Changing Screen Refresh rate on an Ultra 10

Changing Screen Refresh rate on an Ultra 10

Post by Mike Diggin » Thu, 07 Jun 2001 06:25:11



I have a Sun Ultra 10 that I need to change (lower) the refresh rate on if
that's even possible. I'm finding my KVM switch won't always sync
correctly to my monitor when the Ultra 10 is powered up. Tech support
sugested lowering the refresh rate. Is this possible and can it be
maintained after a reboot?

-Mike

 
 
 

Changing Screen Refresh rate on an Ultra 10

Post by JJM » Thu, 07 Jun 2001 09:42:31


I think you might want to look at the m64config utility. It depends on what
graphics card you have but that might be a good place to start. The settings
are retained after reboot because they update the graphics card directly.

JJ


Quote:

> I have a Sun Ultra 10 that I need to change (lower) the refresh rate on if
> that's even possible. I'm finding my KVM switch won't always sync
> correctly to my monitor when the Ultra 10 is powered up. Tech support
> sugested lowering the refresh rate. Is this possible and can it be
> maintained after a reboot?

> -Mike


 
 
 

Changing Screen Refresh rate on an Ultra 10

Post by Mike Diggin » Thu, 07 Jun 2001 10:31:07


That looks promising. Thanks!

-Mike


> I think you might want to look at the m64config utility. It depends on what
> graphics card you have but that might be a good place to start. The settings
> are retained after reboot because they update the graphics card directly.

> JJ



> > I have a Sun Ultra 10 that I need to change (lower) the refresh rate on if
> > that's even possible. I'm finding my KVM switch won't always sync
> > correctly to my monitor when the Ultra 10 is powered up. Tech support
> > sugested lowering the refresh rate. Is this possible and can it be
> > maintained after a reboot?

> > -Mike

 
 
 

Changing Screen Refresh rate on an Ultra 10

Post by Ramiro dos Santo » Fri, 08 Jun 2001 07:45:51


In article


> I have a Sun Ultra 10 that I need to change (lower) the refresh rate on
> if that's even possible. I'm finding my KVM switch won't always sync
> correctly to my monitor when the Ultra 10 is powered up. Tech support
> sugested lowering the refresh rate. Is this possible and can it be
> maintained after a reboot?

> -Mike

Try this:
        prtconfig -F

        or...

this show you what kind of framebuffer you use (it's not everytime
m64config)

if you get the first version, try ffbconfig -help
if you get the second one, try m64config -help (or the man page)

Cheers

 
 
 

Changing Screen Refresh rate on an Ultra 10

Post by Mike Diggin » Fri, 08 Jun 2001 10:28:46


It looks like I am using the m64 and the M64config utility does seem to
change the resolution and refresh rate. However, after a reboot it goes
back to the default which is 1152x900x66. I'd like to force it to
something lower and have it remain that way after a reboot. Any ideas?

I don't use a Window system.

-Mike


> In article


> > I have a Sun Ultra 10 that I need to change (lower) the refresh rate on
> > if that's even possible. I'm finding my KVM switch won't always sync
> > correctly to my monitor when the Ultra 10 is powered up. Tech support
> > sugested lowering the refresh rate. Is this possible and can it be
> > maintained after a reboot?

> > -Mike

> Try this:
>    prtconfig -F

>    or...

> this show you what kind of framebuffer you use (it's not everytime
> m64config)

> if you get the first version, try ffbconfig -help
> if you get the second one, try m64config -help (or the man page)

> Cheers

 
 
 

Changing Screen Refresh rate on an Ultra 10

Post by Ramiro dos Santo » Sat, 09 Jun 2001 07:34:40


In article


> It looks like I am using the m64 and the M64config utility does seem to
> change the resolution and refresh rate. However, after a reboot it goes
> back to the default which is 1152x900x66. I'd like to force it to
> something lower and have it remain that way after a reboot. Any ideas?

> I don't use a Window system.

> -Mike


>> In article


>> > I have a Sun Ultra 10 that I need to change (lower) the refresh rate
>> > on if that's even possible. I'm finding my KVM switch won't always
>> > sync correctly to my monitor when the Ultra 10 is powered up. Tech
>> > support sugested lowering the refresh rate. Is this possible and can
>> > it be maintained after a reboot?

>> > -Mike

>> Try this:
>>        prtconfig -F

>>        or...

>> this show you what kind of framebuffer you use (it's not everytime
>> m64config)

>> if you get the first version, try ffbconfig -help if you get the second
>> one, try m64config -help (or the man page)

>> Cheers

OK, try this:
on a terminal after the Solaris box is up and running, type
        eeprom output-device=screen:r1152x900x66

if the system is not on a multiuser mode, type on the OBP

        setenv output-device=screen:r1152x900x66

thats all

Cheers!

Ramiro Santos

 
 
 

Changing Screen Refresh rate on an Ultra 10

Post by Mike Diggin » Sun, 10 Jun 2001 09:46:53



> OK, try this:
> on a terminal after the Solaris box is up and running, type
>    eeprom output-device=screen:r1152x900x66

> if the system is not on a multiuser mode, type on the OBP

>    setenv output-device=screen:r1152x900x66

> thats all

That's better. I had to experiment a bit because it wouldn't retain every
option that m64config listed as supported resolutions and refresh rates.
However, I did find a few that would work!

Thanks for your help,

-Mike

 
 
 

1. How to change video refresh rate on Ultra 60?

Greetings!

Does anyone know how to change the refresh rate on an Ultra 60?
Currently, my monitor (model GDM 90W10)says it is set at 87.1kHz/ 70Hz.
Our environment is not the best in the world and we have a plethora of
EMF from power which causes horrible monitor flicker and makes the
monitor almost unusable.


Thanks!
Ron

--
________________________________________________________________

Ronald
Plumley

Board of Regents of The University System of Ga       (770) 423-6860
Office of Information and Instructional Technology      (770) 423-6868
(fax)
Department of Telecommunications and Networking

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