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11-29-2007, 03:34 PM
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#1
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LQ Newbie
Registered: Nov 2007
Location: Sweden
Distribution: Linux mint
Posts: 9
Rep:
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Higher refresh rate!
Hi!
My monitor is an BenQ T221WA and I would like to use higher refresh rate in 1680x1050 in 75Mhz.
This is a part of my xorg.conf
Code:
Section "Screen"
Identifier "Default Screen"
Device "nVidia Corporation NV36 [GeForce FX 5700LE]"
Monitor "CPD-E500E"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "1600x1200" "1280x1024" "1280x960" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 4
Modes "1600x1200" "1280x1024" "1280x960" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "1600x1200" "1280x1024" "1280x960" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 15
Modes "1600x1200" "1280x1024" "1280x960" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "1600x1200" "1280x1024" "1280x960" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 24
Modes "1680x1050" "1600x1200" "1280x1024" "1280x960" "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
EndSection
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11-29-2007, 03:41 PM
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#2
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Senior Member
Registered: Oct 2003
Location: Northeastern Michigan, where Carhartt is a Designer Label
Distribution: Slackware 32- & 64-bit Stable
Posts: 3,541
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In the Monitor section of xorg.conf, put entries like this:
Code:
Section "Monitor"
...
HorizSync 30.0 - 85.0
VertRefresh 50.0 - 160.0
Option "DPMS"
...
EndSection
Do not use these values: check your monitor manual for the correct range!
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11-30-2007, 06:46 AM
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#3
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LQ Newbie
Registered: Nov 2007
Location: Sweden
Distribution: Linux mint
Posts: 9
Original Poster
Rep:
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Quote:
Originally Posted by tronayne
In the Monitor section of xorg.conf, put entries like this:
Code:
Section "Monitor"
...
HorizSync 30.0 - 85.0
VertRefresh 50.0 - 160.0
Option "DPMS"
...
EndSection
Do not use these values: check your monitor manual for the correct range!
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Thanks for your kvick answer, but it didn't solve my problem.
It looks like it always use 60Mhz when I run in 1860x1050 resolution.
I have been reading a little about modeline and tried to add this line.
Code:
Modeline "1680x1050" 207.14 1680 1784 2032 2512 1050 1050 1053 1099
from here...
http://www.bohne-lang.de/spec/linux/modeline/
Code:
Horizontal Resolution: 1680
Vertical Resolution: 1050
Vertical Refresh Rate: 75.00 Hz
Horizontal Refresh Rate: 82.46 KHz
Dot Clock Frequence: 207.14 MHz
# V-freq: 75.00 Hz // h-freq: 82.46 KHz
Modeline "1680x1050" 207.14 1680 1784 2032 2512 1050 1050 1053 1099
I have been looking at others xorg.conf and they are using Modeline like this...
Code:
ModeLine "1400x1050_75" 155.85 1400 1496 1648 1896 1050 1051 1054 1096 -HSync +Vsync
# modeline generated by gtf(1) [handled by XFdrake]
ModeLine "1400x1050_60" 122.61 1400 1488 1640 1880 1050 1051 1054 1087 -HSync +Vsync
# modeline generated by gtf(1) [handled by XFdrake]
ModeLine "1400x1050_50" 99.88 1400 1480 1624 1848 1050 1051 1054 1081 -HSync +Vsync
Please anyone help me...
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11-30-2007, 07:01 AM
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#4
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LQ Veteran
Registered: Nov 2005
Location: Annapolis, MD
Distribution: Mint
Posts: 17,809
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Here's what gtf gives me:
Code:
[mherring@localhost ~]$ gtf 1680 1050 75
# 1680x1050 @ 75.00 Hz (GTF) hsync: 82.20 kHz; pclk: 188.07 MHz
Modeline "1680x1050_75.00" 188.07 1680 1800 1984 2288 1050 1051 1054 1096 -HSync +Vsync
One article I found suggests removing the .00 from the mode name---like so:
"1680x1050_75"
If you put the mode name into the "Display" section of xorg.conf, it should work.
