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drm/qxl: fix disabling extra monitors from client

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To disable a monitor, a Spice client sends a monitor config with the
monitor resolution to 0x0.

However, before qxl_crtc_disable() is reached after the hotplug event,
it can happen that another monitor is reconfigured, and
qxl_send_monitors_config() is called with the old config, which will
re-enable the monitor on the client.

Reset config if monitor is found disconnected, during
drm_helper_hpd_irq_event().

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Marc-André Lureau 2013-10-18 16:11:33 +02:00 committed by Dave Airlie
parent a40a60d912
commit 5cab51cb33
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/qxl/qxl_display.c
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@ -803,7 +803,10 @@ static enum drm_connector_status qxl_conn_detect(
qdev->client_monitors_config->count > output->index &&
qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]));
DRM_DEBUG("\n");
DRM_DEBUG("#%d connected: %d\n", output->index, connected);
if (!connected)
qxl_monitors_config_set(qdev, output->index, 0, 0, 0, 0, 0);
return connected ? connector_status_connected
: connector_status_disconnected;
}