This seems like a fairly harmless change, so I have added it to the Chimera code. In the daily build only (starting tomorrow). --Eric
On Jun 9, 2025, at 11:01 AM, Ben Webb via Chimera-users <chimera-users@cgl.ucsf.edu> wrote:
On 6/2/25 5:45 PM, Ben Webb wrote:
RedHat Enterprise Linux 10 has dropped Xorg in favor of Wayland, and Fedora 43 will likely do the same. Fedora 42 already uses Wayland by default. Is Chimera expected to work with Wayland? ChimeraX works fine in our environment with Wayland, but I have folks that still want to use Chimera. And they're getting a Togl failure at startup: "Display misconfiguration. Please increase the color quality (24 bit color or greater), update your display (graphics) driver, and/or upgrade your graphics card. Also see chimera installation instructions."
Following up for others in the same situation: there is a simple workaround to make Chimera work on Linux with Wayland and the NVIDIA drivers: simply edit share/OpenGLDebug/__init__.py and change the line that reads
graphics = Togl.Togl(parent, width=1, height=1)
to instead read
graphics = Togl.Togl(parent, width=1, height=1, double=True)
i.e. the failure appears to be due a lack of support for single-buffered windows. But fortunately the main Chimera window is double-buffered anyway, so it's only the initial graphics check that was failing.
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