Refresh and resolution etc

Hi,

I’ve just installed 6.1.0 on an extended partition on my machine, and after
adding a line to /etc/system/enum/devices/graphics to trap my integrated
graphics card I get the correct driver installed and hence Photon now zips
along. Unfortunately, I can’t seem to get resolutions greater than 800x600
to work on my monitor (I have the same problem under Win2k), under Linux I
can coax X to play nicely by turning off Bios mode checking, and thus I can
just specify what display I want. Is there anyway to this on QNX? Or am I
limited to a lores-ish screen until I get a new monitor?

The graphics card is an ProSavage 4 (VIA chipset) and the monitor is a
Microvitec 1438.

thanks for any help,

cheers,

d.

Hi,

Can you run the grafxscript found at:

http://www.geocities.com/erickmuis/files/hardware_scripts/nto

and send us the generated tar file.

Regards,

Joe

Dominic Morris <dom@subdimension.com> wrote:

Hi,

I’ve just installed 6.1.0 on an extended partition on my machine, and after
adding a line to /etc/system/enum/devices/graphics to trap my integrated
graphics card I get the correct driver installed and hence Photon now zips
along. Unfortunately, I can’t seem to get resolutions greater than 800x600
to work on my monitor (I have the same problem under Win2k), under Linux I
can coax X to play nicely by turning off Bios mode checking, and thus I can
just specify what display I want. Is there anyway to this on QNX? Or am I
limited to a lores-ish screen until I get a new monitor?

The graphics card is an ProSavage 4 (VIA chipset) and the monitor is a
Microvitec 1438.

thanks for any help,

cheers,

d.

Hi Dominic,

Could you please elaborate on what you mean by
‘BIOS mode checking’.

The Savage driver has a direct modeswitcher and therefore
the refresh rate can be changed. There is two
ways to do this:

  1. Withing Photon, using phgrafx, select the resolution
    and color depth you want. Then click on the ‘Advanced’
    tab. At the end of the line add a -RXX where XX is
    the refresh rate in Hz.

  2. In text mode, edit /etc/system/config/graphics-modes.
    Copy the line with the desired resolution and color
    depth to the top of the file then add a -RXX (where
    XX is the refresh rate in HZ) before the ;

Unfortunately if you can’t come up with a combination
of refresh rate and resolution that you desire, you
may need to get a new monitor.

Erick.





Hardware Support Account <hw@qnx.com> wrote:

Hi,

Can you run the grafxscript found at:

http://www.geocities.com/erickmuis/files/hardware_scripts/nto

and send us the generated tar file.

Regards,

Joe

Dominic Morris <> dom@subdimension.com> > wrote:
Hi,

I’ve just installed 6.1.0 on an extended partition on my machine, and after
adding a line to /etc/system/enum/devices/graphics to trap my integrated
graphics card I get the correct driver installed and hence Photon now zips
along. Unfortunately, I can’t seem to get resolutions greater than 800x600
to work on my monitor (I have the same problem under Win2k), under Linux I
can coax X to play nicely by turning off Bios mode checking, and thus I can
just specify what display I want. Is there anyway to this on QNX? Or am I
limited to a lores-ish screen until I get a new monitor?

The graphics card is an ProSavage 4 (VIA chipset) and the monitor is a
Microvitec 1438.

thanks for any help,

cheers,

d.

Hi Erick,

Could you please elaborate on what you mean by
‘BIOS mode checking’.

I’m not quite sure what it means myself(!), the driver I use for X11R6
comes from http://www.probo.com/timr/savage40.html and the notes for
the option that I use are:

“Enables or disables the use of the video BIOS to switch modes. Using
the BIOS lets me do a better job of supporting all the various LCD
panels in the world, but some purists are opposed to it. Default is “on”.”

Turning this option off makes things play along nicely.

  1. Withing Photon, using phgrafx, select the resolution
    and color depth you want. Then click on the ‘Advanced’
    tab. At the end of the line add a -RXX where XX is
    the refresh rate in Hz.

Yup, that was one of the first few things I tried, unfortunately I end
up with multiple images on the screen - i.e. two horizontally tiled
screen images - the quality of each of the individual screen images
varies depending on the refresh rate.

Unfortunately if you can’t come up with a combination
of refresh rate and resolution that you desire, you
may need to get a new monitor.

I was dreading that! Unfortunately at present, I live in a very small
flat and my desk is just about big enough to fit mouse mat, keyboard and
a 14" monitor on it - the monitor is shared between my PC and my half-dead
A1200 which is why I have the Microvitec in the first place. Perhaps
when I move next year they’ll be room for something slightly larger and
more modern!

thanks,

d.