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Anne Wilson

2008-Feb-18 17:24 UTC

[CentOS] system-config-display wrongly sets up Viewsonic VG730m monitor

I originally set up this monitor with an analogue lead.  Everything seemed 
fine, so I didn't check xorg.conf at all.  Then I bought a digital lead, and
since then the monitor blinks.  Running system-config-display identifies it 
as a 1280 x 1084 CRT monitor.  It is an LCD monitor.

That model is not on the drop-down list, so assuming that a specific driver 
wasn't available for it, I tried telling system-config-display that it is a 
generic LCD 1280 x 1024 monitor - restarted X, then went back to 
system-config-display, where it showed up as a CRT monitor.

The refresh rate set was way outside the manufacturer's recommendations
(1280
x 1024 @ 60Hz). so I tried manually setting refresh rates to match the 
manual's recommendations.  At the moment my xorg.conf has

 ### Comment all HorizSync and VertSync values to use DDC:
        Identifier   "Monitor0"
        ModelName    "Monitor 1280x1024"
 ### Comment all HorizSync and VertSync values to use DDC:
        HorizSync    60.0 - 72.0
        VertRefresh  60.0 - 72.0
        Option      "dpms"
EndSection

Section "Device"
        Identifier  "Videocard0"
        Driver      "nv"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "Videocard0"
        Monitor    "Monitor0"
        DefaultDepth     16
        SubSection "Display"
                Viewport   0 0
                Depth     24
        EndSubSection
        SubSection "Display"
                Viewport   0 0
                Depth     16
        EndSubSection
EndSection

Attached is the relevant part of the specification page.  Any advice, please?

Anne



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Bob Beers

2008-Feb-18 18:44 UTC

head link

[CentOS] system-config-display wrongly sets up Viewsonic VG730m monitor

On Feb 18, 2008 12:24 PM, Anne Wilson <cannewilson at googlemail.com>
wrote:
> Any advice, please?
I am not an expert, but maybe ...

>  ### Comment all HorizSync and VertSync values to use DDC:
>        Identifier   "Monitor0"
>        ModelName    "Monitor 1280x1024"
>  ### Comment all HorizSync and VertSync values to use DDC:

^^^^ try what it says above or, from the spec sheet, use

>
>        HorizSync    60.0 - 72.0

HorizSync    30 - 82

>
>        VertRefresh  60.0 - 72.0

VertRefresh  56 - 75

>
>        Option      "dpms"
> EndSection
>
> Section "Device"
>        Identifier  "Videocard0"
>        Driver      "nv"
> EndSection
>
> Section "Screen"
>        Identifier "Screen0"
>        Device     "Videocard0"
>        Monitor    "Monitor0"
>        DefaultDepth     16
>        SubSection "Display"
>                Viewport   0 0
>                Depth     24
>        EndSubSection
>        SubSection "Display"
>                Viewport   0 0
>                Depth     16
>        EndSubSection
> EndSection
>
>HTH,
-Bob
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Terry Polzin

