From 1b24203e51072b6e76aff8c74bdd67eb3b34a724 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 11 Jan 2010 15:02:31 -0500 Subject: drm/radeon/kms/rv100: reject modes > 135 Mhz on DVI (v2) Due to heat issues. Fixes fdo bug 25992 v2: fix typo noticed by Maarten Maathuis Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_connectors.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index 9da10dd5df8..55266416fa4 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -900,10 +900,18 @@ static void radeon_dvi_force(struct drm_connector *connector) static int radeon_dvi_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { + struct drm_device *dev = connector->dev; + struct radeon_device *rdev = dev->dev_private; struct radeon_connector *radeon_connector = to_radeon_connector(connector); /* XXX check mode bandwidth */ + /* clocks over 135 MHz have heat issues with DVI on RV100 */ + if (radeon_connector->use_digital && + (rdev->family == CHIP_RV100) && + (mode->clock > 135000)) + return MODE_CLOCK_HIGH; + if (radeon_connector->use_digital && (mode->clock > 165000)) { if ((radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I) || (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D) || -- cgit v1.2.3