Sky broken in Linux (Integrated Card)

[Felicis]

When using Stellar Sky I always get OpenGL errors and a broken sky: either RGB stripes or colored tv static (https://imgur.com/a/WEDiJ). I tried two different minecraft (and forge and Stellar...) versions with similar results.
The errors are repeating and mostly of this shape:

[main/ERROR]: ########## GL ERROR ##########
[main/ERROR]: @ Post render
[main/ERROR]: 1286: Invalid framebuffer operation

Error logs: https://pastebin.com/uc7Tf0Cq and https://pastebin.com/UCq3Cbn4

Does anyone know about this issue?

[Abastro]

Wow, this looks both frustrating and splendid.
I'll investigate this one on the highest priority. I guess it could be a driver bug.

[Abastro]

I think float16 format is unsupported in your platform, even if the flag says otherwise.
I'll try to fix this.

[Abastro]

Before trying, would you please update your graphic drivers? This could just be a bug.
EDIT: Also try with the latest version.

[Felicis]

It looks like I'm using the latest driver.... Have to check the float16 thing more in detail
You mean I should try with the latest StellarSky Version?
Why do you think float16 is unsupported? I'm not really into graphics drivers and don't know where to gather the information.

[Felicis]

Also the latest (april) version still looks the same for me 😇

[Abastro]

It's written on the log - float16 not supported.
Would you post the latest log? I want to know if the situation changed or not.

[Felicis]

it still says so....
LOG: https://pastebin.com/nUGUhV6J

[Felicis]

Also I found out I am using Mesa 10.1.3, OpenGL 3.3 and GLX 1.4
(glxinfo: OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.1.3)
I don't know if it may be intereseting: I'm using Ubuntu 14.04 on a i7-4600U with Intel HD 4600

[Abastro]

Sorry for being late, but...
Closer look on this one gives me impression of one of the hardest bug to beat : a driver bug.
May I ask, still no updates available on the driver?

[Felicis]

Sorry for being late, but...

Never mind 😄

I'll check for driver updates and tell you.

[Abastro]

How's it like on the latest beta version? Please check it

[Felicis]

Still getting the error (in console). But I don't get the fuzzy thing any more 🤔: Now it's just plain black.
Also I did some searching and found someone who's had a very similar issue with vanilla minecraft, because other applications were using hardware acceleration...

[Felicis]

I am starting to believe it has something to do with using an older OS... I will try it on a newer one

[Abastro]

Do you have your own dedicated graphics card? If you have, then try to use that one.
Probably Minecraft is running software emulation in your case, which is slow and unreliable.

[Felicis]

It's an Intel HD 4600 (?).
And I assume it's hardware accelerated, but I haven't found the settings for it.

[Abastro]

So you don't have dedicated graphics card, but only integrated card?

[Felicis]

nope 😇
works pretty well with minecraft. Without fancy shaders, obviously 😒

[Abastro]

Would you post current log?

[Felicis]

normal log: https://pastebin.com/sXZvBsCB
debug log: https://hohl.tru.io/index.php/s/xpC4s3zHBJwcy2r

[Abastro]

This is certainly a driver bug. I checked that the framebuffer is complete, yet it gives 1286: Invalid framebuffer operation error - which should only happen when the framebuffer is incomplete.

[Abastro]

But I'll check if it's this case - I'm going to request you to test one or two more versions in a few days, is it okay?

[Felicis]

sure
if you know some way to debug it to get more detailed info on the error, I could do it (I currently have no idea of graphics cards)