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1600x900 not available

My laptop is a Dell XPS-13 running CentOS 7.  It has a 13" 1920x1080
screen and it's a bit difficult for my mid-40s eyesight.  Fedora and
Debian, on this laptop, give me the option of choosing 1600x900 which is
much easier for me to read but CentOS doesn't show this resolution as
available.

I followed the steps I found in a post on stackexchange using xrandr,
substituting 1600x900 where applicable and it worked but, once I
rebooted, it went back to 1920x1080 with no 1600x900 option in
settings-display.

Is there a way I can add 1600x900 resolution the list of available
resolutions in settings-display?

Thanks,

Sean

Comments

Re: 1600x900 not available

By Scott Robbins at 01/10/2018 - 13:43

On Wed, Jan 10, 2018 at 08:43:08AM -0600, Sean Smith wrote:
You can put the xrandr command in your .xinitrc if you boot into text mode.
I'm sure there's a place to put it for booting into GUI mode as well,
though I'm not sure of the location.

You can also play around with .Xdefaults--sometimes, setting dpi can help.
For example, my yoga2 has, in .Xdefaults

Xft.dpi:192

Which increases font size.

Re: 1600x900 not available

By Giles Coochey at 01/10/2018 - 10:54

On 10/01/2018 14:43, Sean Smith wrote:

Re: 1600x900 not available

By Sean Smith at 01/10/2018 - 11:25

I have no idea how.  All I can find is the Hi-DPi settings in
Gnome-Tweak but, of course, it only lets  me choose to scale from "1" to
"2" which makes things way too big.

On 01/10/2018 08:54 AM, Giles Coochey wrote:

Re: 1600x900 not available

By Scott Robbins at 01/10/2018 - 13:45

On Wed, Jan 10, 2018 at 09:25:04AM -0600, Sean Smith wrote:
It's better to not top post if possible. :)

There is an xrandr scale command as well. If for example, your output is
eDP1 then
xrandr --output eDP1 --scale .8x.8

The smaller the scaling, the larger the size, so I think that .5x.5 would
be what the tweak tool is offering.

Re: 1600x900 not available

By Sean Smith at 01/11/2018 - 13:50

On 01/10/2018 11:45 AM, Scott Robbins wrote:
Thanks for the help.

I've got it working now.  What I ended up doing was adding
video=1600x900 to my boot / kernel command line to test and then
appended it in my grub menu.

I screwed around with font scaling with Gnome Tweak and also in
about:config of Firefox and Thunderbird but there was always something
that looked funny and some webpages didn't come out right.

setting my resolution to 1600x900 is a cheesy, yet effective, way to do
get what I need.

...Now if I can just get my touchpad to FRICK'N disable while typing.

Sean,

Re: 1600x900 not available

By m.roth at 01/11/2018 - 14:34

Sean Smith wrote:
<snip>
mark

Re: 1600x900 not available

By Scott Robbins at 01/11/2018 - 18:52

On Thu, Jan 11, 2018 at 01:34:00PM -0500, <a href="mailto:m.roth@5-cent.us">m.roth@5-cent.us</a> wrote:
Then you can type syndaemon -d which usually is sufficient. There are more
specific ways to use it.

<a href="ftp://www.x.org/pub/X11R7.5/doc/man/man1/syndaemon.1.html" title="ftp://www.x.org/pub/X11R7.5/doc/man/man1/syndaemon.1.html">ftp://www.x.org/pub/X11R7.5/doc/man/man1/syndaemon.1.html</a>

Re: 1600x900 not available

By Sean Smith at 01/11/2018 - 16:08

On 01/11/2018 12:34 PM, <a href="mailto:m.roth@5-cent.us">m.roth@5-cent.us</a> wrote:
Okay, got the "disable touchpad while typing" thingy working.

Here's what I did:

Install dconf-editor if you haven't already.

Then, from a console (not as su), run:

dconf write /org/gnome/desktop/peripherals/touchpad/disable-while-typing
true

This seems to have worked for me.

Good luck,

Re: 1600x900 not available

By m.roth at 01/11/2018 - 16:15

Sean Smith wrote:
mark

Re: 1600x900 not available

By Leroy Tennison at 01/11/2018 - 16:27

I run KDE too, if you find out how then please post, thanks.

Sean Smith wrote:
mark