diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5d018cb..ce42029 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1066,6 +1066,13 @@ jobs:
           make NOOPT=true SKIP_STRIPPING=true -j $(nproc)
       - name: Run Cardinal self-tests
         run: |
+          #xvfb-run valgrind \
+                #--gen-suppressions=all \
+                #--exit-on-first-error=yes \
+                #--error-exitcode=255 \
+                #--leak-check=no \
+                #--track-origins=yes \
+                #--suppressions=./dpf/utils/valgrind-dpf.supp
           xvfb-run ./bin/Cardinal selftest
       - name: Validate LV2 ttl syntax
         run: |
@@ -1082,7 +1089,7 @@ jobs:
           cp -r bin/CardinalFX.lv2 bin/CardinalSynth.lv2 \
               /usr/lib/lv2/{atom,buf-size,core,data-access,kx-control-input-port-change-request,kx-programs,instance-access,midi,mod,parameters,port-groups,port-props,options,patch,presets,resize-port,state,time,ui,units,urid,worker}.lv2 \
               ${LV2_PATH}
-          lv2lint -s lv2_generate_ttl -l ld-linux-x86-64.so.2 -M nopack $(lv2ls)
+          xvfb-run lv2lint -s lv2_generate_ttl -l ld-linux-x86-64.so.2 -M nopack $(lv2ls)
       - name: Test LV2 plugin
         run: |
             export LV2_PATH=/tmp/lv2-path
diff --git a/dpf b/dpf
index 71b1797..7b8eefb 160000
--- a/dpf
+++ b/dpf
@@ -1 +1 @@
-Subproject commit 71b17971f63dc9def67faea500dcbaced979efb4
+Subproject commit 7b8eefb59f62dd51e08cdda5c33478781eccb072