If you use a modeline in the "Monitor" section, then you don't need to specify refresh rates.
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11-30-2007, 10:36 AM
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#5
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LQ Newbie
Registered: Nov 2007
Location: Sweden
Distribution: Linux mint
Posts: 9
Original Poster
Rep:
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Quote:
Originally Posted by pixellany
Here's what gtf gives me:
Code:
[mherring@localhost ~]$ gtf 1680 1050 75
# 1680x1050 @ 75.00 Hz (GTF) hsync: 82.20 kHz; pclk: 188.07 MHz
Modeline "1680x1050_75.00" 188.07 1680 1800 1984 2288 1050 1051 1054 1096 -HSync +Vsync
One article I found suggests removing the .00 from the mode name---like so:
"1680x1050_75"
If you put the mode name into the "Display" section of xorg.conf, it should work.
If you use a modeline in the "Monitor" section, then you don't need to specify refresh rates.
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Apparently BenQ T221WA don't take higher then 60Mhz in 1680x1050 resolution. I just read that in the manual.
All I want to do is to run in highest resolution in 75Mhz
This is how my xorg.conf looks like now after that I used this cmd "dpkg-reconfigure -phigh xserver-xorg"
I added HorizSync and VertRefresh.
Code:
Section "Device"
Identifier "nVidia Corporation NV36 [GeForce FX 5700LE]"
Driver "nv"
BusID "PCI:1:0:0"
EndSection
Section "Monitor"
Identifier "BenQ T221WA"
HorizSync 30.0 - 82.0
VertRefresh 56.0 - 76.0
Option "DPMS"
EndSection
Section "Screen"
Identifier "Default Screen"
Device "nVidia Corporation NV36 [GeForce FX 5700LE]"
Monitor "BenQ T221WA"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "1680x1050" "1600x1600" "1440x1440" "1280x1024" "1280x960" "1024x768" "832x624" "800x600" "720x400" "640x480" EndSubSection
SubSection "Display"
Depth 4
Modes "1680x1050" "1600x1600" "1440x1440" "1280x1024" "1280x960" "1024x768" "832x624" "800x600" "720x400" "640x480" EndSubSection
SubSection "Display"
Depth 8
Modes "1680x1050" "1600x1600" "1440x1440" "1280x1024" "1280x960" "1024x768" "832x624" "800x600" "720x400" "640x480"
EndSubSection
SubSection "Display"
Depth 15
Modes "1680x1050" "1600x1600" "1440x1440" "1280x1024" "1280x960" "1024x768" "832x624" "800x600" "720x400" "640x480" EndSubSection
SubSection "Display"
Depth 16
Modes "1680x1050" "1600x1600" "1440x1440" "1280x1024" "1280x960" "1024x768" "832x624" "800x600" "720x400" "640x480" EndSubSection
SubSection "Display"
Depth 24
Modes "1680x1050" "1600x1600" "1440x1440" "1280x1024" "1280x960" "1024x768" "832x624" "800x600" "720x400" "640x480" EndSubSection
EndSection
thanks again...
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11-30-2007, 11:07 AM
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#6
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Senior Member
Registered: Oct 2003
Location: Northeastern Michigan, where Carhartt is a Designer Label
Distribution: Slackware 32- & 64-bit Stable
Posts: 3,541
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Have you tried using the xorgsetup utility? It probes your video hardware and mouse and writes a configuration file (xorg.conf) for you (it also makes a back up of any existing xorg.conf file).
Usually, xorgsetup will give you the highest resolution your hardware is capable of by default (without doing the "modes" in the Screen section.
Worth a try, maybe?
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11-30-2007, 12:31 PM
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#7
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Member
Registered: Oct 2004
Distribution: Fedora, Debian, Free BSD
Posts: 71
Rep:
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Quote:
Originally Posted by tronayne
Have you tried using the xorgsetup utility? It probes your video hardware and mouse and writes a configuration file (xorg.conf) for you (it also makes a back up of any existing xorg.conf file).
