Factorio Forums

A white bar appears across the bottom of the screen, covering the area containing the equipment and quick bars. This bar is present from the initial load screen onwards. Do not see a related issue in the forums already. Additionally, in gameplay, a further black bar appears below the white bar and moves the white bar up the screen the same amount, although this black bar appears to be decreasing the overall size of the draw window instead of covering content.
The expected result is to not have part of the screen failing to render. Last 0.17.11 log file attached.
Rolling back to prior versions the issue appears to have been retroactively applied to all 0.17 branches (including those without issue previously) but resolves with the installation of the last stable branch [0.16.51]. Subsequent re-update to 0.17.11 results in recurrence of the issue with an inability to accept the changelog (attached), although [Esc] allows bypassing. Clicking in the white bar results in clicks falling through to underlying window.

I have a dual screen setup, with Factorio set to full screen on the primary monitor. Factorio is run through Steam, and verifying integrity of game files results in "All files successfully validated".
PC has 4GB physical ram, only 234MB used by Factorio according to task manager. Graphics card is a GTX 1070 Strix with 8GB VRAM. Native resolution is 1680x1050 on each screen, connected via DVI and HDMI. Of note, expanding the number of quick bars to 4 makes some visible and shows the rough size of the white bars. The white bar disappears when Factorio (fullscreen) is active with --force-opengl, but bar reappears if Factorio loses focus (and then disappears again when it regains focus). The white bar also appears for the first second of the loading screen.

Interestingly, the white bar reappears when Factorio is set to windowed (using Graphics settings->untick Full Screen) even with --force-opengl active. Same fullscreen vs. windowed results with the Steam launch options --fullscreen=true & --fullscreen=false.
The white bar is constantly present if --force-d3d is used.
This issue remains as above with --max-texture-size=4096, --graphics-quality=very-low and --video-memory-usage=low options.

Actually ... this bug report appears to be not just specific to Factorio.

I have noted that this issue is also occurring *outside* of Factorio, such as when I have Anki in a max sized Window on my primary screen (attached). That said, I did recently update Anki from version 2.1.4 to 2.1.10, and a look at the changelog over that time (https://apps.ankiweb.net/docs/changes.html) does show various UI and graphical updates occurring in the interim, so if the same or a similar change was made in both applications that would still explain this.

As such, the issue may be something with my system and is not specific to Factorio, although in that case, I do find it interesting that it did resolve by rolling back to 0.16.

Furthermore, this issue appears to have resolved with a PC restart.