Resolution Won't Change on Headless Linux Box? Post: 302996461

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Top Forums UNIX for Beginners Questions & Answers Resolution Won't Change on Headless Linux Box? Post 302996461 by mrm5102 on Wednesday 26th of April 2017 12:57:41 PM

04-26-2017

Registered User

Resolution Won't Change on Headless Linux Box?

Hello All,

Wasn't sure if I was supposed to post this under Hardware so posting here...

Device: CuBox-i
OS: OpenSuSE 13.1
Uname: Linux CuBox-PC 3.14.14-cubox-i #1 SMP Sat Sep 13 03:48:24 UTC 2014 armv7l armv7l armv7l GNU/Linux
Window Manager: XFCE
Display Manager: lightdm (*XDM?)

I have a few of these devices in our remote branch office locations for network management and I can connect to them via SSH or VNC. I am using x11vnc for remote vnc access so I can control Screen :0 of the device.

By default the device does not have an xorg.conf file.

So without connecting a monitor to the HDMI port (*which is the only display port), it defaults to 1920x1080. After many many attempts to change the resolution via xrandr I have been unable to do so. I attempted creating new modes for just about every common resolution I can think of using "cvt" and "gtf" but each time it fails to change the resolution.

In reading a few other posts I downloaded and installed the Xorg dummy driver and created an xorg.conf file so it could use the driver. But, the largest display size that would work with this driver was 1024x768. All attempts to add new resolutions and then use them failed. I was able to add new resolutions that display in xrandr's output, but when attempting to switch to them it would fail.

Here's an Example using Default Settings (*i.e. no dummy driver and no xorg.conf file):

Code:

CuBox-PC:~ # xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected 1920x1080+0+0 0mm x 0mm
   1920x1080      60.0* 
CuBox-PC:~ #
CuBox-PC:~ # cvt 1600 900 60
# 1600x900 59.95 Hz (CVT 1.44M9) hsync: 55.99 kHz; pclk: 118.25 MHz
Modeline "1600x900_60.00"  118.25  1600 1696 1856 2112  900 903 908 934 -hsync +vsync
CuBox-PC:~ #
CuBox-PC:~ # xrandr --newmode "1600x900"  118.25  1600 1696 1856 2112  900 903 908 934 -hsync +vsync
xrandr: Failed to get size of gamma for output default
CuBox-PC:~ # xrandr --addmode default "1600x900"
xrandr: Failed to get size of gamma for output default
CuBox-PC:~ # 
CuBox-PC:~ # xrandr --verbose
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1600 x 900, current 1920 x 1080, maximum 1920 x 1080
default connected 1920x1080+0+0 (0x17a) normal (normal) 0mm x 0mm
    Identifier: 0x179
    Timestamp:  64566553
    Subpixel:   unknown
    Clones:    
    CRTC:       0
    CRTCs:      0
    Transform:  1.000000 0.000000 0.000000
                0.000000 1.000000 0.000000
                0.000000 0.000000 1.000000
               filter: 
  1920x1080 (0x17a)  124.4MHz *current
        h: width  1920 start    0 end    0 total 1920 skew    0 clock   64.8KHz
        v: height 1080 start    0 end    0 total 1080           clock   60.0Hz
  1600x900 (0x1cc)  118.2MHz -HSync +VSync
        h: width  1600 start 1696 end 1856 total 2112 skew    0 clock   56.0KHz
        v: height  900 start  903 end  908 total  934           clock   59.9Hz
CuBox-PC:~ # 
CuBox-PC:~ # xrandr --output default --mode 1600x900
xrandr: Failed to get size of gamma for output default
xrandr: Configure crtc 0 failed
CuBox-PC:~ #

I believe the default driver used is something like "mxc_hdmi". I haven't tried creating an xorg.conf file using that as the driver. But, not sure if it would make a difference if it was in a xorg.conf file if it's not working with xrandr...

If anyone has any thoughts or suggestion, it would be greatly appreciated!

