diff --git a/Readme.md b/Readme.md
index 7b38d957d..79128bc10 100644
--- a/Readme.md
+++ b/Readme.md
@@ -2,13 +2,13 @@
 Funcube Dongle
 ==============
 
-Funcube Dongle Pro+ support will need "libasound2-dev" installed. ("libhid" is now built from source). Install the rules file "fcdpp.rules" in "/etc/udev/rules.d" to gain the "root access" needed to control the dongle.
+Funcube Dongle Pro+ support will need "libasound2-dev" installed. ("libhid" is built from source). Install the rules file "fcdpp.rules" in "/etc/udev/rules.d" to gain the "root access" needed to control the dongle.
 
-Funcube Dongle ProPlus support is broken on recent hardware / kernels. It only works well for me with an Atom Chipset, which has Full Speed USB ports. On my Desktop Intel chipset it needs kernel 3.2, available with Debian 7 "wheezy" or Ubuntu 12.4. Ubuntu 12.10 uses kernel 3.5, which might work with the FCDPP.
+Funcube Dongle Pro+ USB drivers are broken on some hardware with recent kernels. It works well for me with an Atom Chipset, which has Full Speed USB ports, or a "Valleyview" Chromebook (kernel 3.10). A Desktop with the "same" chipset needs kernel 3.2, available with Debian 7 "wheezy". YMMV.
 
 
 ==========
-For Ubuntu:
+For Ubuntu
 ==========
 
 "sudo apt-get install libqt5multimedia5-plugins qtmultimedia5-dev qttools5-dev qttools5-dev-tools libqt5opengl5-dev qtbase5-dev libusb-1.0 librtlsdr-dev"
@@ -23,7 +23,7 @@ The Gnuradio plugin source needs extra packages, including "liblog4cpp-dev libbo
 
 
 ============
-For Debian 7:
+For Debian 8
 ============
 
 Debian 7 "wheezy" uses Qt4. Qt5 is available from the "wheezy-backports" repo, but this will remove Qt4.
@@ -36,8 +36,6 @@ Debian 7 "wheezy" uses Qt4. Qt5 is available from the "wheezy-backports" repo, b
 Known Issues
 ============
 
-Possible compiler/linker  bug when building with "make -j2"
-
 FM is mostly untested.
 
 RTL frontend will have bad aliasing in noisy environments.
diff --git a/plugins/samplesource/gnuradio/gnuradiogui.ui b/plugins/samplesource/gnuradio/gnuradiogui.ui
index fe1aaef82..9053e7847 100644
--- a/plugins/samplesource/gnuradio/gnuradiogui.ui
+++ b/plugins/samplesource/gnuradio/gnuradiogui.ui
@@ -156,6 +156,10 @@
        </property>
       </widget>
      </item>
+     <item>
+      <widget class="QSlider" name="sldGain">
+      </widget>
+     </item>
      <item>
       <widget class="QSlider" name="sldFreqCorr">
        <property name="minimum">