diff --git a/patches/patchinstall.sh b/patches/patchinstall.sh
index 2584b2bd..d2ed377f 100755
--- a/patches/patchinstall.sh
+++ b/patches/patchinstall.sh
@@ -435,6 +435,7 @@ patch_enable_all ()
 	enable_wined3d_buffer_create="$1"
 	enable_wined3d_check_format_support="$1"
 	enable_wined3d_glsl_ffp_vertex_lighting="$1"
+	enable_wined3d_wined3d_guess_gl_vendor="$1"
 	enable_winedbg_Process_Arguments="$1"
 	enable_winedevice_Fix_Relocation="$1"
 	enable_winemenubuilder_Desktop_Icon_Path="$1"
@@ -1544,6 +1545,9 @@ patch_enable ()
 		wined3d-glsl_ffp_vertex_lighting)
 			enable_wined3d_glsl_ffp_vertex_lighting="$2"
 			;;
+		wined3d-wined3d_guess_gl_vendor)
+			enable_wined3d_wined3d_guess_gl_vendor="$2"
+			;;
 		winedbg-Process_Arguments)
 			enable_winedbg_Process_Arguments="$2"
 			;;
@@ -8965,6 +8969,21 @@ if test "$enable_wined3d_glsl_ffp_vertex_lighting" -eq 1; then
 	) >> "$patchlist"
 fi
 
+# Patchset wined3d-wined3d_guess_gl_vendor
+# |
+# | This patchset fixes the following Wine bugs:
+# |   *	[#42538] Add check for GL_VENDOR = "Brian Paul" to detect Mesa
+# |
+# | Modified files:
+# |   *	dlls/wined3d/directx.c
+# |
+if test "$enable_wined3d_wined3d_guess_gl_vendor" -eq 1; then
+	patch_apply wined3d-wined3d_guess_gl_vendor/0001-wined3d-Also-check-for-Brian-Paul-to-detect-Mesa-gl_.patch
+	(
+		printf '%s\n' '+    { "Jarkko Korpi", "wined3d: Also check for '\''Brian Paul'\'' to detect Mesa gl_vendor.", 1 },';
+	) >> "$patchlist"
+fi
+
 # Patchset wined3d-CSMT_Main
 # |
 # | This patchset has the following (direct or indirect) dependencies:
diff --git a/patches/wined3d-wined3d_guess_gl_vendor/0001-wined3d-Also-check-for-Brian-Paul-to-detect-Mesa-gl_.patch b/patches/wined3d-wined3d_guess_gl_vendor/0001-wined3d-Also-check-for-Brian-Paul-to-detect-Mesa-gl_.patch
new file mode 100644
index 00000000..b27f9175
--- /dev/null
+++ b/patches/wined3d-wined3d_guess_gl_vendor/0001-wined3d-Also-check-for-Brian-Paul-to-detect-Mesa-gl_.patch
@@ -0,0 +1,25 @@
+From 5b080b413d64e68feeddfa6b843835a508ce2262 Mon Sep 17 00:00:00 2001
+From: Jarkko Korpi <jarkko_korpi@hotmail.com>
+Date: Tue, 16 May 2017 15:39:29 +0300
+Subject: wined3d: Also check for 'Brian Paul' to detect Mesa gl_vendor.
+
+As already done in wined3d_guess_card_vendor.
+---
+ dlls/wined3d/directx.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/dlls/wined3d/directx.c b/dlls/wined3d/directx.c
+index 7273d6cec10..6366fb2a16a 100644
+--- a/dlls/wined3d/directx.c
++++ b/dlls/wined3d/directx.c
+@@ -1783,6 +1783,7 @@ static enum wined3d_gl_vendor wined3d_guess_gl_vendor(const struct wined3d_gl_in
+         return GL_VENDOR_FGLRX;
+ 
+     if (strstr(gl_vendor_string, "Mesa")
++            || strstr(gl_vendor_string, "Brian Paul")
+             || strstr(gl_vendor_string, "X.Org")
+             || strstr(gl_vendor_string, "Advanced Micro Devices, Inc.")
+             || strstr(gl_vendor_string, "DRI R300 Project")
+-- 
+2.12.2
+
diff --git a/patches/wined3d-wined3d_guess_gl_vendor/definition b/patches/wined3d-wined3d_guess_gl_vendor/definition
new file mode 100644
index 00000000..f4f9f06f
--- /dev/null
+++ b/patches/wined3d-wined3d_guess_gl_vendor/definition
@@ -0,0 +1 @@
+Fixes: [42538] Add check for GL_VENDOR = "Brian Paul" to detect Mesa