Thanks in Advance,
Matt

mrm5102

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LEARN ABOUT CENTOS

datetime::locale::en_gu

DateTime::Locale::en_GU(3)				User Contributed Perl Documentation				DateTime::Locale::en_GU(3)

NAME

       DateTime::Locale::en_GU

SYNOPSIS

	 use DateTime;

	 my $dt = DateTime->now( locale => 'en_GU' );
	 print $dt->month_name();

DESCRIPTION

       This is the DateTime locale package for English Guam.

DATA

       This locale inherits from the DateTime::Locale::en locale.

       It contains the following data.

   Days
       Wide (format)

	 Monday
	 Tuesday
	 Wednesday
	 Thursday
	 Friday
	 Saturday
	 Sunday

       Abbreviated (format)

	 Mon
	 Tue
	 Wed
	 Thu
	 Fri
	 Sat
	 Sun

       Narrow (format)

	 M
	 T
	 W
	 T
	 F
	 S
	 S

       Wide (stand-alone)

	 Monday
	 Tuesday
	 Wednesday
	 Thursday
	 Friday
	 Saturday
	 Sunday

       Abbreviated (stand-alone)

	 Mon
	 Tue
	 Wed
	 Thu
	 Fri
	 Sat
	 Sun

       Narrow (stand-alone)

	 M
	 T
	 W
	 T
	 F
	 S
	 S

   Months
       Wide (format)

	 January
	 February
	 March
	 April
	 May
	 June
	 July
	 August
	 September
	 October
	 November
	 December

       Abbreviated (format)

	 Jan
	 Feb
	 Mar
	 Apr
	 May
	 Jun
	 Jul
	 Aug
	 Sep
	 Oct
	 Nov
	 Dec

       Narrow (format)

	 J
	 F
	 M
	 A
	 M
	 J
	 J
	 A
	 S
	 O
	 N
	 D

       Wide (stand-alone)

	 January
	 February
	 March
	 April
	 May
	 June
	 July
	 August
	 September
	 October
	 November
	 December

       Abbreviated (stand-alone)

	 Jan
	 Feb
	 Mar
	 Apr
	 May
	 Jun
	 Jul
	 Aug
	 Sep
	 Oct
	 Nov
	 Dec

       Narrow (stand-alone)

	 J
	 F
	 M
	 A
	 M
	 J
	 J
	 A
	 S
	 O
	 N
	 D

   Quarters
       Wide (format)

	 1st quarter
	 2nd quarter
	 3rd quarter
	 4th quarter

       Abbreviated (format)

	 Q1
	 Q2
	 Q3
	 Q4

       Narrow (format)

	 1
	 2
	 3
	 4

       Wide (stand-alone)

	 1st quarter
	 2nd quarter
	 3rd quarter
	 4th quarter

       Abbreviated (stand-alone)

	 Q1
	 Q2
	 Q3
	 Q4

       Narrow (stand-alone)

	 1
	 2
	 3
	 4

   Eras
       Wide

	 Before Christ
	 Anno Domini

       Abbreviated

	 BC
	 AD

       Narrow

	 B
	 A

   Date Formats
       Full

	  2008-02-05T18:30:30 = Tuesday, February 5, 2008
	  1995-12-22T09:05:02 = Friday, December 22, 1995
	 -0010-09-15T04:44:23 = Saturday, September 15, -10

       Long

	  2008-02-05T18:30:30 = February 5, 2008
	  1995-12-22T09:05:02 = December 22, 1995
	 -0010-09-15T04:44:23 = September 15, -10

       Medium

	  2008-02-05T18:30:30 = Feb 5, 2008
	  1995-12-22T09:05:02 = Dec 22, 1995
	 -0010-09-15T04:44:23 = Sep 15, -10

       Short

	  2008-02-05T18:30:30 = 2/5/08
	  1995-12-22T09:05:02 = 12/22/95
	 -0010-09-15T04:44:23 = 9/15/-10

       Default

	  2008-02-05T18:30:30 = Feb 5, 2008
	  1995-12-22T09:05:02 = Dec 22, 1995
	 -0010-09-15T04:44:23 = Sep 15, -10