Usually, xorgsetup will give you the highest resolution your hardware is capable of by default (without doing the "modes" in the Screen section.
Worth a try, maybe?
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is xorgsetup availabe in all distros ?
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11-30-2007, 12:40 PM
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#8
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Senior Member
Registered: Oct 2003
Location: Northeastern Michigan, where Carhartt is a Designer Label
Distribution: Slackware 32- & 64-bit Stable
Posts: 3,541
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Dunno -- should be (it's in /usr/bin on mine) and it has to be run by root.
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11-30-2007, 12:45 PM
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#9
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LQ Newbie
Registered: Nov 2007
Location: Sweden
Distribution: Linux mint
Posts: 9
Original Poster
Rep:
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Quote:
Originally Posted by tronayne
Have you tried using the xorgsetup utility? It probes your video hardware and mouse and writes a configuration file (xorg.conf) for you (it also makes a back up of any existing xorg.conf file).
Usually, xorgsetup will give you the highest resolution your hardware is capable of by default (without doing the "modes" in the Screen section.
Worth a try, maybe?
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Thanks mate, I just read that xorgsetup is only for Slackware.
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11-30-2007, 01:05 PM
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#10
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Member
Registered: Oct 2004
Distribution: Fedora, Debian, Free BSD
Posts: 71
Rep:
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If you are using debian/ubuntu this might help to reconfigure your X
dpkg-reconfigure xserver-xfree86
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11-30-2007, 01:24 PM
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#11
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LQ Veteran
Registered: Nov 2005
Location: Annapolis, MD
Distribution: Mint
Posts: 17,809
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there's also "xorgconfig"---but that won't help if the manual says the monitor won't do 75Hz at that res.
Once again--why would you need to run an LCD faster than 60?
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11-30-2007, 01:29 PM
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#12
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LQ Guru
Registered: Oct 2005
Location: $RANDOM
Distribution: slackware64
Posts: 12,928
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Quote:
Originally Posted by Rick@rd
Thanks mate, I just read that xorgsetup is only for Slackware.
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'xorgsetup' is only for Slackware, instead try 'xorgcfg', it does an equivalently good job. However, if the manual states that 60 Hz is max at that resolution, it may not be a good idea to force the monitor to do more than that.
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11-30-2007, 02:04 PM
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#13
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LQ Newbie
Registered: Nov 2007
Location: Sweden
Distribution: Linux mint
Posts: 9
Original Poster
Rep:
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Thanks everyone!
I am using 1440x900 @ 75Mhz and it works like a charm. This is how my xorg.conf looks like now.
I guess I don't need HorizSync and VertRefresh.
Code:
Section "Monitor"
Identifier "BenQ-T221WA"
HorizSync 30.0-82.0
VertRefresh 56.0-76.0
# 1440x900 @ 75.00 Hz (GTF) hsync: 70.50 kHz; pclk: 136.49 MHz
Modeline "1440x900_75.00" 136.49 1440 1536 1688 1936 900 901 904 940 -HSync +Vsync
# 1440x900 @ 60.00 Hz (GTF) hsync: 55.92 kHz; pclk: 106.47 MHz
Modeline "1440x900_60.00" 106.47 1440 1520 1672 1904 900 901 904 932 -HSync +Vsync
Option "DPMS"
EndSection
Section "Screen"
Identifier "Default Screen"
Device "nVidia Corporation NV36 [GeForce FX 5700LE]"
Monitor "BenQ-T221WA"
DefaultDepth 24
SubSection "Display"
Depth 16
Modes "1440x900"
EndSubSection
SubSection "Display"
Depth 24
Modes "1440x900"
EndSubSection
EndSection
A great tool to generate modeline: http://www.sh.nu/nvidia/gtf.php
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