[radeonsi]Qt Applications won't start on the dedicated GPU (SIGABRT)
Submitted by Paul
Assigned to Default DRI bug account
Description
Created attachment 115334 GLXINFO of radeon
Hi, I was trying to test the new kdenlive development build I noticed that it wouldn't even start with DRI_PRIME=1 kdenlive. I immediatedly got a SIGABRT Same happened with an easy example program from the Qt project "openglunderqml"
"LANG=C R600_DEBUG=cs DRI_PRIME=1 QSG_INFO=1 '/home/paul/hybrid test/build-openglunderqml-Desktop-Debug/openglunderqml'
QML debugging is enabled. Only use this in a safe environment.
openglunderqml: dri2.c:518: dri2_allocate_textures: Assertion `drawable->textures[statt]' failed.
Abgebrochen (Speicherabzug geschrieben)"
As Xonotic worked more or less ok on the radeon I filed a bug report at the Qt project https://bugreports.qt.io/browse/QTBUG-45686 Laszlo Agocs from the Qt project states the following: "Might be a difficult one and not just because we lack any such hw to test on. Cannot do much when glXMakeCurrent() crashes deep inside the driver. Any chance for a backtrace with symbols? In the absence of that running with QSG_INFO=1 could be helpful too. Anyway, it's most likely happening in QGLXContext::queryDummyContext() where we attempt to make a pbuffer surface current in order to query a few GL things. Other apps may not rely on pbuffers and thus may not exhibit the issue."
I'm not a programmer so please go easy on me. If you need additional info let me know (and maybe tell me how to fetch it for you ;) )
Thanks!
Hardware: HP EliteBook 850 G1 with Intel (HD4400) / AMD (HD8750M, OLAND) hybrid graphics Software: ArchLinux (Antergos) Linux 3.19.3 mesa 10.5.4 Intel / Radeon exact glxinfo outputs are attached Qt 5.4.1
Attachment 115334, "GLXINFO of radeon":
glxinfo-radeon.log
Version: 10.5