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Kdenlive/Manual/Windows Issues
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== Windows Issues ==
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The current '''Kdenlive''' on Windows® (April 2020, version 20.04.0) has a few issues that have workarounds. The purpose of this wiki page is to document these issues and their workarounds.
===Render problems===
After rendering you get de-synced audio or wrong effects or black frames at end of the last clip: download version 20.08.1 or higher from the [https://kdenlive.org/en/download download page]. If you still experience problems see [[Special:myLanguage/Kdenlive/Manual/Windows_Issues#Cannot_open_projects_made_with_previous_version|Cannot open projects]].
===Audio crackling while playback===
Hit <keycap>CTRL + SHIFT + ,</keycap>(comma), select <menuchoice>Playback -> audio backend</menuchoice> and play around with <menuchoice>WinMM</menuchoice> (Win7), <menuchoice>Wasapi</menuchoice> (Win10), <menuchoice>DirectSound</menuchoice> to see what give the best result.
===This application failed to start because no Qt platform plugin could be initialized===
Hit <keycap>CTRL + SHIFT + ,</keycap>(comma) → <menuchoice>environment</menuchoice> → make sure the paths point to the same path as "MLT profiles folder".
Download [https://bugs.kde.org/show_bug.cgi?id=415408 qt.conf]. Put the file <tt>qt.conf</tt> into the "bin" folder (the folder where <tt>kdenlive.exe</tt> is)
This issue should be solved with Windows version 19.04.2-6. That <tt>kdenliverc</tt> is correct set up please start Kdenlive twice (start -> close -> start). Then start your work.
Updated Intel graphic driver versions lead to a corrupted Kdenlive GUI.<br>
'''Solution 1:''' Open Kdenlive. Move the mouse to the top. The menus are showing up. Try to reach <menuchoice>Settings</menuchoice> -> <menuchoice>openGL backend</menuchoice> -> enable <menuchoice>OpenGLES</menuchoice>/<menuchoice>DirectX</menuchoice>. Restart Kdenlive. This should solve your Intel graphic driver issue. <br>
Maybe this statement helps: https://forum.kde.org/viewtopic.php?f=265&t=161309#p425882.<br> <br>
'''Solution 2:''' Press <keycap>Win + R</keycap> (<keycap>Windows</keycap> key and <keycap>R</keycap> key simultaneously) and type '''appdata'''. Go to <tt>local</tt> and within it open <tt>kdenliverc</tt> with an editor. Search for <code>[misc]</code> and delete <code>[misc]</code> and the following entry. <br>Example:<br> <code>[misc]<br> opengl_backend=15</code><br> Save and close <tt>kdenliverc</tt>. Restart Kdenlive.
Go to: <menuchoice>Settings</menuchoice> -> <menuchoice>Style</menuchoice> and choose <menuchoice>Default</menuchoice> or <menuchoice>Windows</menuchoice>.
Go to: <menuchoice>settings</menuchoice> -> untick <menuchoice>force breeze icon theme</menuchoice>. Kdenlive restarts and you should see the icons.
If this is not solving the problem: Press <keycap>Win + R</keycap> (<keycap>Windows</keycap> key and <keycap>R</keycap> key simultaneously) and type '''appdata'''. Go to <tt>local</tt> and within it rename <tt>kdenliverc</tt> to <tt>kdenliverc.old</tt>. Start Kdenlive -> do nothing -> close Kdenlive -> and restart Kdenlive again.
If you have still problems delete proxy clips and other cached data by going to <menuchoice>Project</menuchoice> menu → <menuchoice>Project Setting</menuchoice> → <menuchoice>Cache Data</menuchoice> tab → there you can delete cached data.
If you have still problems try [[Special:myLanguage/Kdenlive/Manual/Windows_Issues#Any_critical_bug|Any critical bug]].
Most probably you got a major Win10 update (i.e 1809). If so you have to update all drivers for audio and video.
