From a7b38192142440c59a4e793cf5de99b9a7f1c2c3 Mon Sep 17 00:00:00 2001
From: Ivan Molodetskikh <yalterz@gmail.com>
Date: Thu, 28 Mar 2024 07:47:57 +0400
Subject: tty: Add check for zero gamma size

---
 src/handlers/mod.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/handlers')

diff --git a/src/handlers/mod.rs b/src/handlers/mod.rs
index 46ee79b6..24e386b4 100644
--- a/src/handlers/mod.rs
+++ b/src/handlers/mod.rs
@@ -448,6 +448,7 @@ impl GammaControlHandler for State {
 
     fn get_gamma_size(&mut self, output: &Output) -> Option<u32> {
         match self.backend.tty().get_gamma_size(output) {
+            Ok(0) => None, // Setting gamma is not supported.
             Ok(size) => Some(size),
             Err(err) => {
                 warn!(
-- 
cgit