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Old 03-31-2009, 11:24 AM   #1
anotherpenguin
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Change refresh rate on fedora


How do I change my screen refresh rate on my fedora7?
 
Old 03-31-2009, 11:27 AM   #2
amani
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From GUI

Administration or system --> Display in KDE

fedora7 is too old ...move to Fedora10
 
Old 04-02-2009, 04:47 PM   #3
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I tried that but I can't get the refresh rate to go lower.
how do I change horizontal and vertical refresh?
 
Old 04-02-2009, 04:51 PM   #4
lazlow
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Why would you want to lower the refresh rate?
 
Old 04-02-2009, 05:13 PM   #5
anotherpenguin
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I'm using an old monitor and if the rate is too high left edge of my screen gets cut off, only solution is to lower the rate a little.
 
Old 04-02-2009, 05:25 PM   #6
lazlow
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That should not be your refresh rate. It should be your resolution. Video cards also only have a fixed window of refresh rates that they can operate in.
 
Old 04-02-2009, 05:51 PM   #7
anotherpenguin
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Fixed it!
I just added

HorizSync 31.5 -50.0
VertRefresh 40-90

to /etc/X11/xorg.conf
yeah you are right I could also lower my resolution
or keep it the same and lower the refresh rate.

Last edited by anotherpenguin; 04-02-2009 at 05:53 PM.
 
Old 04-02-2009, 05:55 PM   #8
lazlow
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Be aware that operating a monitor outside its normal refresh rates will damage the monitor.
 
Old 04-02-2009, 06:07 PM   #9
anotherpenguin
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Quote:
Originally Posted by lazlow View Post
Be aware that operating a monitor outside its normal refresh rates will damage the monitor.
ok ( I didn't know that ) thanks for the tip, I will check if I'm still in correct range.
 
Old 04-02-2009, 06:54 PM   #10
amani
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Post output of

#lspci

and your /etc/X11/xorg.conf

Usually hsync and vsync are auto detected (you will find them in the manual/monitor website too). If they are not, use modelines as well
 
Old 04-02-2009, 07:02 PM   #11
anotherpenguin
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Here you go.

# lspci
00:00.0 Host bridge: Intel Corporation 82865G/PE/P DRAM Controller/Host-Hub Interface (rev 02)
00:02.0 VGA compatible controller: Intel Corporation 82865G Integrated Graphics Controller (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c2)
00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801EB (ICH5) SATA Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801EB/ER (ICH5/ICH5R) SMBus Controller (rev 02)
00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
01:05.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
 
Old 04-03-2009, 12:37 PM   #12
amani
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check if i810 is in your driver.

see lsmod

or /etc/X11/xorg.conf
 
  


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