legacy: disable connectors on device creation

This commit is contained in:
Victor Brekenfeld 2020-04-26 13:48:03 +02:00
parent 8c8f5e0d59
commit 50f94d013a
1 changed files with 58 additions and 3 deletions

View File

@ -88,9 +88,21 @@ impl<A: AsRawFd + 'static> Drop for Dev<A> {
impl<A: AsRawFd + 'static> LegacyDrmDevice<A> {
/// Create a new [`LegacyDrmDevice`] from an open drm node
///
/// Returns an error if the file is no valid drm node or context creation was not
/// successful.
pub fn new<L>(dev: A, logger: L) -> Result<Self, Error>
/// # Arguments
///
/// - `fd` - Open drm node
/// - `disable_connectors` - Setting this to true will initialize all connectors \
/// as disabled on device creation. smithay enables connectors, when attached \
/// to a surface, and disables them, when detached. Setting this to `false` \
/// requires usage of `drm-rs` to disable unused connectors to prevent them \
/// showing garbage, but will also prevent flickering of already turned on \
/// connectors (assuming you won't change the resolution).
/// - `logger` - Optional [`slog::Logger`] to be used by this device.
///
/// # Return
///
/// Returns an error if the file is no valid drm node or the device is not accessible.
pub fn new<L>(dev: A, disable_connectors: bool, logger: L) -> Result<Self, Error>
where
L: Into<Option<::slog::Logger>>,
{
@ -151,6 +163,49 @@ impl<A: AsRawFd + 'static> LegacyDrmDevice<A> {
}
}
if disable_connectors {
for conn in res_handles.connectors() {
let info = dev.get_connector(*conn).compat().map_err(|source| Error::Access {
errmsg: "Failed to get connector infos",
dev: dev.dev_path(),
source
})?;
if info.state() == connector::State::Connected {
let props = dev.get_properties(*conn).compat().map_err(|source| Error::Access {
errmsg: "Failed to get properties for connector",
dev: dev.dev_path(),
source
})?;
let (handles, _) = props.as_props_and_values();
for handle in handles {
let info = dev.get_property(*handle).compat().map_err(|source| Error::Access {
errmsg: "Failed to get property of connector",
dev: dev.dev_path(),
source
})?;
if info.name().to_str().map(|x| x == "DPMS").unwrap_or(false) {
dev.set_property(*conn, *handle, 3/*DRM_MODE_DPMS_OFF*/)
.compat().map_err(|source| Error::Access {
errmsg: "Failed to set property of connector",
dev: dev.dev_path(),
source
})?;
}
}
}
}
for crtc in res_handles.crtcs() {
// null commit
dev.set_crtc(*crtc, None, (0, 0), &[], None)
.compat()
.map_err(|source| Error::Access {
errmsg: "Error setting crtc",
dev: dev.dev_path(),
source,
})?;
}
}
Ok(LegacyDrmDevice {
dev: Rc::new(dev),
dev_id,