   Time Formats
       Full

	  2008-02-05T18:30:30 = 6:30:30 PM UTC
	  1995-12-22T09:05:02 = 9:05:02 AM UTC
	 -0010-09-15T04:44:23 = 4:44:23 AM UTC

       Long

	  2008-02-05T18:30:30 = 6:30:30 PM UTC
	  1995-12-22T09:05:02 = 9:05:02 AM UTC
	 -0010-09-15T04:44:23 = 4:44:23 AM UTC

       Medium

	  2008-02-05T18:30:30 = 6:30:30 PM
	  1995-12-22T09:05:02 = 9:05:02 AM
	 -0010-09-15T04:44:23 = 4:44:23 AM

       Short

	  2008-02-05T18:30:30 = 6:30 PM
	  1995-12-22T09:05:02 = 9:05 AM
	 -0010-09-15T04:44:23 = 4:44 AM

       Default

	  2008-02-05T18:30:30 = 6:30:30 PM
	  1995-12-22T09:05:02 = 9:05:02 AM
	 -0010-09-15T04:44:23 = 4:44:23 AM

   Datetime Formats
       Full

	  2008-02-05T18:30:30 = Tuesday, February 5, 2008 6:30:30 PM UTC
	  1995-12-22T09:05:02 = Friday, December 22, 1995 9:05:02 AM UTC
	 -0010-09-15T04:44:23 = Saturday, September 15, -10 4:44:23 AM UTC

       Long

	  2008-02-05T18:30:30 = February 5, 2008 6:30:30 PM UTC
	  1995-12-22T09:05:02 = December 22, 1995 9:05:02 AM UTC
	 -0010-09-15T04:44:23 = September 15, -10 4:44:23 AM UTC

       Medium

	  2008-02-05T18:30:30 = Feb 5, 2008 6:30:30 PM
	  1995-12-22T09:05:02 = Dec 22, 1995 9:05:02 AM
	 -0010-09-15T04:44:23 = Sep 15, -10 4:44:23 AM

       Short

	  2008-02-05T18:30:30 = 2/5/08 6:30 PM
	  1995-12-22T09:05:02 = 12/22/95 9:05 AM
	 -0010-09-15T04:44:23 = 9/15/-10 4:44 AM

       Default

	  2008-02-05T18:30:30 = Feb 5, 2008 6:30:30 PM
	  1995-12-22T09:05:02 = Dec 22, 1995 9:05:02 AM
	 -0010-09-15T04:44:23 = Sep 15, -10 4:44:23 AM

   Available Formats
       d (d)

	  2008-02-05T18:30:30 = 5
	  1995-12-22T09:05:02 = 22
	 -0010-09-15T04:44:23 = 15

       EEEd (d EEE)

	  2008-02-05T18:30:30 = 5 Tue
	  1995-12-22T09:05:02 = 22 Fri
	 -0010-09-15T04:44:23 = 15 Sat

       Hm (H:mm)

	  2008-02-05T18:30:30 = 18:30
	  1995-12-22T09:05:02 = 9:05
	 -0010-09-15T04:44:23 = 4:44

       hm (h:mm a)

	  2008-02-05T18:30:30 = 6:30 PM
	  1995-12-22T09:05:02 = 9:05 AM
	 -0010-09-15T04:44:23 = 4:44 AM

       Hms (H:mm:ss)

	  2008-02-05T18:30:30 = 18:30:30
	  1995-12-22T09:05:02 = 9:05:02
	 -0010-09-15T04:44:23 = 4:44:23

       hms (h:mm:ss a)

	  2008-02-05T18:30:30 = 6:30:30 PM
	  1995-12-22T09:05:02 = 9:05:02 AM
	 -0010-09-15T04:44:23 = 4:44:23 AM

       M (L)

	  2008-02-05T18:30:30 = 2
	  1995-12-22T09:05:02 = 12
	 -0010-09-15T04:44:23 = 9

       Md (M/d)

