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Bague
Apprentice
Joined: 09 Feb 2004
Posts: 292
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 Posted: Wed Aug 17, 2005 7:21 am Post subject: Viewsonic Refresh Rates In Xorg |
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Ok, I have a viewsonic A91f+ monitor, and I am trying to figure out the values for refrsh rates I need to put in the xorg conf. On the site, it says for sync,
Fh: 30~86kHz Fv: 50~180Hz
I don't want to fark up the settings to fry my monitor, and cannot get X to load on the current settings. What should I set HorizSync and VertRefresh to? |
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ikaro
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Joined: 14 Jul 2003
Posts: 2527
Location: Denmark
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| Posted: Wed Aug 17, 2005 12:25 pm Post subject: Re: Viewsonic Refresh Rates In Xorg |
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| Bague wrote: | Ok, I have a viewsonic A91f+ monitor, and I am trying to figure out the values for refrsh rates I need to put in the xorg conf. On the site, it says for sync,
Fh: 30~86kHz Fv: 50~180Hz
I don't want to fark up the settings to fry my monitor, and cannot get X to load on the current settings. What should I set HorizSync and VertRefresh to? |
Horizontal: 30-86
Vertical: 50-180
so in your xorg.conf you add:
| Code: |
HorizSync 30.00-86.00
VertRefresh 50.00-180.00
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inside the "monitor" block.
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John5788
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Joined: 06 Apr 2004
Posts: 2140
Location: 127.0.0.1
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| Posted: Fri Feb 17, 2006 5:03 am Post subject: |
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i have a similar problem. I bought a new Viewsonic A71f+ and the website says it can support up to 90Hz in 1024x768
http://www.viewsonic.com/products/desktopdisplays/crtmonitors/aseries/a71fplus/#specs
I have set the horizsync and vertrefresh rates
| Code: | Section "Monitor"
Identifier "My Monitor"
# HorizSync is in kHz unless units are specified.
# HorizSync may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY. REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.
HorizSync 30-72
# HorizSync 30-64 # multisync
# HorizSync 31.5, 35.2 # multiple fixed sync frequencies
# HorizSync 15-25, 30-50 # multiple ranges of sync frequencies
# VertRefresh is in Hz unless units are specified.
# VertRefresh may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY. REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.
# VertRefresh 55-100
VertRefresh 50-160
EndSection
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but my monitor cant even do 75Hz in 1280x1024:
| Code: | $ xrandr
SZ: Pixels Physical Refresh
*0 1280 x 1024 ( 339mm x 271mm ) *60
1 1024 x 768 ( 339mm x 271mm ) 85 75 70 60 87
2 800 x 600 ( 339mm x 271mm ) 85 75 72 60 56
3 640 x 480 ( 339mm x 271mm ) 85 75 73 60
4 1280 x 960 ( 339mm x 271mm ) 60
5 1152 x 864 ( 339mm x 271mm ) 75
6 832 x 624 ( 339mm x 271mm ) 75
7 700 x 525 ( 339mm x 271mm ) 60
8 640 x 512 ( 339mm x 271mm ) 60
9 720 x 400 ( 339mm x 271mm ) 85
10 640 x 400 ( 339mm x 271mm ) 85
11 576 x 432 ( 339mm x 271mm ) 75
12 640 x 350 ( 339mm x 271mm ) 85
13 512 x 384 ( 339mm x 271mm ) 85 75 70 60 87
14 416 x 312 ( 339mm x 271mm ) 75
15 400 x 300 ( 339mm x 271mm ) 85 75 72 60 56
16 320 x 240 ( 339mm x 271mm ) 85 75 73 60
17 320 x 200 ( 339mm x 271mm ) 85
18 320 x 175 ( 339mm x 271mm ) 85
Current rotation - normal
Current reflection - none
Rotations possible - normal
Reflections possible - none |
why is this happening? My old monitor, 11 years old could do 1280x1024 @ 75hz
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John5788 |
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PaulBredbury
Watchman
Joined: 14 Jul 2005
Posts: 7310
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| Posted: Fri Feb 17, 2006 5:24 am Post subject: |
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| Try not specifying the config, to let xorg figure it out itself. |
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John5788
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Joined: 06 Apr 2004
Posts: 2140
Location: 127.0.0.1
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| Posted: Fri Feb 17, 2006 5:37 am Post subject: |
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ok, I commented out the lines and I still get 60hz.
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John5788 |
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bertaboy
l33t
Joined: 05 Nov 2004
Posts: 604
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| Posted: Sun Feb 19, 2006 2:15 am Post subject: |
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| John5788 wrote: | | ok, I commented out the lines and I still get 60hz. |
I would try to find what the manufacturer says is the optimum settings. I know for my Samsung 730B that it's recommended settings are at 1280x1024@60, even though it supports @75 |
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