Bug#912925: glx-diversions: should divert libGL.so when other libraries are diverted to NVIDIA as pyqt5 breaks otherwise

[Andreas Beckmann]

On 2018-11-05 13:45, Julian Gilbey wrote:
> On Mon, Nov 05, 2018 at 10:43:44AM +0100, Andreas Beckmann wrote:
>> Control: tag -1 wontfix
>>
>> On 2018-11-05 01:17, Julian Gilbey wrote:
>>> So the pragmatic way to fix it would be to symlink libGL.so to the
>>> NVIDIA libGL.so... (and presumably the other related .so libraries)
>>> when glx-diversions is used.  Because having libGL.so.1 pointing to
>>> one version of the library and libGL.so pointing to an incompatible
>>> version is causing this crash.
>>>
>>> Please could you therefore modify glx-diversions to ensure that the
>>> unversioned libGL.so points to the same location as the versioned
>>> libGL.so.1 (and the others too: libEGL.so, libGLESv1_CM.so and
>>> libGLESv2.so).
>>
>> Stuff that dlopens the .so files is broken. They should dlopen the .so.1
>> (or thatever the soversion is).
> 
> By this argument, surely there should not be a libGL.so on the system
> at all?

The .so file is for use by the linker. Not for runtime.

>  And it also does not address the serious issue that libGL.so
> points to a different library from libGL.so.1.
> 
> The discussions online show that this is an issue which has been
> around for years.  The solution is simple.

Does your testcase run under bumblebee?


Andreas