There was no perfect answer here. Making it fallback to VK instead of crashing was the fix for this cash. The OpenGL driver appears to be (partially?) broken here, with this being specific to Maxwell and Pascal GPUs (900 and 1000). I did actually test this on effected hardware, and do not have a good way to make GL work properly. This is likely a bug in Nvidia’s EGL implementation, which is only used via Wayland, with Nvidia being known to have issues with Wayland (so, EGL).
I cannot reproduce this issue, and it appears you are not using the latest drivers available for your computer. Can you try updating your drivers to see if that resolves the issue?
Hi!
Thank you for your report!
We're already tracking this issue at MC-310331, so I will resolve and link this ticket as a Duplicate.
I suggest also to browse through the main issue for potential fixes.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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This has been improved in newer snapshots, however it is not fully fixed. The remaining discrepancy will not be fixed.
Cannot reproduce this on 26.3-snapshot-6. If you are able to reproduce this, please attach a screenshot or video with F3 debug shown.
Half of this (different functions) is unsupported by OpenGL without GL_ARB_draw_buffers_blend (core-since 4.0), which is unsupported by RenderPearl. Only the first example is a bug (blend enabled for one target, disabled for another) as that is supported by GL 3.3.
Hi!
Thank you for your report!
We're already tracking this issue at MC-122263, so I will resolve and link this ticket as a Duplicate.
I suggest also to browse through the main issue for potential fixes.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki
Hi!
Thank you for your report!
We've already resolved this issue at MC, so I will close and link this ticket as a Duplicate.
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki
This performance impact is expected because cushions are entities.
Confirming bug as I have reproduced this issue with an HD 4000 (same generation iGP) on 26.2 and 26.3-snapshot-1.
This appears to be a driver configuration issue with your system. Using OpenGL, the game has no control over what GPU is used. If the system selects llvmpipe this is a configuration on your system and not something the game can change.
When Vulkan is preferred, it is known that in some circumstances the game will pick software rendering (lavapipe) via VK over a dGPU via GL (MC-307991). In this case the log will give info on why the game made the choice it did.
Thank you for your report!
After consideration, the issue is being closed as Working as Intended.
Please note, that mechanics of the game may change between updates.
Things such as graphics, sounds, world creation, biomes, redstone, villagers, and animals may not work the same in current versions.
Full Version History – Snapshot Version History – The official Minecraft feedback site
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It is not, this bug only effects the Vulkan backend. 26.2-snapshot-8 switched to OpenGL by default, hiding the issue.
Thank you for your report!
However, this issue is Invalid.
This is an issue identified as a Driver issue.
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This requires the window size and gui scale to line up where the bounds of the selection box is outside that of the window. The default settings (gui scale auto) and window size (854x480) happen to do this.
We are unable to reproduce this on our device with an X1-45 GPU.
Can you provide a screenshot with the F3 debug screen open while the issue is present?
Additionally, can you try setting Options → Video Settings → Graphics API to “Prefer Vulkan (Experimental)” to see if that resolves the issue?