The recent commit a563f530 - "glamor/glxprov: Stop exposing non-db
(-capable) configs" was aiming at reducing the number of advertised
visuals for optimizing GLX initialization.
Unfortunately, GL applications which rely exclusively on single-buffered
visuals will fail to find a suitable visual with this.
Revert the commit to expose the single-buffered visuals and restore the
compatibility with applications which rely on single-buffered configs.
This reverts commit a563f530f6
Signed-off-by: Konstantin <ria.freelander@gmail.com>
10d7fa53f8