On 05.01.2021 08:47, David Christensen wrote:
On 2021-01-04 09:14, Alexander V. Makartsev wrote:
"xrandr" utility should help you with diagnostics and setup:
$ xrandr -q
Thank you for the reply. :-)
2021-01-04 19:22:57 root@dipsy ~
# xrandr -q
Can't open display
You have to run it as a normal user, hence a "$" sign.
Note pop-up:
┌────────────────────┤ Configuring nvidia-legacy-check
├────────────────────┐
Choose 'No'.
As I previously explained, you'll have to install legacy driver version
390 for your VGA to work.
This will be true for any other additional packages that are part of
Nvidia drivers.
So in order to get "nvidia-settings" utility that supports your VGA, you
have to install "nvidia-settings-legacy-390xx" package.
And a new issue:
Xfce -> Settings -> Display -> Resolution now only offers three choices:
1024x768
800x600
640x480
The laptop has a 1920x1080 screen. The external monitor is 1920x1080.
The nouveau driver was able to drive both the laptop display and the
external monitor at 1920x1080. I would like to do so with the
non-free Nvidia legacy driver.
I think somehow nvidia driver fails to process EDID information of your
monitor and laptop screen. Also Optimus doesn't make things easier.
This is what I get with default settings (no special kernel command line
parameters) on my system:
$ xrandr -q
Screen 0: minimum 8 x 8, current 1680 x 1050, maximum 32767 x 32767
DVI-D-0 connected 1680x1050+0+0 (normal left inverted right x axis y
axis) 474mm x 296mm
1680x1050 59.88*+ 59.95
1280x1024 75.02 60.02
1280x960 60.00
1152x864 75.00
1024x768 75.03 70.07 60.00
800x600 75.00 72.19 60.32 56.25
640x480 75.00 72.81 59.94
HDMI-0 disconnected (normal left inverted right x axis y axis)
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
DP-4 disconnected (normal left inverted right x axis y axis)
DP-5 disconnected (normal left inverted right x axis y axis)
Looking around for X configuration files:
2021-01-04 19:34:58 root@dipsy ~
# locate xorg.conf
/usr/share/X11/xorg.conf.d
/usr/share/X11/xorg.conf.d/10-amdgpu.conf
/usr/share/X11/xorg.conf.d/10-quirks.conf
/usr/share/X11/xorg.conf.d/10-radeon.conf
/usr/share/X11/xorg.conf.d/40-libinput.conf
/usr/share/X11/xorg.conf.d/70-wacom.conf
/usr/share/X11/xorg.conf.d/nvidia-drm-outputclass.conf
RTFM xorg.conf(5), I am unsure if any of the located files (above) are
active:
They are active, but those files are default config snippets. I have
them on my system too.
Usually, "/etc/X11/xorg.conf" and "/etc/X11/xorg.conf.d/" is the place
for X configs and snippets of X configs.
It would be helpful if you collect output from utilities I mentioned before.
Try "nvidia-settings" (not as root :), because it has ability to detect
screens and generate Xorg config. [1]
I've just now found a very detailed configuration manual from Nvidia
[2], that explains why monitors could not be detected properly (See a
warning section for "ConnectedMonitor" option).
[1]
https://zuttobenkyou.wordpress.com/2009/10/04/linux-nvidia-xinerama-guide-rotating-just-one-monitor-in-a-dual-head-setup/
[2]
https://download.nvidia.com/XFree86/Linux-x86_64/390.138/README/configtwinview.html
--
With kindest regards, Alexander.
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