Ubuntu 22.04.4 on a Thinkpad X200s the viewer only shows an empty page

[ouboub]

Hi While I can run sioney on my MacBook running Big Sur, I

1. installed Ubuntu 22.04.4 on my old Thinkpad X200s together with fuse2
2. I downloaded either sioyek-release-linux-portable.zip or
3. sioyek-release-linux.zip

however, when I tried to run either of these, I just obtained an empty screen I opened another pdf file but again the sioyek screen was empty (I attach a screenshot) What do I miss here regards

Uwe Brauer

[ahrm]

Probably it is an opengl issue? Install opengl drivers or use mesa software opengl.

[ouboub]

I installed:

sudo apt-get install mesa-utils libglu1-mesa-dev freeglut3-dev mesa-common-dev
sudo apt-get install libglew-dev libglfw3-dev libglm-dev
sudo apt-get install libao-dev libmpg123-dev

restarted the X server but it did not help.

[ahrm]

Maybe this helps: https://github.com/ahrm/sioyek/issues/266#issuecomment-1530824292 ?

[ouboub]

Maybe this helps: #266 (comment) ?

Two comments.

1. I managed to compile sioyek from source on Ubuntu 22 but the problem remains the page shown by sioyek is empty. Shall I open a new issue about that maybe?
2. I tried the advice in comment 266, but I am not sure about my MESA version, any idea how to find that out.

[ahrm]

1. No need for a new issue, this issue is basically that
2. You should be using the command in comment 266 regardless of your mesa version (the version in the comment is referring to the version of the emulated OpenGL not the mesa version).

[ouboub]

1. No need for a new issue, this issue is basically that
2. You should be using the command in comment 266 regardless of your mesa version (the version in the comment is referring to the version of the emulated OpenGL not the mesa version).

ok, then I have to report that even then, with the command in comment 266 sioney (either compiled or the precompiled version) just displays an empty page, independent of the pdf file

[ouboub]

1. No need for a new issue, this issue is basically that
2. You should be using the command in comment 266 regardless of your mesa version (the version in the comment is referring to the version of the emulated OpenGL not the mesa version).

since all this did not work, do you know how I could contact @viccie30 who maintains the Ubuntu packages for distributions 23.04 and 23.10. Maybe he knows what my problem is

[ahrm]

Sorry, I am not in direct contact with him, I assume he will be pinged since you tagged him.

[viccie30]

I read the issue, but I have not built more recent versions than the release that's currently in Ubuntu. I'll have some time in a few weeks, then I can look into it.

[ouboub]

I read the issue, but I have not built more recent versions than the release that's currently in Ubuntu. I'll have some time in a few weeks, then I can look into it.

thanks! since I prefer to use LTS versions, I did not try out 23. the strange thing is either the compiled version or the pre-compiled show only an empty screen that is why I thought I forgot to install package needed for the display. I will try a bit more and then switch to Ubuntu 23

[ouboub]

Maybe this helps: #266 (comment) ?

I also installed libguumbo1 and libgumbo-dev then indeed

 MESA_GL_VERSION_OVERRIDE=3.3 MESA_GLSL_VERSION_OVERRIDE=330 ./sioyek

for the version I compiled or

 MESA_GL_VERSION_OVERRIDE=3.3 MESA_GLSL_VERSION_OVERRIDE=330 ./Sioyek-x86_64.AppImage

works! Great, Issue solved, maybe that should be added to the manual or the install instructions?

[viccie30]

Instead of showing a blank screen, would it be possible for sioyek to check the available OpenGL version and show an error message? That way users know why the screen is blank.