2008-Feb-18 18:49 UTC

head link

[CentOS] system-config-display wrongly sets up Viewsonic VG730m monitor

On Monday 18 February 2008 12:24, Anne Wilson wrote:> I originally set up this monitor with an analogue lead.  Everything seemed
> fine, so I didn't check xorg.conf at all.  Then I bought a digital
lead,
> and since then the monitor blinks.  Running system-config-display
> identifies it as a 1280 x 1084 CRT monitor.  It is an LCD monitor.
>
> That model is not on the drop-down list, so assuming that a specific driver
> wasn't available for it, I tried telling system-config-display that it
is a
> generic LCD 1280 x 1024 monitor - restarted X, then went back to
> system-config-display, where it showed up as a CRT monitor.
>
> The refresh rate set was way outside the manufacturer's recommendations
> (1280 x 1024 @ 60Hz). so I tried manually setting refresh rates to match
> the manual's recommendations.  At the moment my xorg.conf has
>
>  ### Comment all HorizSync and VertSync values to use DDC:
>         Identifier   "Monitor0"
>         ModelName    "Monitor 1280x1024"
>  ### Comment all HorizSync and VertSync values to use DDC:
>         HorizSync    60.0 - 72.0
>         VertRefresh  60.0 - 72.0
>         Option      "dpms"
> EndSection
>
> Section "Device"
>         Identifier  "Videocard0"
>         Driver      "nv"
> EndSection
>
> Section "Screen"
>         Identifier "Screen0"
>         Device     "Videocard0"
>         Monitor    "Monitor0"
>         DefaultDepth     16
>         SubSection "Display"
>                 Viewport   0 0
>                 Depth     24
>         EndSubSection
>         SubSection "Display"
>                 Viewport   0 0
>                 Depth     16
>         EndSubSection
> EndSection
>
> Attached is the relevant part of the specification page.  Any advice,
> please?
>
> AnneHave you tried running system-config-display --reconfig?

The reconfig argument starts with a fresh config file and seems to detect the 
hardware better.
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Anne Wilson

2008-Feb-18 19:27 UTC

head link

[CentOS] system-config-display wrongly sets up Viewsonic VG730m monitor

On Monday 18 February 2008 18:44, Bob Beers wrote:> > ?### Comment all HorizSync and VertSync values to use DDC:
> > ? ? ? ?Identifier ? "Monitor0"
> > ? ? ? ?ModelName ? ?"Monitor 1280x1024"
> > ?### Comment all HorizSync and VertSync values to use DDC:
>
> ^^^^ try what it says above or
I didn't know what DDC is.  After checking it sounded promising, so I tried 
it.  Unfortunately it didn't help.
> HorizSync    30 - 82
> >
> >       VertRefresh  60.0 - 72.0
> VertRefresh  56 - 75
Tried that as well.  It's still blinking.

Anne

Anne Wilson

2008-Feb-18 19:29 UTC

head link

[CentOS] system-config-display wrongly sets up Viewsonic VG730m monitor

On Monday 18 February 2008 18:49, Terry Polzin wrote:> Have you tried running system-config-display --reconfig?
>
> The reconfig argument starts with a fresh config file and seems to detect
> the hardware better.
That writes an xorg.conf with no monitor lines at all, then gives you the 
option of Generic CRT or Generic LCD.  I chose the right resolution f rom the 
LCD list and re-started X.  Unfortunately it's still blinking.

Anne

Johnny Hughes

2008-Feb-19 13:02 UTC

head link

[CentOS] system-config-display wrongly sets up Viewsonic VG730m monitor

Anne Wilson wrote:

<snip>
>  ### Comment all HorizSync and VertSync values to use DDC:
>         Identifier   "Monitor0"
>         ModelName    "Monitor 1280x1024"
>  ### Comment all HorizSync and VertSync values to use DDC:
>         HorizSync    60.0 - 72.0
>         VertRefresh  60.0 - 72.0
>         Option      "dpms"
> EndSection
> 
> Section "Device"
>         Identifier  "Videocard0"
>         Driver      "nv"
> EndSection
> 
> Section "Screen"
>         Identifier "Screen0"
>         Device     "Videocard0"
>         Monitor    "Monitor0"
>         DefaultDepth     16
>         SubSection "Display"
>                 Viewport   0 0
>                 Depth     24
>         EndSubSection
>         SubSection "Display"
>                 Viewport   0 0
>                 Depth     16
>         EndSubSection
> EndSection
try this:
#
   ### Comment all HorizSync and VertSync values to use DDC:
          Identifier   "Monitor0"
          ModelName    "Monitor 1280x1024"
   ### Comment all HorizSync and VertSync values to use DDC:
          HorizSync    30.0 - 82.0
          VertRefresh  56.0 - 75.0
          Option      "dpms"
EndSection

Section "Device"
          Identifier  "Videocard0"
          Driver      "nv"
EndSection

