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kms: correctly filter modes

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This commit is contained in:
Victoria Brekenfeld 2022-07-19 14:41:04 +02:00
parent 6b659eb107
commit f23e556199
1 changed files with 7 additions and 1 deletions
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8
src/backend/kms/mod.rs
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@ -40,7 +40,7 @@ use smithay::{
DisplayHandle, Resource,
},
},
utils::signaling::{Linkable, SignalToken, Signaler},
utils::{Size, signaling::{Linkable, SignalToken, Signaler}},
wayland::{
dmabuf::DmabufGlobal,
output::{Mode as OutputMode, Output, PhysicalProperties},
@ -825,6 +825,12 @@ impl KmsState {
let mode = conn_info
.modes()
.iter()
// match the size
.filter(|mode| {
let (x, y) = mode.size();
Size::from((x as i32, y as i32)) == output_config.mode_size()
})
// and then select the closest refresh rate (e.g. to match 59.98 as 60)
.min_by_key(|mode| {
let refresh_rate = drm_helpers::calculate_refresh_rate(**mode);
(output_config.mode.1.unwrap() as i32 - refresh_rate as i32).abs()