COSMIC Epoch 1.5 Brings More Fixes & Improvements To System76's Desktop

Written by Michael Larabel in Desktop on 29 July 2026 at 08:21 PM EDT. 12 Comments
DESKTOP
The System76 and Pop!_OS developers continue quickly iterating on their Rust-based COSMIC desktop environment.

Just a week since their COSMIC Epoch 1.4 with COSMIC Monitor improvements and fixes, COSMIC Epoch 1.5 is now available. COSMIC 1.5 now makes use of EXIF orientation data for the COSMIC background handling, the COSMIC Compositor fixes an issue with Chromium-based apps breaking with below 1.0 fractional scaling, better handling by the compositor during GPU resets, and the COSMIC Greeter can now use the cosmic-keymap-unstable-v1 Wayland protocol.

COSMIC frosted glass


COSMIC Epoch 1.5 also brings various fixes to COSMIC Panel, including for the recently added Frosted Glass effect. There is also a COSMIC Panel fix for high CPU usage when the screen is locked.

Plus there are a wide variety of other fixes in COSMIC Epoch 1.5 as outlined on GitHub.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.

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