Some Poulsbo cards seem to incorrectly report SDVO_CMD_STATUS_TARGET_NOT_SPECIFIED instead of SDVO_CMD_STATUS_PENDING, which causes the display to be turned off.
This could also happen to i915.
Signed-off-by: Guillaume Clement <gclement@xxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_sdvo.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 798df11..a5a2192 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -539,7 +539,8 @@ static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo,
&status))
goto log_fail;
- while (status == SDVO_CMD_STATUS_PENDING && --retry) {
+ while ((status == SDVO_CMD_STATUS_PENDING ||
+ status == SDVO_CMD_STATUS_TARGET_NOT_SPECIFIED) && --retry) {
if (retry < 10)
msleep(15);
else
--
1.8.1.5
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