https://bugs.freedesktop.org/show_bug.cgi?id=97220
--- Comment #7 from Paul Menzel pmenzel+bugs.freedesktop@molgen.mpg.de --- (In reply to kenneth johansson from comment #6)
I have no idea what a tiled display is.
I believe it means, that there are actually two panels.
If I use the Intel display port I get or more correctly used to get two displays that I could then combine with xrandr into one larger. Now the kernel driver presents just the combined one directly no need to manually do anything.
I have the same monitor. With Linux 4.17 and 4.18 at least GDM 3.28 and 3.30 are correctly displayed over the full screen. Could you please retest?
PS: The monitor, unfortunately, only gives problems with the free drivers (Intel and AMDGPU) and firmware (UEFI of MSI B350M MORTAR (MS-7A37)). I believe it’s the monitor firmware, but my colleagues say, they do *not* have any problems with the proprietary Nvidia drivers and Microsoft Windows. So, it’s either a bug in the free drivers, or the proprietary drivers work around it somehow.
Here are my bug reports for that. I do not know if these are specific drivers bugs or in the generic DRM code.
[1]: https://bugs.freedesktop.org/show_bug.cgi?id=107607 [2]: https://bugs.freedesktop.org/show_bug.cgi?id=107845