28 Feb
2021
28 Feb
'21
20:53
Hi *,
I'd like to setup a machine with an internal Intel UHD630 device plus a PCIe
NVidia GTX750 card.
I started with the Intel device as single graphics adapter. With the attached
xorg-intel.conf everything works as expected, all screen and monitor sections
have been accepted by the X server and the plugged monitors show the
appropriate output streams.
Then I added the NVidia sections to this xorg.conf, named it xorg-
intel_nvidia.conf and things got strange. Screen 0, that has the nvidia device
attached , works as expected - the tv signal shows up on the tv.
But for the screens served by the intel device I get an error messages saying
"(EE) Screen 1 deleted because of no matching config section." - but the
sections contain exactly the same parameters as they have in the intel only
configuration, where they are working perfectly!?!?
Whats more, I still get Screen 1, but with some default settings. I don't get
Screen 2 at all.
I spent at least four days trying to find out whats going on here, but didn't
succeed. To make it even harder, every time I run xrandr for any of the
screens, the NVidia driver is dumping core 8-( This also doesn't happen with
the intel only setup.
Any idea whats up here?
Thx.
Bye.
Michael.
28 Feb
28 Feb
21:55
mh(a)mike.franken.de composed on 2021-02-28 21:53 (UTC+0100):
Any idea whats up here?
The two files can confict if both are present; IOW, one can override the other if
you forget. Building them from scratch is a beast as well.
<https://www.linuxquestions.org/questions/linux-hardware-18/twin-monitor-setup-doesn%27t-save-4175691266/#post6225610>
contains a two screen, one device configuration I made just this AM. Note that
there were no modelines or BusIDs required.
Are you sure you understand the X meaning of "Screen"? It's been a very
long time
since I've seen a valid config file with Screen 0, Screen 1 and Screen 2. Are these
3 screens supposed to comprise one X desktop?
Modelines in config files are anachronisms. CVT and GTF are no more competent than
the X servers in generating the required modelines, as long as EDID is valid, or
HorizSync and VertRefresh are provided in xorg.con*. Omitting modelines simplifies
composing a valid configuration, and can migrate automatically if a display gets
changed.
I have a GT 630 I could put into a suitable Intel Graphics box if I understood
what result you were trying for. When I need three displays I use three Intel IGP
connectors, usually DP, HDMI & DVI, with VGA available as an alternate to any of
the others. To configure I use a relatively simple xrandr command in a startup
script, e.g.:
xrandr --output DP-1 --mode 2560x1440 --primary --output HDMI-1 --mode 2560x1080 --above
DP-1 --output HDMI-2 --mode 1920x1200 --above HDMI-1 # HDMI-2 is actually DVI.
--
Evolution as taught in public schools, like religion,
is based on faith, not on science.
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata *** http://fm.no-ip.com/
1 Mar
1 Mar
10:36
Hi,
On Sonntag, 28. Februar 2021 22:55:57 CET Felix Miata wrote:
mh(a)mike.franken.de composed on 2021-02-28 21:53
(UTC+0100):
they are not present at the same time.
One of the config file names always has a trailing .inactive.
Any idea whats up here?
The two files can confict if both are present; IOW, one can override the
other if you forget. Building them from scratch is a beast as well.
<https://www.linuxquestions.org/questions/linux-hardware-18/twin-monitor-set
up-doesn%27t-save-4175691266/#post6225610> contains a two screen, one device
configuration I made just this AM. Note that there were no modelines or
BusIDs required.
I'll have a look, thx!
Are you sure you understand the X meaning of "Screen"? It's been a very
long
time since I've seen a valid config file with Screen 0, Screen 1 and Screen
2. Are these 3 screens supposed to comprise one X desktop?
No.
These screens are used for vdr (Video Disk Recorder) and the according vdr
plugins. One plugin (SoftHDDevice) uses screen 0 for outputting the tv signal,
the second one (a 7" TFT in an OrigenAE case ) shows information about the
actual program or the VDR menu, if open. This screen is used by a plugin named
GraphTFTNG. The third screen will be used for basic X tools like an xterm.
Screen 0 and 1 are running without any window manager - the screen is used
only for output. Probably sometimes these plugins won't need an X screen any
more, which would make it much easier to set them up.
Modelines in config files are anachronisms. CVT and GTF are no more
competent than the X servers in generating the required modelines, as long
as EDID is valid, or HorizSync and VertRefresh are provided in xorg.con*.
Omitting modelines simplifies composing a valid configuration, and can
migrate automatically if a display gets changed.
I started with a very simple config file, but ran into several problems.
One of them is, that the EDID information for the 7" TFT and for the Grundig
TV are wrong, the second one is, that I need the ZaphodHeads parameter,
because I need two separated screens for two ports of the Intel device.
I have a GT 630 I could put into a suitable Intel Graphics box if I
understood what result you were trying for. When I need three displays I
use three Intel IGP connectors, usually DP, HDMI & DVI, with VGA available
as an alternate to any of the others. To configure I use a relatively
simple xrandr command in a startup script, e.g.:
xrandr --output DP-1 --mode 2560x1440 --primary --output HDMI-1 --mode
2560x1080 --above DP-1 --output HDMI-2 --mode 1920x1200 --above HDMI-1 #
HDMI-2 is actually DVI.
This is one of my problems - everytime I run xrandr, the NVidia module is
dumping core 8-<
Regarding the Intel device: I'd like to use only this one without the NVidia
card (because I don't like their policy regarding the drivers), but at the
time being the Intel modules and/or the vdr plugins are not capable of using
hardware rendering of the tv signal with intel cards, whilst this works
perfectly with the NVidia hardware.
Just to be sure: You are starting your X server with an empty configuration
and the xrandr command is the only thing you have to do for setting up
everything?
Thx for this elaborated answer!
Bye.
Michael.
52
days inactive
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Felix Miata -
mh＠mike.franken.de