diff --git a/src/calibre/devices/smart_device_app/driver.py b/src/calibre/devices/smart_device_app/driver.py
index 84cf7ed6f0..91cf27eca7 100644
--- a/src/calibre/devices/smart_device_app/driver.py
+++ b/src/calibre/devices/smart_device_app/driver.py
@@ -1381,6 +1381,8 @@ class SMART_DEVICE_APP(DeviceConfig, DevicePlugin):
             cq = int(self.settings().extra_customization[self.OPT_COMPRESSION_QUALITY])
             if cq < 50 or cq > 99:
                 compression_quality_ok = False
+            else:
+                self.THUMBNAIL_COMPRESSION_QUALITY = cq
         except:
             compression_quality_ok = False
         if not compression_quality_ok:
diff --git a/src/calibre/gui2/library/models.py b/src/calibre/gui2/library/models.py
index 182fd6866d..1345ae24cd 100644
--- a/src/calibre/gui2/library/models.py
+++ b/src/calibre/gui2/library/models.py
@@ -111,6 +111,8 @@ class ColumnIcon(object):  # {{{
                     d = os.path.join(config_dir, 'cc_icons', icon)
                     if (os.path.exists(d)):
                         bm = QPixmap(d)
+                        bm = bm.scaled(128, 128, aspectRatioMode= Qt.KeepAspectRatio,
+                                       transformMode=Qt.SmoothTransformation)
                         icon_bitmaps.append(bm)
                         total_width += bm.width()
                 if len(icon_bitmaps) > 1: