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mitzekotze

Member

Registered: 2009-09-14

Posts: 5

[SOLVED] xrandr shows a none existing VGA output

Hi,

xrandr shows me two VGA outputs: VGA-1 and VGA-1-2. VGA-1 is an existing output whereas VGA-1-2 is not. VGA-1-2 as always a max resolution of 1024x768. My problem is now, that this none existing output gets detected by herbstluftwm (auto_detect_monitors is set to 1) as the second monitor and it creates a virtual one with the detected resolution of 1024x768. This is obviously not what I want, since the true resolution is 1680x1050 (for my currently connected monitor on VGA-1).

I have actually two graphic cards in my machine:

• GeForce GT 540M

• Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller

I'm using the xf86-video-nouveau driver with version 1.0.15-2

Has anyone encounter that problem before and know how to fix it?

If anyone is interested, this is the output of lspci:

00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5)
00:1c.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 (rev b5)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port Mobile SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [GeForce GT 540M] (rev a1)
03:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000 [Condor Peak]
04:00.0 USB controller: Fresco Logic FL1000G USB 3.0 Host Controller (rev 04)
05:00.0 Ethernet controller: Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet (rev c0)

This is the output of xrandr:

Screen 0: minimum 320 x 200, current 3280 x 1050, maximum 8192 x 8192
LVDS-1 connected primary 1600x900+1680+0 (normal left inverted right x axis y axis) 382mm x 214mm
   1600x900      60.00*+  59.99    59.94    59.95    59.82  
   1400x900      59.96    59.88  
   1440x810      60.00    59.97  
   1368x768      59.88    59.85  
   1280x800      59.99    59.97    59.81    59.91  
   1280x720      60.00    59.99    59.86    59.74  
   1024x768      60.04    60.00  
   960x720       60.00  
   928x696       60.05  
   896x672       60.01  
   1024x576      59.95    59.96    59.90    59.82  
   960x600       59.93    60.00  
   960x540       59.96    59.99    59.63    59.82  
   800x600       60.00    60.32    56.25  
   840x525       60.01    59.88  
   864x486       59.92    59.57  
   700x525       59.98  
   800x450       59.95    59.82  
   640x512       60.02  
   700x450       59.96    59.88  
   640x480       60.00    59.94  
   720x405       59.51    58.99  
   684x384       59.88    59.85  
   640x400       59.88    59.98  
   640x360       59.86    59.83    59.84    59.32  
   512x384       60.00  
   512x288       60.00    59.92  
   480x270       59.63    59.82  
   400x300       60.32    56.34  
   432x243       59.92    59.57  
   320x240       60.05  
   360x202       59.51    59.13  
   320x180       59.84    59.32  
VGA-1 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 433mm x 271mm
   1680x1050     59.88*+
   1280x1024     75.02    60.02  
   1280x960      60.00  
   1152x864      75.00  
   1024x768      75.03    70.07    60.00  
   832x624       74.55  
   800x600       72.19    75.00    60.32    56.25  
   640x480       75.00    72.81    66.67    59.94  
   720x400       70.08  
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
VGA-1-2 connected 1024x768+1680+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768      60.00* 
   800x600       60.32    56.25  
   848x480       60.00  
   640x480       59.94  
  1024x768 (0x63) 65.000MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1344 skew    0 clock  48.36KHz
        v: height  768 start  771 end  777 total  806           clock  60.00Hz
  800x600 (0x64) 40.000MHz +HSync +VSync
        h: width   800 start  840 end  968 total 1056 skew    0 clock  37.88KHz
        v: height  600 start  601 end  605 total  628           clock  60.32Hz
  800x600 (0x65) 36.000MHz +HSync +VSync
        h: width   800 start  824 end  896 total 1024 skew    0 clock  35.16KHz
        v: height  600 start  601 end  603 total  625           clock  56.25Hz
  640x480 (0x67) 25.175MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock  31.47KHz
        v: height  480 start  490 end  492 total  525           clock  59.94Hz

Last edited by mitzekotze (2018-05-10 09:53:56)

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radiomike

Member

Registered: 2013-12-19

Posts: 73

Re: [SOLVED] xrandr shows a none existing VGA output

Have a look at the wiki, under nouveau there's a section about phantom outputs.

mitzekotze

Member

Registered: 2009-09-14

Posts: 5

Re: [SOLVED] xrandr shows a none existing VGA output

Hey radiomike, thanks for the hint. I disabled VGA-1-2 and now everything is working as intended.

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Try walking in my shoes.