Can't configure a desktop with 3x4k monitors in one row (modesetting)

Submitted by Ethan Hsieh

Assigned to Xorg Project Team

Link to original bug (#102508)

Description

Created attachment 133916 Screenshot

Filed a new bug for modesetting driver.

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Can't configure a desktop with 3x4k monitors in one row https://bugs.freedesktop.org/show_bug.cgi?id=98297#c22

the mesa part is now fixed, but the modesetting driver in xserver needs to be fixed too:

hw/xfree86/drivers/modesetting/drmmode_display.c:
xf86CrtcSetSizeRange(pScrn, 320, 200, mode_res->max_width, vs. src/sna/sna_display.c: xf86CrtcSetSizeRange(sna->scrn, 8, 8, INT16_MAX, INT16_MAX);

currently with xserver 1.19.3 it's not possible to configure 3x4k row of monitors unless the -intel ddx is used.

Attachment 133916, "Screenshot":