Re: F31 - getting UHD external monitor to display at 3840x2160 resolution

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, 21 Apr 2020 17:47:14 -0300 "George N. White III" <gnwiii@xxxxxxxxx> wrote:

> On Tue, 21 Apr 2020 at 16:30, Ranjan Maitra <maitra@xxxxxxxxx> wrote:
>
> > On Tue, 21 Apr 2020 11:49:59 -0700 stan via users <
> > users@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
> >
> > > On Tue, 21 Apr 2020 12:40:30 -0500
> > > Ranjan Maitra <maitra@xxxxxxxxx> wrote:
> > >
> > > > On Tue, 21 Apr 2020 12:17:24 -0500 Ranjan Maitra <maitra@xxxxxxxxx>
> > > > wrote:
> > > >
> > > > > Hi,
> > > > >
> > > > > I recently got myself a UHD monitor.
> > > > >
> > > > >
> > https://www.amazon.com/dp/B07JXCR263?tag=aboutcom02lifewire-20&linkCode=ogi&th=1&psc=1&ascsubtag=4138562%7Cneef17e57867342f0bc4b3af20a9ba60801
> > > > >
> > > > > However, when I connect to my 3840x2160 resolution laptop and use
> > > > > xrandr (through HDMI, supplied with the monitor) I do not even get
> > > > > an option for 3840x2160. Here is what I get:
> > >
> > > I see this in your original email in the xrandr output.
> > > >    3840x2160     60.00*+  59.98    59.97    48.00
> > > Does that not indicate that it is running at 3840x2160 at 60Hz?
> >
> > Sorry, this line was for the laptop screen. But i have realized the issue.
> > A USB-C to HDMI 2.0 is needed, apparently the type-C multihub sold by Dell
> > does not work for UHD. Changing to the USB-C to HDMI dongle has fixed the
> > issue and 3840x2160 is available.
> >
>
> Life would be so much easier without cables and connectors.
>
> >
> > I have a different question however: is it safe to work now with the lid
> > closed or will the laptop overheat? I have switched off the screen for the
> > laptop using xrandr.
> >
>
> With the internal screen off the heat production should be reduced.   The
> laptop shouldn't overheat, but may slow down, depending on ambient
> temperatures.   In our globally warmer future, seasonal migration may be
> necessary to keep laptops running at full speed.
>
>  There are several tools to monitor temperatures, fan speed, and CPU
> loads.   I've never needed to worry about GPU overheating, so I'm not sure
> what, if any, instrumentation is available.
>

Thanks very much! I just wanted to make sure. I do not want to lose the laptop in this isolationist environment.

I have a different question, and that is, that the laptop has a HiDPI screen so needed tweaks to .Xresources to get it to display in a readable way. However, this is not needed for the attached monitor so is it possible to set things up so that the laptop screen scales things differently from the monitor? I have the following in my .Xresources for the laptop screen.

!-------------------------------------------- ! Custom DPI !-------------------------------------------- !
Xft.dpi: 192
Xft.autohint: 0
Xft.lcdfilter: lcddefault
Xft.hintstyle: hintslight
Xft.hinting: true
Xft.antialias: 1
Xft.rgba: rgb
Xcursor.size: 32

---------------------------------

Which looks fine on my laptop but things look fuzzier on the monitor. How do I get this to be higher resolution for the monitor and it to also work on the HiDPI screen? I use openbox as my WM (and do not use a DE).

Many thanks and best wishes,
Ranjan
_______________________________________________
users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx
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/users@xxxxxxxxxxxxxxxxxxxxxxx



[Index of Archives]     [Older Fedora Users]     [Fedora Announce]     [Fedora Package Announce]     [EPEL Announce]     [EPEL Devel]     [Fedora Magazine]     [Fedora Summer Coding]     [Fedora Laptop]     [Fedora Cloud]     [Fedora Advisory Board]     [Fedora Education]     [Fedora Security]     [Fedora Scitech]     [Fedora Robotics]     [Fedora Infrastructure]     [Fedora Websites]     [Anaconda Devel]     [Fedora Devel Java]     [Fedora Desktop]     [Fedora Fonts]     [Fedora Marketing]     [Fedora Management Tools]     [Fedora Mentors]     [Fedora Package Review]     [Fedora R Devel]     [Fedora PHP Devel]     [Kickstart]     [Fedora Music]     [Fedora Packaging]     [Fedora SELinux]     [Fedora Legal]     [Fedora Kernel]     [Fedora OCaml]     [Coolkey]     [Virtualization Tools]     [ET Management Tools]     [Yum Users]     [Yosemite News]     [Gnome Users]     [KDE Users]     [Fedora Art]     [Fedora Docs]     [Fedora Sparc]     [Libvirt Users]     [Fedora ARM]

  Powered by Linux