Section "Screen"
          Identifier "Screen0"
          Device     "Videocard0"
          Monitor    "Monitor0"
          DefaultDepth     16
     SubSection     "Display"
         Viewport    0 0
         Depth       24
         Modes      "1280x1024" "1280x960"
"1280x800" "1152x864"
"1152x768" "1024x768" "800x600"
"640x480"
     EndSubSection
     SubSection     "Display"
         Viewport    0 0
         Depth       16
         Modes      "1280x1024" "1280x960"
"1280x800" "1152x864"
"1152x768" "1024x768" "800x600"
"640x480"
     EndSubSection
EndSection
#

(the "modes" lines will wrap ... but all the resolutions should be all
on one line, separated by spaces and inside quotes)

Also, if "DefaultDepth 16" does not work, try "DefaultDepth
24"

You say that you bought a digital lead ... meaning I guess that you are 
using a different PORT on your video card and monitor.  It is possible 
that he standard "nv" driver does not support that port on your video 
card and that you will need to instead download the proprietary drivers 
from nvidia's website to get that port to function.  Regardless of which 
driver and cable you use, the resolution/freq of the screen is going to 
be the same ... why not just use the old cable :D

Thanks,
Johnny Hughes

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Anne Wilson

2008-Feb-21 09:56 UTC

head link

[CentOS] system-config-display wrongly sets up Viewsonic VG730m monitor

On Tuesday 19 February 2008 13:02, Johnny Hughes wrote:>
> You say that you bought a digital lead ... meaning I guess that you are
> using a different PORT on your video card and monitor.  It is possible
> that he standard "nv" driver does not support that port on your
video
> card and that you will need to instead download the proprietary drivers
> from nvidia's website to get that port to function.  Regardless of
which
> driver and cable you use, the resolution/freq of the screen is going to
> be the same ... why not just use the old cable :D
>Hi, Johnny.  Sorry for the delay in answering, but I was trying to make sure 
that I had a fair amount of time to work with the server.

Before I read your message I had the bright idea of seeing what knoppix 
thought about the monitor.  The result was surprising.  Attached is what it 
reported.  I fed that info into xorg.conf and hoped.  Unfortunately I am 
still seeing the blink from time to time, though.

Maybe you are right about the driver not handling the dvi port correctly.  I 
really didn't want to go down the route of the proprietary drivers, so maybe
I will have to go back to the analogue cable.

I will try your version this morning and let you know whether it helps.  This 
is the last ditch.  If it doesn't help, I'll change the cable back and
re-run
system-config-display.

Thanks again

Anne


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# Auto-generated by KNOPPIX mkxf86config

