Re: Screen resolution during Stretch installation
- Date: Fri, 1 Mar 2019 12:30:52 -0500
- From: Felix Miata <mrmazda@xxxxxxxxxxxxx>
- Subject: Re: Screen resolution during Stretch installation
Fabiano Ferronato composed on 2019-03-01 16:20 (UTC+0100):
> I don't know if this is the wright place to ask, but I'm searching a lot
> trying to find a way to this problem.
> I'm installing Debian in my Asus ROG GL552VW laptop (Intel and Nvidia video
> cards) and the resolution (probably 3840x2160)is set in a way that the
> font size is so small that I have to almost put my face on the monitor so
> I can read. And the windows size is also larger than the monitor area, so I
> can't see the buttons. I can complete the installation either way, but I
> want to know why this is happening and how to solve this.
> After OS install, I try to follow Debian instructions to install Nvidia
> drivers. But I'm following every tutorial and ending up with a broken
> So, my questions:
> Where I can change the screen resolution during (or before) install?
> After install, resolution is still wrong. How can I set OS resolution
> during install?
An alternative suggestion to Curt's is to utilize the kernel's KMS. Curt's suggestion included
disabling KMS with either the nomodeset or nouveau.modeset=0 string on the installer's cmdline.
Including video=2560x1440 or video=1920x1080 should increase the font sizes without disabling KMS.
Including either nomodeset or nouveau.modeset=0 for installation generally means its included in
/etc/default/grub and /boot/grub/grub.cfg on the installed system, continuing KMS blockage, and
making video performance suffer greatly. Both are intended as troubleshooting workarounds, though
traditionally, non-FOSS drivers have required disabling KMS full time.
Another key is the i7-6700HQ provides HD 530 Intel video. Intel + NVidia usually equates to
"Optimus", which generally means a requirement to follow special instructions for installing either
OS or NVidia drivers. These you can find by using Optimus, Prime and Bumblebee as search keywords.
Optimus instructions on https://wiki.archlinux.org/index.php/Optimus are reputedly very good, in
case any you find for Debian seem inadequate to task.
Note too that there are three potentially competent DDX drivers for NVidia, the non-FOSS from
NVidia, plus the two from Xorg, nouveau and modesetting. The newer technology modesetting is the
upstream default, included in the server package since 4 years ago, but most installations manage
to override it by installing all optional DDX drivers via virtual (meta) package, including
xserver-xorg-video-nouveau. BTW, upstream's name for DDX drivers takes the form
xf86-video-<nameORmodel>, helpful to know in evaluating search results.
Having the nouveau DDX installed blocks the modesetting DDX unless explicitly configured not to via
/etc/X11/xorg.conf*. IOW, if you purge xserver-xorg-video-nouveau, or explicitly configure its use,
before installing NVidia drivers, you get an opportunity to test whether you even need to add the
Evolution as taught in public schools is religion, not science.
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata *** http://fm.no-ip.com/