[Bug 981358] New: Sometimes flickering of menus
http://bugzilla.novell.com/show_bug.cgi?id=981358 Bug ID: 981358 Summary: Sometimes flickering of menus Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: x86-64 OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: X.Org Assignee: xorg-maintainer-bugs@forge.provo.novell.com Reporter: robby.engelmann@igfs-ev.de QA Contact: xorg-maintainer-bugs@forge.provo.novell.com Found By: --- Blocker: --- Sometimes I can see flickering of menus in different programs. I see it in firefox but also plasma menus running TW snapshot 20160523 after some updates of xcb-packages. In xsession.errors I can see this: QXcbConnection: XCB error: 2 (BadValue), sequence: 48562, resource id: 18874508, major code: 142 (Unknown), minor code: 3 QXcbConnection: XCB error: 2 (BadValue), sequence: 48566, resource id: 117440516, major code: 142 (Unknown), minor code: 3 QXcbConnection: XCB error: 2 (BadValue), sequence: 48653, resource id: 18874508, major code: 142 (Unknown), minor code: 3 kdeinit5: Got EXT_EXEC '/usr/bin/dolphin' from launcher. kdeinit5: preparing to launch '/usr/bin/dolphin' QXcbConnection: XCB error: 3 (BadWindow), sequence: 27051, resource id: 125829120, major code: 18 (ChangeProperty), minor code: 0 no winId: probably startup task QXcbConnection: XCB error: 3 (BadWindow), sequence: 27055, resource id: 125829121, major code: 18 (ChangeProperty), minor code: 0 Cannot creat accessible child interface for object: PlacesView(0x2193b10) index: 18 no winId: probably startup task -- You are receiving this mail because: You are on the CC list for the bug.
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Robby Engelmann
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Egbert Eich
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Robby Engelmann
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Egbert Eich
I do not think that flickering in menus only sometimes is the same like flickering throughout the whole desktop everytime. I would guess that this time the xcb-update in the not yet released 20160523 is to blame. On my system all other "flickering" was resolved since 20160520 with 4.6 kernel from Kernel:stable repo.
I personally don't expect libxcb to cause flickering. Of course I have not seen what you call flickering. Right now, we have nothing to go by but your claim that it is libxcb that caused it: To verify, did you try to downgrade to libxcb-1.11.1? -- You are receiving this mail because: You are on the CC list for the bug.
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--- Comment #4 from Robby Engelmann
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--- Comment #5 from Egbert Eich
It was only a guess for now and only based on the xsession errors I found logged. Was there another package checked-in for 20160523 related to the graphics stack?
I don't know! As you mentioned yourself 20160523 is not yet available. However it would be quite convenient for you to find out checking /var/log/zypp/history
The bad thing for hunting down: it only occurs quite rare and my feeling is that it may be more often when cpu is working heavily. The good thing for me: it only occurs quite rare :-)
This doesn't really sound like libxcb but who knows?
What is the best way to downgrade the multiple libxcb-packages in one run?
I'd probably branch off the previous version in OBS, let it build for TW and add the installation repo. Then 'zypper dup -r <repo> --allow-downgrade' should do the job. -- You are receiving this mail because: You are on the CC list for the bug.
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--- Comment #6 from Egbert Eich
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--- Comment #7 from Robby Engelmann
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--- Comment #8 from Robby Engelmann
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--- Comment #9 from Egbert Eich
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--- Comment #10 from Robby Engelmann
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--- Comment #11 from Robby Engelmann
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--- Comment #12 from Robby Engelmann
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--- Comment #13 from Egbert Eich
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