Section "Monitor"
	Identifier	"Monitor0"
	Option	"DPMS"	"true"
	VendorName	"VSC"
	ModelName	"VSC951e"
	HorizSync 30 - 82 # DDC-probed
	VertRefresh 50 - 75 # DDC-probed
	# These are the DDC-probed settings reported by your monitor.
	# 1280x1024, 75.0Hz; hfreq=79.98, vfreq=75.03
	ModeLine "1280x1024"	135.00 1280 1296 1440 1688 1024 1025 1028 1066
+hsync +vsync
	# 1152x864, 75.0Hz; hfreq=67.50, vfreq=75.00
	ModeLine "1152x864"	108.00 1152 1216 1344 1600  864  865  868  900
+hsync +vsync
	# 1024x768, 75.0Hz; hfreq=60.02, vfreq=75.03
	ModeLine "1024x768"	 78.75 1024 1040 1136 1312  768  769  772  800
+hsync +vsync
	# 1024x768, 70.0Hz; hfreq=56.48, vfreq=70.07
	ModeLine "1024x768"	 75.00 1024 1048 1184 1328  768  771  777  806
-hsync -vsync
	# 800x600, 75.0Hz; hfreq=46.88, vfreq=75.00
	ModeLine "800x600"	 49.50  800  816  896 1056  600  601  604  625
+hsync +vsync
	# 800x600, 72.0Hz; hfreq=48.08, vfreq=72.19
	ModeLine "800x600"	 50.00  800  856  976 1040  600  637  643  666
+hsync +vsync
	# 800x600, 60.0Hz; hfreq=37.88, vfreq=60.32
	ModeLine "800x600"	 40.00  800  840  968 1056  600  601  605  628
+hsync +vsync
	# 640x480, 75.0Hz; hfreq=37.50, vfreq=75.00
	ModeLine "640x480"	 31.50  640  656  720  840  480  481  484  500
-hsync -vsync
	# 640x480, 72.0Hz; hfreq=37.86, vfreq=72.81
	ModeLine "640x480"	 31.50  640  656  696  816  480  481  484  504
-hsync -vsync
	# 640x480, 60.0Hz; hfreq=31.47, vfreq=59.94
	ModeLine "640x480"	 25.17  640  648  744  784  480  482  484  509
-hsync -vsync
	# Extended modelines with GTF timings
	# 640x480 @ 100.00 Hz (GTF) hsync: 50.90 kHz; pclk: 43.16 MHz
	ModeLine "640x480"  43.16  640 680 744 848  480 481 484 509  -HSync
+Vsync
	# 768x576 @ 60.00 Hz (GTF) hsync: 35.82 kHz; pclk: 34.96 MHz
	ModeLine "768x576"  34.96  768 792 872 976  576 577 580 597  -HSync
+Vsync
	# 768x576 @ 72.00 Hz (GTF) hsync: 43.27 kHz; pclk: 42.93 MHz
	ModeLine "768x576"  42.93  768 800 880 992  576 577 580 601  -HSync
+Vsync
	# 768x576 @ 75.00 Hz (GTF) hsync: 45.15 kHz; pclk: 45.51 MHz
	ModeLine "768x576"  45.51  768 808 888 1008  576 577 580 602  -HSync
+Vsync
	# 768x576 @ 85.00 Hz (GTF) hsync: 51.42 kHz; pclk: 51.84 MHz
	ModeLine "768x576"  51.84  768 808 888 1008  576 577 580 605  -HSync
+Vsync
	# 768x576 @ 100.00 Hz (GTF) hsync: 61.10 kHz; pclk: 62.57 MHz
	ModeLine "768x576"  62.57  768 816 896 1024  576 577 580 611  -HSync
+Vsync
	# 800x600 @ 100.00 Hz (GTF) hsync: 63.60 kHz; pclk: 68.18 MHz
	ModeLine "800x600"  68.18  800 848 936 1072  600 601 604 636  -HSync
+Vsync
	# 1024x768 @ 100.00 Hz (GTF) hsync: 81.40 kHz; pclk: 113.31 MHz
	ModeLine "1024x768"  113.31  1024 1096 1208 1392  768 769 772 814 
-HSync +Vsync
	# 1152x864 @ 60.00 Hz (GTF) hsync: 53.70 kHz; pclk: 81.62 MHz
	ModeLine "1152x864"  81.62  1152 1216 1336 1520  864 865 868 895 
-HSync +Vsync
	# 1152x864 @ 85.00 Hz (GTF) hsync: 77.10 kHz; pclk: 119.65 MHz
	ModeLine "1152x864"  119.65  1152 1224 1352 1552  864 865 868 907 
-HSync +Vsync
	# 1152x864 @ 100.00 Hz (GTF) hsync: 91.50 kHz; pclk: 143.47 MHz
	ModeLine "1152x864"  143.47  1152 1232 1360 1568  864 865 868 915 
-HSync +Vsync
