Re: xfce and Xenocara vulkan drivers, graphics/vulkan-loader

Landry Breuil wrote:
> Le Tue, Jul 28, 2026 at 04:17:14PM +0800, Chris Billington a écrit :
>> Chris Billington wrote:
>>> I noticed on a machine with Intel Graphics running 8.0-current with the
>>> Xfce desktop that the xorg vulkan driver does not get loaded by
>>> graphics/vulkan-loader. 'vulkaninfo' from vulkan-tools returns an error.
>>>
>>> This is because /usr/local/bin/startxfce4 (which is installed by the
>>> xfce4-session package) checks for the environment variable
>>> XDG_DATA_DIRS, which is used by vulkan-loader to define the search paths
>>> for the driver/loader json definitions.
>>>
>>> If it is not previously defined, XDG_DATA_DIRS is set to
>>>
>>>     XDG_DATA_DIRS=/usr/share:/usr/local/share
>>>
>>> and the files from the xbase80 set in /usr/X11R6/share/vulkan/icd.d are
>>> therefore not found.
>>>
>>> Rather than patching xfce4-session, a 'fix' might be to add
>>>
>>>     export XDG_DATA_DIRS=/usr/X11R6/share:/usr/share:/usr/local/share
>>>
>>> to ~/.xsession
>>>
>>> A note to this effect could be added to the pkg-readme/xfce file in
>>> meta/xfce
>>>
>>> As well as the 'vulkan ports', I believe this is relevant for Chromium
>>> and friends if so configured.
>>>
>>> Regards
>>> Chris Billington
>>
>> A suggested diff for the above:
> 
> thanks for that diff, though it's a bit cumbersome to have to follow
> such instructions, i'll probably see about upstreaming a fix to
> startxfce4 instead (and backport it as patch).
> 
That would be better. No doubt other BSDs which have Xorg in /usr/X11R6 
have the same issue.