Community/Discussion/QNX4 Community Support (EOL)/Problem with Pg.lx800 driver/List of Posts
 
Forum Topic - Problem with Pg.lx800 driver: (4 Items)
   
Update
Jacek Rudnicki
06/23/2008 8:42 AM
post9511
Problem with Pg.lx800 driver   
Hi,

We have PC/104 board based on LX800 CPU. This module can work either with standard CRT and dedicated TFT LCD display.

When we set in BIOS as active display CRT only then everything is ok
and displayed picture under Photon looks fine.

But, when we change active display to CRT and Flat panel (640x480 mode) or to Flat panel only then screen is cut at the 
bottom of picture. In result some of manager icons are not visible. It's hard to say how many pixels are taken. 
Displayed sceen takes whole 640x480 area.

Under Windows we do not have any problems with Flat panel.

Is it a known issue ?
How to solve this problem ?

Regards,
Jacek
Jacek Rudnicki
06/27/2008 8:34 AM
post9769
Re: Problem with Pg.lx800 driver   
Hi,

Attached file includes several pictures which shows strange Pg.lx800 & Photon behaviour.

Here is description of these pictures:

   o4.jpg   -  Photon running 640x480 mode on the CRT display. Output
                  display is set in BIOS to CRT only. 
                  As we see both polarizations are positive.

   o5.jpg  -  Output display set to Panel and CRT, 640x480 mode.

   o7.jpg  -  Photon running 640x480 mode on the CRT display.
  
   o8.jpg  -  Photon running 640x480 mode on the TFT LCD display.

                 As we see both displays are shifted.

   o9.jpg  -  CRT display is showing negative polarizations.

  o10.jpg -  Output display set to Panel and CRT, 800x600 mode.

  o11.jpg -  Photon running 800x600 mode on the CRT display.

  o12.jpg -  CRT display is showing negative polarizations.
         
                Screen is shifted more than in 640x480 mode. 

  o13.jpg -  Output display set to Panel and CRT, 1024x768 mode.

  o14.jpg -  Photon running 1024x768 mode on the CRT display.

  o15.jpg -  CRT display is showing negative polarizations.
         
                Screen is shifted more than in 800x600 mode. 
  
  o16.jpg - Output display set to CRT.

  o17.jpg - Photon running 1024x768 mode on the CRT display.

Looks like the Pg.lx800 is not able to handle "Panel" and "Panel & CRT" display mode. Probably driver was tested with 
standard CRT display only.

How can we solve this problem ? Our application will be running on the dedicated TFT LCD display...

P.S. Sorry for a bad quality of pictures.

Regards,
Jacek
Attachment: Compressed file LX800_issue.ZIP 2.48 MB
Jacek Rudnicki
07/02/2008 3:27 AM
post9894
Re: Problem with Pg.lx800 driver   
Hi,

any news in this topic ?

Don't let to cancel QNX from this very interesting project...

Regards,
Jacek
Michael Van Reenen
07/03/2008 8:41 AM
post10004
Re: Problem with Pg.lx800 driver   
A similar problem was report and corrected.  Please try the attached driver and see if it solves the problem for you.

Thanks
Mike
Attachment: Text Pg.lx800 180.26 KB

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