	# 1280x960 @ 72.00 Hz (GTF) hsync: 72.07 kHz; pclk: 124.54 MHz
	ModeLine "1280x960"  124.54  1280 1368 1504 1728  960 961 964 1001 
-HSync +Vsync
	# 1280x960 @ 75.00 Hz (GTF) hsync: 75.15 kHz; pclk: 129.86 MHz
	ModeLine "1280x960"  129.86  1280 1368 1504 1728  960 961 964 1002 
-HSync +Vsync
	# 1280x960 @ 100.00 Hz (GTF) hsync: 101.70 kHz; pclk: 178.99 MHz
	ModeLine "1280x960"  178.99  1280 1376 1520 1760  960 961 964 1017 
-HSync +Vsync
	# 1280x1024 @ 100.00 Hz (GTF) hsync: 108.50 kHz; pclk: 190.96 MHz
	ModeLine "1280x1024"  190.96  1280 1376 1520 1760  1024 1025 1028
1085  -HSync +Vsync
	# 1400x1050 @ 60.00 Hz (GTF) hsync: 65.22 kHz; pclk: 122.61 MHz
	ModeLine "1400x1050"  122.61  1400 1488 1640 1880  1050 1051 1054
1087  -HSync +Vsync
	# 1400x1050 @ 72.00 Hz (GTF) hsync: 78.77 kHz; pclk: 149.34 MHz
	ModeLine "1400x1050"  149.34  1400 1496 1648 1896  1050 1051 1054
1094  -HSync +Vsync
	# 1400x1050 @ 75.00 Hz (GTF) hsync: 82.20 kHz; pclk: 155.85 MHz
	ModeLine "1400x1050"  155.85  1400 1496 1648 1896  1050 1051 1054
1096  -HSync +Vsync
	# 1400x1050 @ 85.00 Hz (GTF) hsync: 93.76 kHz; pclk: 179.26 MHz
	ModeLine "1400x1050"  179.26  1400 1504 1656 1912  1050 1051 1054
1103  -HSync +Vsync
	# 1400x1050 @ 100.00 Hz (GTF) hsync: 111.20 kHz; pclk: 214.39 MHz
	ModeLine "1400x1050"  214.39  1400 1512 1664 1928  1050 1051 1054
1112  -HSync +Vsync
	# 1600x1200 @ 100.00 Hz (GTF) hsync: 127.10 kHz; pclk: 280.64 MHz
	ModeLine "1600x1200"  280.64  1600 1728 1904 2208  1200 1201 1204
1271  -HSync +Vsync
	# 1680x1050 (Notebook)
	ModeLine "1680x1050" 154.2 1680 1712 2296 2328   1050 1071 1081 1103
	# 1920x1200 @ 60.00 Hz (GTF)  hsync: 74.52; pclk: 193.16 MHz
	ModeLine "1920x1200" 193.16  1920 2048 2256 2592  1200 1201 1204 1242
-HSync +HSync
EndSection

# This two lines are (presumably) needed to prevent fonts from being scrambled
        Option  "XaaNoScanlineImageWriteRect" "true"
        Option  "XaaNoScanlineCPUToScreenColorExpandFill"
"true"
EndSection

Section "Device"
	Driver      "vesa"
	VendorName  "All"
	BoardName   "All"
#	BusID       "PCI:1:0:0"


Section "DRI"
	Mode 0666
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Card0"
	Monitor    "Monitor0"
	DefaultColorDepth 16
	Option "AddARGBGLXVisuals" "true"
	Option "DisableGLXRootClipping" "true"
	SubSection "Display"
		Depth     1
		Modes "1280x1024" "1152x864" "1024x768"
"800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth     4
		Modes "1280x1024" "1152x864" "1024x768"
"800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth     8
		Modes "1280x1024" "1152x864" "1024x768"
"800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth     15
		Modes "1280x1024" "1152x864" "1024x768"
"800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth     16
		Modes "1280x1024" "1152x864" "1024x768"
"800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth     24
		Modes "1280x1024" "1152x864" "1024x768"
"800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth     32
		Modes "1280x1024" "1152x864" "1024x768"
"800x600" "640x480"
	EndSubSection
EndSection

x

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