Bug 351730 - Getting numerous errors from Konsole: "QXcbConnection: XCB error: 8 (BadMatch), sequence: 50336, resource id: 115343659, major code: 130 (Unknown), minor code: 3"
Summary: Getting numerous errors from Konsole: "QXcbConnection: XCB error: 8 (BadMatch...
Status: RESOLVED NOT A BUG
Alias: None
Product: kdenlive
Classification: Applications
Component: User Interface & Miscellaneous (show other bugs)
Version: unspecified
Platform: Kubuntu Linux
: NOR minor
Target Milestone: ---
Assignee: Jean-Baptiste Mardelle
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-08-24 22:32 UTC by Unknown
Modified: 2016-09-05 16:35 UTC (History)
6 users (show)

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Description Unknown 2015-08-24 22:32:01 UTC 
Not sure if this is a big issue or not, but if it's affecting performance and usuability in a way that I'm not aware of, then I guess it'd be helpful to send this along. :)

Getting numerous errors when running Kdenlive 15.08 from Konsole. Most of them run in numeric sequence like this:

QXcbConnection: XCB error: 8 (BadMatch), sequence: 27021, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 27046, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 27068, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 27135, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 34948, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 34976, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 35007, resource id: 115343659, major code: 130 (Unknown), minor code: 3
Xlib: sequence lost (0x21b141 > 0x20b152) in reply type 0x23!
QXcbConnection: XCB error: 8 (BadMatch), sequence: 50336, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 50361, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 50383, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 50412, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 50438, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 50498, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 50559, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 50621, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 50682, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 50743, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 50805, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 50866, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 50927, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 50988, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51050, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51111, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51135, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51148, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51196, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51220, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51233, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51283, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51307, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51321, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51337, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51350, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51399, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51461, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51522, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51584, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51645, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51706, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51768, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51829, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51891, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 51952, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 52013, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 52074, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 52091, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 52158, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 52227, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 52293, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 52360, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 52428, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 52495, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 52561, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 52626, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 52691, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 52754, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 52819, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 52885, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 53406, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 53432, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 53526, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 53568, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 53782, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 53912, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 53940, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 55547, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 55572, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 55594, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 55643, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 55721, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 55797, resource id: 115343659, major code: 130 (Unknown), minor code: 3
[producer avformat-novalidate] /home/travlr/Ad-freeze rendered video files/Cam 6 - complete.mp4
     WILD TIMESTAMP!
QXcbConnection: XCB error: 8 (BadMatch), sequence: 59677, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 59702, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 59724, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 59750, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 62504, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 62530, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 62624, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 62660, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 63114, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 63145, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 63222, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 7058, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 7083, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 7120, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 24920, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 24945, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 24967, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 6613, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 6638, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 6666, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 43317, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 43342, resource id: 115343659, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 43364, resource id: 115343659, major code: 130 (Unknown), minor code: 3
Segmentation fault (core dumped)


Reproducible: Always

Steps to Reproduce:
1. Run Kdenlive from Konsole
2. Perform various edits and playback, then observe results



Running Kdenlive 15.08 on Kubuntu 15.04 x64 w/ KDE Plasma 5.3.2 via backports ppa.
Comment 1 Eric Fontaine 2015-11-06 14:47:47 UTC 
I get the similar errors on my konsole:

QXcbConnection: XCB error: 8 (BadMatch), sequence: 28791, resource id: 12583595, major code: 130 (Unknown), minor code: 3

Multiple errors with different sequence numbers.  I've tried all versions from 15.04 through 15.09.0 (self-compiled from git master today).  I'm on arch linux x86-64 running kde.

I also have a random crash which I can't figure out why, but sometimes happens when I move add or delete tracks or when I move the play cursor and resume playback.  Saving works fine, and recovering from autosave always works, so I can make progress on editing.
Comment 2 Eric Fontaine 2015-11-06 16:21:49 UTC 
I've just tried switching from using KDE as desktop environment to LXDE, and that QXcbConnection error message goes away.

I now have a fair amount of "Trying to convert empty KLocalizedString to QString." error messages appear on the terminal, but those seem to be benign.

I still appear to have a random freeze-crash happen when moving cursor around, so I guess my freeze-crash is a separate issue from the QXcbConnection error messages.
Comment 3 John Stanley 2015-12-20 23:25:16 UTC 
With frameworks 5.17.0, plasma 5.51, and kdenlive-5.12.0 (self-compiled) I'm also seeing the

QXcbConnection: XCB error: 8 (BadMatch), sequence: 8480, resource id: 62914723, major code: 154 (Unknown), minor code: 11

errors when running kdenlive from konsole. They occur whenever the mouse cursor is positioned at the edge of a docWidget ("Project Bin", "Effects", "Clip Monitor", "Project Monitor", and probably others) when the vertical or horizontal 'resize' icon appears. If the cursor is held fixed with the 'resize' icon showing, the QXcbConnection: XCB error messages are generated continuously without end until the cursor is moved away from the 'resize' area. No right/left cursor clicks are involved, just cursor movements.
Comment 4 Elvis Stansvik 2016-02-24 10:23:53 UTC 
I'm seeing the same problem in a PyQt5 application I'm working on right now, so it's not specific to kdenlive. I get exactly three of these errors when the cursor changes into a resize handle at the edge of a QDockWidget. I can't get it to spout it continously though, like John describes.

My environment is and up-to-date Kubuntu 15.10 with backports repositories enabled. I'm running my app under Plasma 5.
Comment 5 Unknown 2016-03-30 16:39:23 UTC 
Being that it's not specific to Kdenlive, then it's not a Kdenlive bug. So, I'm going to close this bug.
Comment 6 Gustav Ekner 2016-09-05 16:35:07 UTC 
I have this problem as well on Ubuntu 16.04 with Unity. It occurs just by moving the mouse between the timeline, project bin, properties and clip monitor.