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Old 05-01-2026, 11:55 AM   #35
philja
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Join Date: Nov 2015
Location: Europe EEC
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Quote:
Originally Posted by KevinH View Post
The error messages in your last post show that Qt is trying to use Vulkan (just like the other related error messages). Are you absolutely sure your graphics card driver supports Vulkan?

The second thing I saw is about an app sandbox being used, but using a sandbox with any app like Sigil is simply not a good idea. Not sure is adding the option to turn off the sandbox would help or not.

I found 3 vulkan related packages for your system:

vulkan-tools
vulkan-utils
mesa-vulkan-drivers

That last one is key.

Please make sure all 3 are installed on your system and if not present install-them.

Next try running this command to see what graphics card you have and which driver it uses:

lspci -k | grep -i VGA

Please let us know what you find.
I'm not sure about my graphics card and vulkan - (there is a much longer story about the graphics card).

It looks like the sandbox is responsible for the long initial startup time. Not a major problem, but I'll look into the link you provided in your following post.

I have the following vulkan packages installed:

libvulkan-dev
mesa-vulkan-drivers
vulkan-tools

vulkan-tools is described as 'miscellaneous vulkan utilities'
vulkan-utils is not listed as an available package, but there is a package 'vulkan-utility-libraries-dev', although not installed.

lspci -k | grep -i VGA gives the following result:

Code:
01:00.0 VGA compatible controller: NVIDIA Corporation GK208B [GeForce GT 710] (rev a1)
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