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running.md: Mention about issue with Nahimic on Windows

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Let people know that they will need to use GTK with the Nahimic service
disabled or OpenGL disabled or put their GTK application into the Nahimic
backlist, or try to use GLES, since there is a known issue in the Windows
nVidia graphics drivers and Nahimic that causes GL operations to fail,
causing crashes in operations such as window resizes.

This will close issue #4113--sadly, there is nothing we can do within
GTK to fix the issue.
This commit is contained in:
Chun-wei Fan 2022-08-01 12:10:15 +08:00
parent a48942bf39
commit f2b85fa1c7
1 changed files with 14 additions and 0 deletions
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docs/reference/gtk/running.md
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@ -339,6 +339,20 @@ using and the GDK backend supports them:
`vulkan`
: Selects the Vulkan renderer
Note that on Windows, if one is running Nahimic 3 on a system with
nVidia graphics, one needs to stop the "Nahimic service" or insert
the GTK application into the Nahimic blacklist, as noted in
https://www.nvidia.com/en-us/geforce/forums/game-ready-drivers/13/297952/nahimic-and-nvidia-drivers-conflict/2334568/, or use the cairo renderer (at the cost of being unable to use
OpenGL features), or use GDK_DEBUG=gl-gles if you know that GLES
support is enabled for the build.
This is a known issue, as the above link indicates, and affects quite
a number of applications--sadly, since this issue lies within the
nVidia graphics driver and/or the Nahimic 3 code, we are not able
to rememdy this on the GTK side; the best bet before trying the above
workarounds is to try to update your graphics drivers and Nahimic
installation.
### `GTK_CSD`
The default value of this environment variable is `1`. If changed