Separate X Screens - possible on Intel Integrated HD Graphics?

Felix Miata mrmazda at earthlink.net
Sat Jan 16 10:50:45 PST 2016


[why here and not the intel-gfx mailing list?].....

Ken Taylor composed on 2016-01-16 12:52 (UTC-0500):

> I do not need to be able to move open applications from one screen 
> (monitor) to the other. I start them on the screen (monitor) where I 
> wish to use them. And YES I can copy/paste data from an application on 
> one monitor to an application on the other - I do this all the time. I 
> routinely copy data from an application on one monitor on the host to a 
> virtual machine running on the other monitor.
 
> When I first created my separate X screens the second monitor did not 
> have panels. I created them and added the launchers for the applications 
> which I intended to run on that monitor.
 
> System; Preferences; Hardware; Display does NOT provide a way to 
> configure the monitors in away to accomplish these things (Ubuntu 9.10, 
> 10.04, 15.04, CentOS 7, CentOS 7).
 
> I appreciate all of the input folks are providing. However, I asked the 
> simple question if separate X screens could be configured on Intel 
> integrated graphics.  The discussion seems to have degenerated into "you 
> don't want to do" what I wish to do and "you should try something else."
 
> PLEASE if someone knows the answer YES or NO - tell me. If the answer is 
> no I will reserve the Intel graphics machines for single monitor or 
> headless use and use my Nvidia machines for dual hear use.

What you're asking has had me puzzled from the start. On multiple Intel video
output systems I have, as old as a SFF Dell Optiplex 780 with DisplayPort and
VGA and as new as Haswell with VGA, DVI and HDMI, either mirrored or extended
desktop configurations were no easier or harder to to with xorg.conf or xrandr
than with nouveau or radeon drivers. So, I don't get what the driver could
have to do with the "Individual Panels" you want (and I don't grok).

e.g.
#xrandr --dpi 108 --output DP1 --mode 1680x1050 --right-of VGA1 --output VGA1 --mode 1600x1200 # intel dual

is currently provding the following for Trinity Desktop on my Dell:
gx780:~ $ grep 'using VT' /var/log/Xorg.0.log
[   431.108] (--) using VT number 7
gx780:~ $ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 4 Series Chipset Integrated Graphics Controller (rev 03)
gx780:~ $ grep chipsets /var/log/Xorg.0.log | egrep -v 'VESA|FBDEV'
gx780:~ $ grep PRETTY /etc/os-release
PRETTY_NAME="openSUSE 13.2 (Harlequin) (x86_64)"
gx780:~ $ grep 'X.Org X Server' /var/log/Xorg.0.log
X.Org X Server 1.16.1
gx780:~ $ grep 'Current Operating System' /var/log/Xorg.0.log
[   431.062] Current Operating System: Linux gx780 3.16.6-2-desktop #1 SMP PREEMPT Mon Oct 20 13:47:22 UTC 2014 (feb42ea) x86_64
gx780:~ $ grep 'Kernel Command Line' /var/log/Xorg.0.log
[   431.062] Kernel command line: root=LABEL=17os13264 ipv6.disable=1 net.ifnames=0 noresume splash=0 vga=791 video=1024x768 at 60 3
gx780:~ $ grep Output /var/log/Xorg.0.log | egrep -v 'disconnec|no monit' | grep -v 'nitor sect'
[   431.112] (--) intel(0): Output VGA1 using initial mode 1024x768 on pipe 0
[   431.112] (--) intel(0): Output DP1 using initial mode 1024x768 on pipe 1
gx780:~ $ egrep -i "physical size|cm]" /var/log/Xorg.0.log
[   431.161] (II) intel(0): Setting screen physical size to 270 x 203
gx780:~ $ grep -v ^\# /etc/X11/xorg.conf.d/50-monitor.conf | grep DisplaySize
gx780:~ $ grep -v ^\# /etc/X11/xorg.conf | grep DisplaySize
grep: /etc/X11/xorg.conf: No such file or directory
gx780:~ $ grep -v ^\# /etc/X11/xorg.conf.d/50-monitor.conf | grep PreferredMode
gx780:~ $ grep -v ^\# /etc/X11/xorg.conf | grep PreferredMode
grep: /etc/X11/xorg.conf: No such file or directory
gx780:~ $ grep -v ^\# /etc/X11/xinit/xinitrd.d/setup | grep xrandr
xrandr --dpi 108 --output DP1 --mode 1680x1050 --right-of VGA1 --output VGA1 --mode 1600x1200 # intel dual
gx780:~ $ xrdb -query | grep dpi
gx780:~ $ xrandr | egrep 'onnect|creen|\*' | grep -v disconn | sort -r
VGA1 connected 1600x1200+0+0 (normal left inverted right x axis y axis) 388mm x 291mm
Screen 0: minimum 8 x 8, current 3280 x 1200, maximum 32767 x 32767
DP1 connected 1680x1050+1600+0 (normal left inverted right x axis y axis) 474mm x 296mm
   1680x1050     59.97*+  74.89
   1600x1200     85.00*   75.00    70.00    65.00    60.00
gx780:~ $ xdpyinfo | egrep 'dimen|ution'
  dimensions:    3280x1200 pixels (771x282 millimeters)
  resolution:    108x108 dots per inch

Could it be there is some limitation exclusive to Atom causing your frustration?
-- 
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/


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