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drm/qxl: only report first monitor as connected if we have no state

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If the server isn't new enough to give us state, report the first
monitor as always connected, otherwise believe the server side.

Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2015-09-14 10:28:34 +10:00
parent 1f93e4a96c
commit 69e5d3f893
1 changed files with 7 additions and 5 deletions
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12
drivers/gpu/drm/qxl/qxl_display.c
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@ -886,13 +886,15 @@ static enum drm_connector_status qxl_conn_detect(
drm_connector_to_qxl_output(connector);
struct drm_device *ddev = connector->dev;
struct qxl_device *qdev = ddev->dev_private;
int connected;
bool connected = false;
/* The first monitor is always connected */
connected = (output->index == 0) ||
(qdev->client_monitors_config &&
qdev->client_monitors_config->count > output->index &&
qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]));
if (!qdev->client_monitors_config) {
if (output->index == 0)
connected = true;
} else
connected = qdev->client_monitors_config->count > output->index &&
qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
DRM_DEBUG("#%d connected: %d\n", output->index, connected);
if (!connected)