You are not logged in.

#1 2007-03-29 19:23:04

chell
Member
Registered: 2007-03-28
Posts: 3

Does my TFTs refresh rate matter?

Hello everyone!

I've been an Arch Linux user for a few hours now and have got it running quite nicely. I love Arch smile  I've configured my soundcard and installed GNOME. All works fine, however I can't change the refresh rate of my screen which is set to 50 herz.

I've got a Hanns G HW191D which is a TFT screen. So here's my question:

Is 50 herz enough (Someone told me the refresh rate doesn't matter if you have a TFT screen) or should I find a way of increasing it?

Thanks a lot in advance,

chell

Offline

#2 2007-03-29 19:59:35

[vEX]
Member
From: Sweden
Registered: 2006-11-23
Posts: 450

Re: Does my TFTs refresh rate matter?

You really sure it's 50Hz? I've heard TFTs only have two options, either 60Hz or 75Hz, where you would be stuck with 60Hz for DVI but D-Sub (VGA) should be able to switch between both.


PC: Antec P182B | Asus P8Z77-V PRO | Intel i5 3570k | 16GB DDR3 | GeForce 450GTS | 4TB HDD | Pioneer BDR-207D | Asus Xonar DX | Altec Lansing CS21 | Eizo EV2736W-BK | Arch Linux x86_64
HTPC: Antec NSK2480 | ASUS M3A78-EM (AMD 780G) | AMD Athlon X3 425 | 8GB DDR2 | GeForce G210 | 2TB HDD | Arch Linux x86_64
Server: Raspberry Pi (model B) | 512MB RAM | 750GB HDD | Arch Linux ARM

Offline

#3 2007-03-30 04:47:01

chell
Member
Registered: 2007-03-28
Posts: 3

Re: Does my TFTs refresh rate matter?

Yes, I'm sure. So: Does it matter or should I try to increase it?

Offline

#4 2007-03-30 06:27:20

cactus
Taco Eater
From: t͈̫̹ͨa͖͕͎̱͈ͨ͆ć̥̖̝o̫̫̼s͈̭̱̞͍̃!̰
Registered: 2004-05-25
Posts: 4,615
Website

Re: Does my TFTs refresh rate matter?

use whatever the optimal refresh rate is for your lcd.
Mine, for instance, supports 75hz, but claims that 60hz is the optimal refresh rate.


"Be conservative in what you send; be liberal in what you accept." -- Postel's Law
"tacos" -- Cactus' Law
"t̥͍͎̪̪͗a̴̻̩͈͚ͨc̠o̩̙͈ͫͅs͙͎̙͊ ͔͇̫̜t͎̳̀a̜̞̗ͩc̗͍͚o̲̯̿s̖̣̤̙͌ ̖̜̈ț̰̫͓ạ̪͖̳c̲͎͕̰̯̃̈o͉ͅs̪ͪ ̜̻̖̜͕" -- -̖͚̫̙̓-̺̠͇ͤ̃ ̜̪̜ͯZ͔̗̭̞ͪA̝͈̙͖̩L͉̠̺͓G̙̞̦͖O̳̗͍

Offline

#5 2007-03-30 06:37:00

iBertus
Member
From: Greenville, NC
Registered: 2004-11-04
Posts: 2,228

Re: Does my TFTs refresh rate matter?

You'll find that most LCD panels have an optimal refresh rate of 60Hz. Using anything else could mean tearing or display abnormalities in the display.

Offline

#6 2007-03-31 18:11:32

cschep
Member
From: Portland, OR
Registered: 2006-12-02
Posts: 120

Re: Does my TFTs refresh rate matter?

I'm not sure if this is what happened to the OP or not, but I'm having a similar problem.

Well, I'm not sure if it's a problem. See I think people on here are right, most LCDs are optimal at 60hz. I just configured KDE on my arch system and The only two options I have are 50 and 55 hz.

I have the latest (the most current in pacman anyway...) nvidia driver installed for my georce 7800gt and the display is my brand new samsung 204bw.

Anyone know how I can get it to 60? I dunno if it matters, but it sure is bugging me.

Thanks!

Last edited by cschep (2007-03-31 18:12:53)


there once was a man named pac.

Offline

#7 2007-04-01 10:15:02

Captain Spaulding
Member
Registered: 2006-11-16
Posts: 115
Website

Re: Does my TFTs refresh rate matter?

Go to your Xorg configuration file at /etc/X11/ and open it as root. Find the section named Monitor. In there will be two line called HorizSync and VertRefresh. If not, add them and adjust them to sensible values like this:

HorizSync    43.0 - 68.0
VertRefresh  60.0 - 60.0

I don't know what the NVidia proprietary driver does to your xorg.conf, but on any sane X-Window setup this WILL force your monitor to 60Hz.

Offline

#8 2007-04-01 16:23:16

detto
Member
Registered: 2006-01-23
Posts: 510

Re: Does my TFTs refresh rate matter?

I just configured KDE on my arch system and The only two options I have are 50 and 55 hz.

It's an X bug, causing to display wrong Hz in applications (like kcontrol, or gnome's setting dialog). Try to look at your monitor's OSD menu for "display info" or similiar. There u'll find the correct Hz that is used. Mine e.g. is running at 75 Hz, which is also the preferred for it, but configuring it by a GUI always shows 50Hz.

cheers,
deTTo

Offline

#9 2007-04-01 20:19:00

cschep
Member
From: Portland, OR
Registered: 2006-12-02
Posts: 120

Re: Does my TFTs refresh rate matter?

deTTo,

You're totally right, 60hz according to the monitor.

I really appreciate the info, was making me batty!


there once was a man named pac.

Offline

#10 2007-04-02 15:50:01

Zer0
Member
From: Windsor, ON, Canada
Registered: 2006-08-25
Posts: 299

Re: Does my TFTs refresh rate matter?

detto wrote:

I just configured KDE on my arch system and The only two options I have are 50 and 55 hz.

It's an X bug, causing to display wrong Hz in applications (like kcontrol, or gnome's setting dialog). Try to look at your monitor's OSD menu for "display info" or similiar. There u'll find the correct Hz that is used. Mine e.g. is running at 75 Hz, which is also the preferred for it, but configuring it by a GUI always shows 50Hz.

cheers,
deTTo

So true.. I always check my monitor's OSD menu to check the refresh rates (be it CRT or LCD).  Why let the software tell you when the monitor knows for sure wink

Offline

#11 2007-04-04 13:21:54

MAC!EK
Member
Registered: 2005-09-27
Posts: 265

Re: Does my TFTs refresh rate matter?

But how to check the notebooks flat panel refresh rate? I have Lenovo C200 notebook.
When I'm moving a white cursor on a light colored web page I can't see it, on the LCD connected to VGA in the same time I can see the cursor clearly. Maybe the Lenovo's flat panel is not so good?

Offline

Board footer

Powered by FluxBB