diff --git a/hw/xbox/nv2a/pgraph/gl/draw.c b/hw/xbox/nv2a/pgraph/gl/draw.c
index 94e9beb50b0..8b1002e70d9 100644
--- a/hw/xbox/nv2a/pgraph/gl/draw.c
+++ b/hw/xbox/nv2a/pgraph/gl/draw.c
@@ -321,8 +321,10 @@ void pgraph_gl_draw_begin(NV2AState *d)
     if (!anti_aliasing && pgraph_reg_r(pg, NV_PGRAPH_SETUPRASTER) &
                               NV_PGRAPH_SETUPRASTER_LINESMOOTHENABLE) {
         glEnable(GL_LINE_SMOOTH);
+        glLineWidth(MIN(r->supportedSmoothLineWidthRange[1], pg->surface_scale_factor));
     } else {
         glDisable(GL_LINE_SMOOTH);
+        glLineWidth(MIN(r->supportedAliasedLineWidthRange[1], pg->surface_scale_factor));
     }
     if (!anti_aliasing && pgraph_reg_r(pg, NV_PGRAPH_SETUPRASTER) &
                               NV_PGRAPH_SETUPRASTER_POLYSMOOTHENABLE) {
diff --git a/hw/xbox/nv2a/pgraph/gl/renderer.c b/hw/xbox/nv2a/pgraph/gl/renderer.c
index 9e22a80f6d5..0e557c2dc8e 100644
--- a/hw/xbox/nv2a/pgraph/gl/renderer.c
+++ b/hw/xbox/nv2a/pgraph/gl/renderer.c
@@ -38,6 +38,7 @@ static void pgraph_gl_init(NV2AState *d, Error **errp)
     PGRAPHState *pg = &d->pgraph;
 
     pg->gl_renderer_state = g_malloc0(sizeof(*pg->gl_renderer_state));
+    PGRAPHGLState *r = pg->gl_renderer_state;
 
     /* fire up opengl */
     glo_set_current(g_nv2a_context_render);
@@ -51,6 +52,9 @@ static void pgraph_gl_init(NV2AState *d, Error **errp)
     /*  Internal RGB565 texture format */
     assert(glo_check_extension("GL_ARB_ES2_compatibility"));
 
+    glGetFloatv(GL_SMOOTH_LINE_WIDTH_RANGE, r->supportedSmoothLineWidthRange);
+    glGetFloatv(GL_ALIASED_LINE_WIDTH_RANGE, r->supportedAliasedLineWidthRange);
+
     pgraph_gl_init_surfaces(pg);
     pgraph_gl_init_reports(d);
     pgraph_gl_init_textures(d);
diff --git a/hw/xbox/nv2a/pgraph/gl/renderer.h b/hw/xbox/nv2a/pgraph/gl/renderer.h
index 14160b21b79..0ca124c3fce 100644
--- a/hw/xbox/nv2a/pgraph/gl/renderer.h
+++ b/hw/xbox/nv2a/pgraph/gl/renderer.h
@@ -229,6 +229,9 @@ typedef struct PGRAPHGLState {
         GLint pvideo_color_key_loc;
         GLint palette_loc[256];
     } disp_rndr;
+
+    GLfloat supportedAliasedLineWidthRange[2];
+    GLfloat supportedSmoothLineWidthRange[2];
 } PGRAPHGLState;
 
 extern GloContext *g_nv2a_context_render;