x3185, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },
{ 0x3184, 0x1019, 0xa94d, quirk_increase_ddi_disabled_time },
+
+ /* Tongfang PHxTxX1 and PHxTQx1/TUXEDO InfinityBook 14 Gen6 */
+ { 0x9a49, 0x1d05, 0x1105, quirk_no_psr2 },
+ { 0x9a49, 0x1d05, 0x114c, quirk_no_psr2 },
};
void intel_init_quirks(struct drm_i915_private *i915)
--
2.34.1
