Problem with screen resolution.

[Eric]

I am having trouble with my console command line login on one of our
Sun Fire boxes. We are running Solaris 9. When I select "Command
Line Login" from the "Options" drop down box on this machine or if I
stop dtlogin the monitor gives me an "Invalid PC Mode" error. The
other Sun Fire box is connected to the same monitor, through a Avocent
AutoView 424 switch box. I have no trouble going to the command line
login on that machine. I have tried different ports on the switch
box. I have tried a direct cable from the computer to the display.
The monitor we are using is a DELL flat panel. I can get to the
command line login if I connect our old Sun CRT monitor but this is
not an option for normal operations. It appears that the machine I am
having trouble with is programmed for an resolution and/or refresh
rate that the monitor can not handle. Is the command line resolution
setting different from the setting used for the graphical login? If
so, how do I find out what the setting is and change it?
Thanks in advance.
-Eric

[Tony Fuller]

Eric wrote:

> I am having trouble with my console command line login on one of our
> Sun Fire boxes. We are running Solaris 9. When I select "Command
> Line Login" from the "Options" drop down box on this machine or if I
> stop dtlogin the monitor gives me an "Invalid PC Mode" error. The
> other Sun Fire box is connected to the same monitor, through a Avocent
> AutoView 424 switch box. I have no trouble going to the command line
> login on that machine. I have tried different ports on the switch
> box. I have tried a direct cable from the computer to the display.
> The monitor we are using is a DELL flat panel. I can get to the
> command line login if I connect our old Sun CRT monitor but this is
> not an option for normal operations. It appears that the machine I am
> having trouble with is programmed for an resolution and/or refresh
> rate that the monitor can not handle. Is the command line resolution
> setting different from the setting used for the graphical login? If
> so, how do I find out what the setting is and change it?
> Thanks in advance.
> -Eric

Eric,
The "usual" screen resoulution for a Sun is 1152x900 which is not
supported by many flat panel screens!! The soultion is to set the default
resolution at the OBP level (also referred to as EEPROM or monitor level)
set the output device setting with:
ok setenv output-device screen:r1024x768x75
ok reset

Take a look at:
[url]http://www.techsource.com/celebrity_man.pdf[/url]

Tony Fuller.

[Eric]

Tony,
Thanks. That worked like a champ.
-Eric

Tony Fuller <tony@tonyfuller.clara.co.uk> wrote in message news:<3F0094F4.3DAFDDC5@tonyfuller.clara.co.uk>...

> Eric wrote:
>

> > I am having trouble with my console command line login on one of our
> > Sun Fire boxes. We are running Solaris 9. When I select "Command
> > Line Login" from the "Options" drop down box on this machine or if I
> > stop dtlogin the monitor gives me an "Invalid PC Mode" error. The
> > other Sun Fire box is connected to the same monitor, through a Avocent
> > AutoView 424 switch box. I have no trouble going to the command line
> > login on that machine. I have tried different ports on the switch
> > box. I have tried a direct cable from the computer to the display.
> > The monitor we are using is a DELL flat panel. I can get to the
> > command line login if I connect our old Sun CRT monitor but this is
> > not an option for normal operations. It appears that the machine I am
> > having trouble with is programmed for an resolution and/or refresh
> > rate that the monitor can not handle. Is the command line resolution
> > setting different from the setting used for the graphical login? If
> > so, how do I find out what the setting is and change it?
> > Thanks in advance.
> > -Eric

>
> Eric,
> The "usual" screen resoulution for a Sun is 1152x900 which is not
> supported by many flat panel screens!! The soultion is to set the default
> resolution at the OBP level (also referred to as EEPROM or monitor level)
> set the output device setting with:
> ok setenv output-device screen:r1024x768x75
> ok reset
>
> Take a look at:
> [url]http://www.techsource.com/celebrity_man.pdf[/url]
>
> Tony Fuller.
>
> --