[Slackbuilds-users] zoom-linux crash

[Kevin McCormick]

For the curious, I have resolved the situation for now by removing the
nvidia drivers and also blacklisting nouveau.  This leaves only the
intel i915 driver using the integrated intel graphics (HD4600).  So the
nvidia GT 730M is unused.  This notebook uses Optimus technology,
meaning the nvidia card cannot be used independently of the intel
integrated GPU.  I am hoping that using only the intel GPU will give
acceptable screen quality.  For this Thinkpad T440p, the nvidia-driver
should probably be  nvidia-legacy390, built with GLVND="no" and also use
the "pass-through" xorg settings from 
http://us.download.nvidia.com/XFree86/Linux-x86_64/390.132/README/randr14.html. 
I think my issues were caused by the nvidia OpenGL replacement libraries
not working with Qt5.

On 3/22/20 1:16 PM, Kevin McCormick wrote:
> Further information: removed the nvidia-kernel and nvidia-driver
> packages(440.59) and xf86-video-nouveau-blacklist package.  Now
> zoom-linux and kde seem to run fine.  Problem is display quality is
> far lower than when nvidia was installed.  Apparently, xorg was
> unloading nvidia and loading nouveau regardless of blacklist, shown in
> Xorg.0.log, but the nvidia libraries are so much better.  When I used
> /etc/X11/xorg.conf.d/10-nvidia.conf there was a crash with X
> regardless of window manager, so the issue is plainly using the wrong
> nvidia driver.  When I tried to manually use the NVIDIA-Linux***.run
> program, it claimed there was a kernel module present, so I halted at
> that point.   The nvidia README lists possible library conflicts,
> which is a problem for me.  How does one package the 418.1130 driver
> and is nvidia-switch necessary?
>
> On 3/22/20 7:58 AM, Kevin McCormick wrote:
>> I should also add that kde will not start.  The splash screen
>> appears, but then crashes to a black screen with the cursor in the
>> upper left and no keyboard or mouse response.  Computer must be
>> powered off by pressing the power button for 4 sec.  I tried "export
>> KDE_DEBUG=True" but cannot find a dump file.  Using fluxbox is fine.
>>
>> On 3/21/20 7:27 PM, Kevin McCormick wrote:
>>> A little more investigation reveals that the recommended driver for
>>> Geforce GT 730M is 418.1130,  I have 440,59 installed now.
>>>
>>>
>>> On 3/21/20 5:29 PM, Kevin McCormick wrote:
>>>> My computer:  Thinkpad T440p 
>>>> Slackware 14.2 with many packages from SBo.
>>>> video: Nvidia GeForce GT 730M and Intel i5-4200M with GPU
>>>> I mention the video because it may have something to do with the
>>>> problem.
>>>>
>>>> zoom-linux gives a flash on the screen and crashes.
>>>>
>>>> $ zoom-linux &
>>>> . . .
>>>> Graphics Card Info::
>>>> Zoom package arch is 64bit, runing OS arch is x86_64
>>>> AppIconMgr::systemDesktopName log Desktop Name: 
>>>> QGLXContext: Failed to create dummy context
>>>> qt.scenegraph.general: QSG: basic render loop
>>>> qt.scenegraph.general: Using sg animation driver
>>>> qt.svg: link image0 hasn't been detected!
>>>> qt.svg: :/images/wechat.svg:10:6: Could not resolve property: pattern0
>>>> Failed to create OpenGL context for format QSurfaceFormat(version
>>>> 2.0, options QFlags<QSurfaceFormat::FormatOption>(),
>>>> depthBufferSize 24, redBufferSize -1, greenBufferSize -1,
>>>> blueBufferSize -1, alphaBufferSize 8, stencilBufferSize 8, samples
>>>> -1, swapBehavior QSurfaceFormat::SwapBehavior(DoubleBuffer),
>>>> swapInterval 1, profile 
>>>> QSurfaceFormat::OpenGLContextProfile(NoProfile))
>>>> ZoomLauncher: new dump generated from pid 20534, path:
>>>> /home/XXXXX/.zoom/logs/1524b74b-f164-461a-8ad868b2-dbb81244.dmp
>>>> $HOME = /home/XXXXX
>>>> sh: line 1: 20534 Aborted                 /opt/zoom-linux/zoom ""
>>>> success to create child process,status is 34304.
>>>> zoom exited normally.
>>>> Something went wrong while running zoom,exit code is 134.
>>>> ZoomLauncher exit.
>>>>
>>>> I can't find anything helpful on this.
>>>>
>>>> Thanks
>>>>
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>>>
>>>
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>>
>>
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