File gkrellm-cpufreq-couple-controls.patch of Package gkrellm-cpufreq

Index: cpufreq.c
===================================================================
--- cpufreq.c.orig	2014-01-06 17:47:41.798749821 +0100
+++ cpufreq.c	2014-01-06 18:01:04.797093550 +0100
@@ -195,9 +195,9 @@
   system(cmd);
 }
 
-static void governor_userspace(unsigned int cpu) {
+static void set_governor(unsigned int cpu, const char *gov) {
   char cmd[length];
-  sprintf(cmd, "sudo cpupower -c %u frequency-set -g userspace", cpu);
+  sprintf(cmd, "sudo cpupower -c %u frequency-set -g %s", cpu, gov);
   system(cmd);
 }
 
@@ -321,10 +321,10 @@
         if (controls_coupled) {
           unsigned int icpu;
           for ( icpu=0; icpu<ncpu; ++icpu ) {
-            governor_userspace(icpu);
+            set_governor(icpu, "userspace");
           }
         } else {
-          governor_userspace(cpu);
+          set_governor(cpu, "userspace");
         }
       }
       if (controls_coupled) {
@@ -383,8 +383,21 @@
       /* toggle governor */
       if(controls_coupled) {
         unsigned int icpu;
-        for ( icpu=0; icpu<ncpu; ++icpu ) {
-          next_governor(icpu);
+        /* figure out if all governors have the same value */
+        for ( icpu=0; icpu<ncpu-1; ++icpu ) {
+          if (strcmp(governor[icpu], governor[icpu+1]) != 0)
+            break;
+        }
+        /* if yes, next_governor for each */
+        if (icpu == ncpu-1) {
+          for ( icpu=0; icpu<ncpu; ++icpu ) {
+            next_governor(icpu);
+          }
+        /* if not, align all governors according to cpu0's */
+        } else {
+          for ( icpu=1; icpu<ncpu; ++icpu ) {
+            set_governor(icpu, governor[0]);
+          }
         }
       } else {
         next_governor(cpu);
@@ -440,7 +453,9 @@
         -1,     /* x = -1 places at left margin */
          y,     /* y = -1 places at top margin */
         -1);    /* w = -1 makes decal the panel width minus margins */
-    if (gov_enable && (!controls_coupled || cpu==0) ) {
+    /* display governors unconditionally, even if controls_coupled */
+    /* because governor can be changed from other tool */
+    if ( gov_enable ) {
       governor_text[cpu] = governor[cpu];
       y = text_decal_gov[cpu]->y + text_decal_gov[cpu]->h + 1;
     } else {