LinuxQuestions.org
Help answer threads with 0 replies.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Reply
  Search this Thread
Old 11-13-2018, 01:52 AM   #1
jj1
LQ Newbie
 
Registered: Nov 2018
Location: Pacific northwest
Distribution: MX Linux 17.1
Posts: 14

Rep: Reputation: Disabled
Can I decrease high res display resolution at grub/ login screen


I use Dell 5520 laptop that has 3840x2160 display. I have Linux MX-xfce4 distro installed. I set the resolution to 1920x1080 in xfce4 display settings so I can see icons better because their tiny as f*, but at grub screen, and login screen it goes back to 3840x2160 res. Is there a way to set/adjust res for grub and login screens? Or maybe a theme that's suited for high res screens?


3840x2160 resolution
http://i65.tinypic.com/6o3ar9.jpg
 
Old 11-13-2018, 03:42 AM   #2
TenTenths
Senior Member
 
Registered: Aug 2011
Location: Dublin
Distribution: Centos 5 / 6 / 7
Posts: 3,064

Rep: Reputation: 1294Reputation: 1294Reputation: 1294Reputation: 1294Reputation: 1294Reputation: 1294Reputation: 1294Reputation: 1294Reputation: 1294
Not sure if it'll work for your distro but you could give this a try: https://centos.tips/forcing-a-specif...mode-centos-7/
 
1 members found this post helpful.
Old 11-13-2018, 05:24 AM   #3
mrmazda
Senior Member
 
Registered: Aug 2016
Location: USA
Distribution: openSUSE, Debian, Knoppix, Mageia, Fedora, others
Posts: 2,551

Rep: Reputation: 837Reputation: 837Reputation: 837Reputation: 837Reputation: 837Reputation: 837Reputation: 837
For the Grub menu VESA mode you wish used, replace auto with it in /etc/default/grub GRUB_GFXMODE=. For the login screen I have video=1440x900 included in that same file's GRUB_CMDLINE_LINUX_DEFAULT= for use with 1920x1200 screens. You might want 2560x1440 or 1920x1080 for your 3840x2160.
 
1 members found this post helpful.
Old 11-13-2018, 02:49 PM   #4
jj1
LQ Newbie
 
Registered: Nov 2018
Location: Pacific northwest
Distribution: MX Linux 17.1
Posts: 14

Original Poster
Rep: Reputation: Disabled
Thanks to the both of you, but I feel a bit foolish now. After poking around os I found grub Customizer app. It had the setting you both reference. The Grub menu looks great now, and loads considerably faster

http://tinypic.com/r/2cnuv6c/9

@mrmazda; The line you mention in my grub file looks like this: GRUB_CMDLINE_LINUX_DEFAULT="splash quiet" .In the Grub Customizer app it mentions "splash quiet" as a kernal perameter. (image)

http://tinypic.com/r/5cc8le/9

It gives no other options. It must be box to enter your own perameter. Can I assume, if I entered "vidio=1920x1080" in grub app kernal perameter box that it would in essence, be same as adding it to grub.txt? (I think yes, but I wont be assuming newby with no video )
In addition, if I add line to grub.txt will the "splash quiet" entry in grub app inhibit addition in grub.txt?
 
Old 11-13-2018, 05:20 PM   #5
mrmazda
Senior Member
 
Registered: Aug 2016
Location: USA
Distribution: openSUSE, Debian, Knoppix, Mageia, Fedora, others
Posts: 2,551

Rep: Reputation: 837Reputation: 837Reputation: 837Reputation: 837Reputation: 837Reputation: 837Reputation: 837
I don't know anything about any grub.txt.

video= tells the kernel what mode the vtty framebuffers should use, independently of grub. I use video= instead of splash and/or quiet. video= only takes effect well after grub has done all it is going to do, after init is fairly well along.

Since I don't use Customizer, I can only presume if you put video=1920x1080 in whatever box holds video and quiet that it would be the same in the grub.cfg that results from using Customizer.

Putting 1920x1080 in GRUB_GFX_MODE wouldn't likely produce the same result because 1920x1080 is neither a native display mode nor a VESA mode.

Using video= on cmdline has an effect that differs according to gfxchip and X configuration. Generally, with intel gfxchip X will inherit the video= mode (override the native/preferred mode), while with amd and nvidia gfx X will ignore the video= mode (defer to the native/preferred mode).
 
Old 11-13-2018, 07:34 PM   #6
jj1
LQ Newbie
 
Registered: Nov 2018
Location: Pacific northwest
Distribution: MX Linux 17.1
Posts: 14

Original Poster
Rep: Reputation: Disabled
I tried adding line, 'video=1920x1080', to /etc/default/grub file, and also changed the kernal perameter in the customizer. Neither changed the login screen resolution...at this juncture problem half solved
 
Old 11-13-2018, 07:53 PM   #7
mrmazda
Senior Member
 
Registered: Aug 2016
Location: USA
Distribution: openSUSE, Debian, Knoppix, Mageia, Fedora, others
Posts: 2,551

Rep: Reputation: 837Reputation: 837Reputation: 837Reputation: 837Reputation: 837Reputation: 837Reputation: 837
Changes made directly in /etc/default/grub are only effective after the /boot/grub/grub.cfg file is rebuilt with update-grub or grub-mkconfig.
 
Old 11-15-2018, 04:06 AM   #8
jj1
LQ Newbie
 
Registered: Nov 2018
Location: Pacific northwest
Distribution: MX Linux 17.1
Posts: 14

Original Poster
Rep: Reputation: Disabled
I updated grub right after I edited grub.cfg. The login screen didnt change. Something else is controling resolution for that screen.
 
  


Reply

Tags
display, grub2, login, resolution


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
Infinite Grub Loop: GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB... beeblequix MEPIS 2 11-02-2013 10:56 PM
max res @ 640x480 res with KVM guttersnipe Linux - Software 3 06-10-2008 12:46 AM
typing login only changes screen resolution at login screen raggedyman Linux - Software 1 01-21-2007 11:32 AM
Need to adjust screen res but can not see anything on the the screen MurX Linux - Hardware 2 08-08-2006 05:51 AM
Looking for high-res LCD screen r0b0 General 3 10-26-2005 03:16 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie

All times are GMT -5. The time now is 08:23 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration