Hi, I notice a regression report on Bugzilla [1]. Quoting from it:
> Original Summary: > absent both plymouth, and video= on linu lines, vtty[1-6] framebuffers > produce vast raster right and bottom borders on the larger resolution of two > displays > > To reproduce: > 1-connect two unequal native resolution displays to a Tesla or Firmi GPU > 2-don't have plymouth in use (I don't ever have it installed, so don't know > whether it impacts) > 3-don't include e.g. video=1440x900@60 directive on Grub's linu lines > 4-boot Tumbleweed or Fedora 38 > 5-switch to a vtty, e.g. Ctrl-Alt-F3 > > Actual behavior: > 1-Both displays utilize the resolution (same pixel grid) of the lower > resolution display > 2-Lower resolution display behaves as expected (light text on black > background) > 3-Higher resolution display uses same pixels as lower resolution display, > with light text on black background, leaving right side and bottom raster > instead of black > > Expected behavior: > 1-Both displays utilize the resolution (same pixel grid) of the lower > resolution display > 2-Lower resolution display behaves as expected > 3-Entire higher resolution display's background is black instead of portions > in raster > > Workaround: add e.g. video=1440x900@60 to Grub's linu lines, which causes > both displays to use the same nominal mode on the full display space. > > Typical other linu line options: > noresume consoleblank=0 net.ifnames=0 ipv6.disable=1 preempt=full > mitigations=none > > My Tesla has HDMI and DVI outputs, tested with 1920x1200 and 1680x1050 > displays. > My Fermi has dual DisplayPort, tested with 2560x1440 and 1680x1050 displays. > Occurs Tumbleweed with 6.3.2 and 6.2.12 kernel-default, and with 6.2.15 on > Fedora 38, and (partially with Tesla, right side only) with 6.2.12 and 6.3.3 > on Mageia 9. > Does not occur with 6.1.12 kernel-default on NVidia, or with AMD Caicos > (Terascale2) GPU, or with Intel Eaglelake GPU. > Tested only on legacy booting (no UEFI support). > Others might describe what I call "raster" as multicolored snow. See bugzilla for the full thread and attached dmesg. Anyway, I'm adding it to regzbot: #regzbot introduced: v6.1.12..v6.2.12 #regzbot title: vast raster right and bottom borders on larger display (two displays with inequal resolution) unless forcing resolution with video= parameter Thanks. -- An old man doll... just what I always wanted! - Clara