	  2008-02-05T18:30:30 = 2/5
	  1995-12-22T09:05:02 = 12/22
	 -0010-09-15T04:44:23 = 9/15

       MEd (E, M/d)

	  2008-02-05T18:30:30 = Tue, 2/5
	  1995-12-22T09:05:02 = Fri, 12/22
	 -0010-09-15T04:44:23 = Sat, 9/15

       MMM (LLL)

	  2008-02-05T18:30:30 = Feb
	  1995-12-22T09:05:02 = Dec
	 -0010-09-15T04:44:23 = Sep

       MMMd (MMM d)

	  2008-02-05T18:30:30 = Feb 5
	  1995-12-22T09:05:02 = Dec 22
	 -0010-09-15T04:44:23 = Sep 15

       MMMEd (E, MMM d)

	  2008-02-05T18:30:30 = Tue, Feb 5
	  1995-12-22T09:05:02 = Fri, Dec 22
	 -0010-09-15T04:44:23 = Sat, Sep 15

       MMMMd (MMMM d)

	  2008-02-05T18:30:30 = February 5
	  1995-12-22T09:05:02 = December 22
	 -0010-09-15T04:44:23 = September 15

       MMMMEd (E, MMMM d)

	  2008-02-05T18:30:30 = Tue, February 5
	  1995-12-22T09:05:02 = Fri, December 22
	 -0010-09-15T04:44:23 = Sat, September 15

       ms (mm:ss)

	  2008-02-05T18:30:30 = 30:30
	  1995-12-22T09:05:02 = 05:02
	 -0010-09-15T04:44:23 = 44:23

       y (y)

	  2008-02-05T18:30:30 = 2008
	  1995-12-22T09:05:02 = 1995
	 -0010-09-15T04:44:23 = -10

       yM (M/yyyy)

	  2008-02-05T18:30:30 = 2/2008
	  1995-12-22T09:05:02 = 12/1995
	 -0010-09-15T04:44:23 = 9/-010

       yMEd (EEE, M/d/yyyy)

	  2008-02-05T18:30:30 = Tue, 2/5/2008
	  1995-12-22T09:05:02 = Fri, 12/22/1995
	 -0010-09-15T04:44:23 = Sat, 9/15/-010

       yMMM (MMM y)

	  2008-02-05T18:30:30 = Feb 2008
	  1995-12-22T09:05:02 = Dec 1995
	 -0010-09-15T04:44:23 = Sep -10

       yMMMEd (EEE, MMM d, y)

	  2008-02-05T18:30:30 = Tue, Feb 5, 2008
	  1995-12-22T09:05:02 = Fri, Dec 22, 1995
	 -0010-09-15T04:44:23 = Sat, Sep 15, -10

       yMMMM (MMMM y)

	  2008-02-05T18:30:30 = February 2008
	  1995-12-22T09:05:02 = December 1995
	 -0010-09-15T04:44:23 = September -10

       yQ (Q yyyy)

	  2008-02-05T18:30:30 = 1 2008
	  1995-12-22T09:05:02 = 4 1995
	 -0010-09-15T04:44:23 = 3 -010

       yQQQ (QQQ y)

	  2008-02-05T18:30:30 = Q1 2008
	  1995-12-22T09:05:02 = Q4 1995
	 -0010-09-15T04:44:23 = Q3 -10

   Miscellaneous
       Prefers 24 hour time?

       No

       Local first day of the week

       Sunday

SUPPORT

       See DateTime::Locale.

AUTHOR

       Dave Rolsky <autarch@urth.org>

COPYRIGHT

       Copyright (c) 2008 David Rolsky. All rights reserved. This program is free software; you can redistribute it and/or modify it under the
       same terms as Perl itself.

       This module was generated from data provided by the CLDR project, see the LICENSE.cldr in this distribution for details on the CLDR data's
       license.

perl v5.16.3							    2014-06-10						DateTime::Locale::en_GU(3)

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