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absent both plymouth, and video= on linu lines, vtty[1-6] framebuffers produce vast snow/raster on right and bottom border areas on the larger resolution of two displays

Summary: absent both plymouth, and video= on linu lines, vtty[1-6] framebuffers produce vast snow/raster on right and bottom border areas on the larger resolution of two displays

https://bugzilla.kernel.org/show_bug.cgi?id=217479 has additional details, including dmesg

not reproducible on AMD APUs or Intel IGPs

only tested on non-UEFI desktop PCs

reproduced on Tesla 10de:0402, 10de:06e4, 10de:0a65 and Fermi 10de:0f00, 10de:107d

reproduced in Fedora, Mageia and Tumbleweed

last known good kernel 6.1.14 (plus Bookworm's 6.1.9/27); oldest known bad kernel 6.2.4, continuing bad in 6.4rc3

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