Intel driver can be updated with this updater: https://downloadcenter.intel.com/en/download/28425/Intel-Driver-Support-Assistant.
This bug can appear if you do a clean reinstall of '''Kdenlive''' (see above). Simply close and open '''Kdenlive''' once, and it should be fixed.
Additionally this can be a problem either with the <tt>kdenliverc</tt> file (see here [[Special:myLanguage/Kdenlive/Manual/Windows_Issues#Cannot_open_projects_made_with_previous_version|Cannot open projects]]) or you have some mismatch in the "local" folder (see here [[Special:myLanguage/Kdenlive/Manual/Windows_Issues#Any_critical_bug|Any critical bug]]).
Access the '''Appdata''' folder (<keycap>Win + R</keycap> and then type '''APPDATA''' in full caps). Go to <tt>local</tt> and search for folder <tt>kdenlive</tt>.
{{Note|If you have any saved effects or clips stored in your library, make a backup of the library folder.}}
Reinstall the latest version of '''Kdenlive''' from the [https://kdenlive.org/en/download download page]
This issue should be solved with Windows version 19.04.0. If not convert the JPG to PNG and it renders correctly.
This issue is solved with Windows version 18.08.2 (30. Oct 2018). Get the current version from the [https://kdenlive.org/en/download download page].
Hit <keycap>CTRL + SHIFT + ,</keycap>(comma) → <menuchoice>environment</menuchoice> → make sure the paths point to the same path as "MLT profiles folder".
When switching from kdenlive for windows 17.12 → 18.04/18.08, a Qt rendering crash appears. To make sure this doesn't happen, you need to edit the <tt>kdenliverc</tt> file in the <tt>appdata/local</tt> folder. To access your appdata, press <keycap>Win + R</keycap> (<keycap>Windows</keycap> key and <keycap>R</keycap> key simultaneously) and type '''appdata'''. Go to <tt>local</tt> and within it rename <tt>kdenliverc</tt> to <tt>kdenliverc.old</tt>.
This issue is solved with Windows version 18.12.1. Get the current version from the [https://kdenlive.org/en/download download page].
If you want to reinstall '''Kdenlive''' or re-run '''Kdenlive''', it may tell you "The file or folder is open in another program". Windows® then won't let you delete or re-run '''Kdenlive'''.
To fix this you have to kill the running process: press and hold <keycap>Ctrl + Shift + Esc</keycap> & expand the task manager by clicking <menuchoice>all details</menuchoice>. Then find <tt>kdenlive.exe</tt> & <tt>dbus-daemon.exe</tt>, and click <menuchoice>End task</menuchoice> for both of them.
Or download the [[file:Kdenlive-kill.zip]]. Unpack it and just double-click the batch file which kills all running '''Kdenlive''' processes.
If the uninstaller doesn't work you can delete following folder: {{Path|C:\Program Files\kdenlive}}.
You have to manually delete in the start menu the Kdenlive folder.
Get all newest Windows® updates. Afterwards, update your graphic card driver and your sound card driver and your printer driver.
Some crashes could occur of incompatibility of the graphics card and sound card with the newest Windows®10 updates (18.09 update).
After you have updated the drivers re-start the computer and try again by starting <tt>kdenlive.exe</tt>.
If this is not solving the problem switch your standard printer to “Microsoft XPS Document Writer” and try again to start Kdenlive.
Delete the <tt>kdenliverc</tt> file as descript here under [[Special:myLanguage/Kdenlive/Manual/Windows_Issues#Qt_rendering_crash|Qt rendering crash]].
Make sure you set processing thread to 1: <keycap>Ctrl+Shift+, (comma)</keycap> → <menuchoice>Environment</menuchoice> → <menuchoice>Processing thread</menuchoice> → set to 1
The current '''Kdenlive''' version (November 2018, version 18.08.3) has a few issues that have workarounds.
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