From 09bdf591f4724c7d0328d4d7b8808492addb5a28 Mon Sep 17 00:00:00 2001 From: Cedric Godin Date: Fri, 11 Jun 2010 14:40:56 -0400 Subject: [PATCH] drm/radeon/kms: fix dpms state on resume When suspending, we turn the display hw off, at resume the screen will stay black. This patch turn it on. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=16180 Signed-off-by: Cedric Godin Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_device.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index f10faed21567..5f317317aba2 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -779,6 +779,7 @@ int radeon_suspend_kms(struct drm_device *dev, pm_message_t state) int radeon_resume_kms(struct drm_device *dev) { + struct drm_connector *connector; struct radeon_device *rdev = dev->dev_private; if (rdev->powered_down) @@ -797,6 +798,12 @@ int radeon_resume_kms(struct drm_device *dev) radeon_resume(rdev); radeon_pm_resume(rdev); radeon_restore_bios_scratch_regs(rdev); + + /* turn on display hw */ + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON); + } + radeon_fbdev_set_suspend(rdev, 0); release_console_sem();