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#1 2016-08-08 08:49:51

domfinn
Member
Registered: 2016-01-24
Posts: 3

HDPI Multimonitor Display

I have followed these guides with no luck in displaying correct resolution on an external monitor of:
https://wiki.archlinux.org/index.php/Hi … e_displays
https://wiki.archlinux.org/index.php/Bu … e_monitors
https://wiki.archlinux.org/index.php/De … 5#Graphics

In the Dell specific link, i disabled the NVIDIA card so i am running intel only. I'm pulling my hair out trying to figure this out. Any help at all with the issue will be greatly appreciated.

Hardware:

Manufacturer: Dell Inc.
Product Name: XPS 15 9550
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06)
01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 960M] (rev a2)

Arch:

Linux 4.6.4-1-ARCH #1 SMP PREEMPT Mon Jul 11 19:12:32 CEST 2016 x86_64 GNU/Linux
xrandr -q
Screen 0: minimum 8 x 8, current 3840 x 3240, maximum 32767 x 32767
eDP1 connected primary 3840x2160+0+1080 (normal left inverted right x axis y axis) 350mm x 190mm
   3840x2160     60.00*+
   3200x1800     60.00  
   2880x1620     60.00  
   2560x1440     60.00  
   2048x1536     60.00  
   1920x1440     60.00  
   1856x1392     60.01  
   1792x1344     60.01  
   2048x1152     60.00  
   1920x1080     60.00  
   1600x1200     60.00  
   1400x1050     59.98  
   1600x900      60.00  
   1280x1024     60.02  
   1280x960      60.00  
   1368x768      60.00  
   1280x720      60.00  
   1024x768      60.00  
   1024x576      60.00  
   960x540       60.00  
   800x600       60.32    56.25  
   864x486       60.00  
   640x480       59.94  
   720x405       60.00  
   640x360       60.00  
DP1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI1 connected 1920x1080+1036+0 (normal left inverted right x axis y axis) 480mm x 270mm
   1920x1080     60.00*+
   1280x1024     75.02    60.02  
   1440x900      59.90  
   1280x800      59.91  
   1152x864      75.00  
   1024x768      70.07    60.00  
   800x600       60.32    56.25  
   640x480       66.67    59.94  
   720x400       70.08  
HDMI2 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
cat /etc/X11/xorg.conf.d/20-intel.conf 
Section "Device"
   Identifier  "Intel Graphics"
   Driver      "intel"
   Option      "TearFree"    "true"
EndSection

Last edited by domfinn (2016-08-08 10:36:32)

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#2 2016-08-10 15:55:05

aposteeltje
Member
From: Netherlands
Registered: 2013-01-29
Posts: 11

Re: HDPI Multimonitor Display

Hi,
I'm using a laptop with a attached 27" hdmi screen.,
so i also have a multimonitor config., and set it up like this:
LVDS1= the screen of the laptop., and HDMI1 is, ofcourse my attached screen:

# cat /etc/X11/xorg.conf.d/10-monitor.conf
Section "Monitor"
    Identifier  "HDMI1"
    Option      "PreferredMode" "1920x1080"
EndSection

Section "Monitor"
    Identifier  "LVDS1"
    Option      "PreferredMode" "1600x900"
    Option      "Primary" "true"
    Option      "LeftOf" "HDMI1"
EndSection

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#3 2016-08-11 00:25:47

domfinn
Member
Registered: 2016-01-24
Posts: 3

Re: HDPI Multimonitor Display

Hi aposteeltje,

Thanks for your reply.

I have copied and adjusted settings to suit my hardware. Still no luck, are you running Gnome? im wondering if GDM may have something to do this because its over riding the position of the monitor also. My secondary monitor is above my laptop, even tho i used your settings of

 Option      "LeftOf" "HDMI1"

Also are you running integrated and dedicated GPU?

Thanks

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#4 2016-08-11 00:31:20

aposteeltje
Member
From: Netherlands
Registered: 2013-01-29
Posts: 11

Re: HDPI Multimonitor Display

This is DE/WM independent, because we're editing Xorg here.
I'm running i3 next- gaps, and using SDDM as DM (Display Manager)
Using a acer aspire Notebook, with integraded Intel Graphics GPU

Last edited by aposteeltje (2016-08-11 01:20:03)

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#5 2016-08-11 01:24:27

domfinn
Member
Registered: 2016-01-24
Posts: 3

Re: HDPI Multimonitor Display

Ok Thanks,

Any suggestions?

How can i tell what the bus ID of my HDMI out is? or tell what GPU is associated with it? (i cant find this info anywhere)

I have a feeling it may be something to do with the multiple GPU's

00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06) (prog-if 00 [VGA controller])
	Subsystem: Dell Device 06e4
	Flags: bus master, fast devsel, latency 0, IRQ 134
	Memory at db000000 (64-bit, non-prefetchable) [size=16M]
	Memory at 70000000 (64-bit, prefetchable) [size=256M]
	I/O ports at f000 [size=64]
	[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
	Capabilities: [40] Vendor Specific Information: Len=0c <?>
	Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
	Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit-
	Capabilities: [d0] Power Management version 2
	Capabilities: [100] Process Address Space ID (PASID)
	Capabilities: [200] Address Translation Service (ATS)
	Capabilities: [300] Page Request Interface (PRI)
	Kernel driver in use: i915
	Kernel modules: i915

~$ sudo lspci -v -s 0000:01:00.0
01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 960M] (rev a2)
	Subsystem: Dell Device 06e4
	Flags: bus master, fast devsel, latency 0, IRQ 135
	Memory at dc000000 (32-bit, non-prefetchable) [size=16M]
	Memory at b0000000 (64-bit, prefetchable) [size=256M]
	Memory at c0000000 (64-bit, prefetchable) [size=32M]
	I/O ports at e000 [size=128]
	Expansion ROM at dd000000 [disabled] [size=512K]
	Capabilities: [60] Power Management version 3
	Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
	Capabilities: [78] Express Endpoint, MSI 00
	Capabilities: [100] Virtual Channel
	Capabilities: [250] Latency Tolerance Reporting
	Capabilities: [258] L1 PM Substates
	Capabilities: [128] Power Budgeting <?>
	Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
	Capabilities: [900] #19
	Kernel driver in use: nouveau
	Kernel modules: nouveau

Any advice would be great, thanks.

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