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URL: https://www.phoronix.com/news/COSMIC-Epoch-1.0.15

⇱ COSMIC Now Implements Wayland Pointer Constraints For Better Gaming Experience - Phoronix


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COSMIC Now Implements Wayland Pointer Constraints For Better Gaming Experience

Written by Michael Larabel in Desktop on 3 June 2026 at 02:53 PM EDT. 42 Comments
COSMIC Epoch 1.0.15 was released today and while it doesn't yet contain the new "Frosted Glass" option for the desktop UI, COSMIC Epoch 1.0.15 does contain some other notable enhancements.

COSMIC Epoch 1.0.15's compositor now implements Wayland's pointer constraints protocol. This should notable fix some cursor issues in various games running on the COSMIC desktop. For first person shooters and third-person games the pointer constraints protocol is needed for proper mouse control behavior. Up until now COSMIC gamers frequently relied on the Gamescope compositor for a better experience due to the lack of pointer constraints.

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The COSMIC compositor also now supports multiple full-screen windows per workspace, which fixes issues encountered under Steam's BIg Picture mode. Separately, the compositor also now follows the focus after Alt-Tab'ing to another output.

Today's COSMIC update also fixes some keyboard shortcut issues, various applet fixes, Wayland context menu fixes, re-using loaded fonts within the SVG renderer for the COSMIC launcher, fixing the brightness on-screen display, a playback speed configuration option for the COSMIC Player, and other fixes.

The full list of changes for today's COSMIC Epoch 1.0.15 release can be found via

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.