Re: OT: recommendations for a 2880x1800 external monitor?
Felix Miata <[email protected]> Thu, 2 Jul 2026 12:55:59 -0400
| Newsgroups | gmane.linux.redhat.fedora.general |
|---|---|
| Message-ID | <[email protected]> |
Ranjan Maitra via users composed on 2026-07-02 11:35 (UTC-0500): > Felix Miata wrote: >> Simpler choices I suggest to try for mirroring the two: >> >> xrandr --output eDP-1 --mode 2560x1440 --pos 0x0 --output HDMI-1 --mode 2560x1440 >> --pos 0x0 >> >> xrandr --output eDP-1 --mode 2880x1800 --pos 0x0 --output HDMI-1 --mode 3840x2160 >> --scale-from 2880x1800 >> >> xrandr --output eDP-1 --mode 2880x1800 --pos 0x0 --output HDMI-1 --mode 3840x2160 >> --scale .75x.75 >> >> xrandr --output eDP-1 --mode 2880x1800 --pos 0x0 --output HDMI-1 --mode 3840x2160 >> --scale 1.333x1.333 >> >> I always forget which direction scaling works, so one of the last two will be >> clearly wrong. Also you'll likely find it desirable or necessary to adjust the >> scale value for vertical to account for the difference in the two displays native >> aspect ratios. Later I may find time to try to emulate using 16:9 2560x1440 with >> 16:10 1920x1200 displays if you haven't solved to your satisfaction. >> > > I now can not recall about the first one, but the second and third do the same thing. Which likely makes sense. However, both screens are completely filled (how is this possible?) and what is really bad about the HDMI-1 screen is that it does not display new windows or the mouse cursor or even when you write on an existing terminal then the script gets messed up (I do not quite know how to explain this) to be unreadable. The eDP-1 screen looks fine to me. > So, I am missing something. Or perhaps I was, missed by not testing here first. First, see if it makes any difference using DP-whichever output and a DisplayPort cable if you can. I'm thinking you may need an X configuration option in /etc/X11/xorg.conf.g/ having to do with display mirroring. I'll have to revisit this after a while.... -- Evolution as taught in public schools is, like religion, based on faith, not based on science. Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata -- _______________________________________________ users mailing list -- [email protected] To unsubscribe send an email to [email protected] Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/[email protected] Do not reply to spam, report it: https://forge.fedoraproject.org/infra/tickets/issues/new