second monitor, no image

[Anonymous]

Helpful

Up

0

::

hi zeh,

The last 96.43 driver package for debian was debian 7 wheezy on the wiki.
which was a 3 series kernel, A ? if a 3 series kernel will build against
a newer gcc is not looking promising nor is nvidia building against a 4 series.
I’ll still setup and try with mine on 17.4.1-full with different kernels.
It seems to be an issue with Xorg, the laptop, or the other monitor not
the driver. the nouveau should display both screens. can you check the
other monitor with another computer? and is there any bios settings for
the video or displays?

going on an adventure here over this weekend and next. first going to see if nvidia 96.43
will build on 4 series kernel then later maybe next week seeing if a 3 series kernel will
build on 17.4.1.

[Moderator caprea]

Helpful

Up

0

::

The nouveau-driver is now looking good.
If I understand you right you get a picture on your second monitor if it is plugged in on boot, but then only on the second monitor.What you would like to do is to switch between the monitors, right ?
Or does the second monitor never show an image ? If so, is there an adapter used ? Look also like linuxdaddy mentioned at some settings in bios for second monitor(vga-connection)

Does it help to activate the second monitor manually by one of the commands
xrandr --output VGA-1 --auto

xrandr --output LVDS-1 --off --output VGA-1 --auto

• This reply was modified 2 years, 3 months ago by caprea.

[Member zeh]

Helpful

Up

0

::

The situation now is as follows:
booting with modeset0, 2nd monitor unplugged – 2nd monitor not recognized after being plugged in
booting with modeset0, 2nd monitor plugged in – the system uses the 2nd monitor and doesn’t recognize laptop’s monitor
booting with modeset1, 2nd monitor unplugged – 2nd monitor recognized after being plugged in, however no image carried over
booting with modeset1, 2nd monitor plugged in – the system uses the 2nd monitor and the laptop’s monitor, the latter however with the brightness/back-lighting sort of dimmed and it can’t be changed

xrandr –output VGA-1 –auto didn’t do anything I could see
xrandr –output LVDS-1 –off –output VGA-1 –auto got me a black screen on the laptop’s monitor and nothing else I could see

[Moderator caprea]

Helpful

Up

0

::

Sorry i missed to mention, the bootparameter nouveau.modeset=0 prevents the nouveau driver from being used, so it’s contraproductive here.
So you you have to stick with nouveau.modeset=1, which does the opposite, for tests.

[Member zeh]

Helpful

Up

0

::

@ linuxdaddy

going on an adventure here over this weekend and next. first going to see if nvidia 96.43
will build on 4 series kernel then later maybe next week seeing if a 3 series kernel will
build on 17.4.1.

According to caprea the nouveau driver should work. It does already when I boot the system with the 2nd monitor plugged in.

@ caprea

So you you have to stick with nouveau.modeset=1, which does the opposite, for tests

OK, I will.

The problem is not solved yet, but I can already use the computer as I intended, even if with some limitations. Thank you both for your help. If I manage find any improvement I’ll post here.

[Author]

Posts