From 8cdf87515b8c36e7831eb081faf23039208fb3cc Mon Sep 17 00:00:00 2001
From: Tomaz Canabrava <tcanabrava@kde.org>
Date: Sat, 18 Jul 2020 12:46:36 +0200
Subject: [PATCH] If the thumbnail fails to generate, print the reason on
 stderr

---
 src/Filter.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Filter.cpp b/src/Filter.cpp
index 7756e053..68c97258 100644
--- a/src/Filter.cpp
+++ b/src/Filter.cpp
@@ -728,7 +728,11 @@ void FileFilter::HotSpot::thumbnailRequested() {
 
     _previewJob = new KIO::PreviewJob(KFileItemList({fileItem()}), QSize(size, size));
     connect(_previewJob, &KIO::PreviewJob::gotPreview, this, &FileFilter::HotSpot::showThumbnail);
-    connect(_previewJob, &KIO::PreviewJob::failed, this, []{ QToolTip::hideText(); });
+    connect(_previewJob, &KIO::PreviewJob::failed, this, []{
+        qCDebug(KonsoleDebug) << "Error generating the preview" << _previewJob->errorString();
+        QToolTip::hideText();
+    });
+
     _previewJob->setAutoDelete(true);
     _previewJob->start();
 }