[Openchrome-users] Widescreen flat panels and CLE266

[Thomas Hellström]

Hi!

Atro Tossavainen wrote:

>Hi,
>
>Just splurged out on a Fujitsu 19" widescreen flat panel for my EPIA
>M10000.
>
>I am dreaming of being able to get the CLE266 to display the 1440x900
>native mode of this monitor properly.  Is it possible at all, and what
>do I need for this to work?  I've already upgraded from XFree86 4.5.0
>to X.org 7.0 and have generated the necessary Modelines (for that,
>1366x768, 1280x768 and 1280x720) with xtiming.sourceforge.net, but am
>getting this:
>
>(II) VIA(0): Not using mode "1440x900" (horizontal sync too wide)
>(II) VIA(0): CrtcHSyncEnd out of range.
>
>in the Xorg.0.log.
>
>The monitor reports sync information with DDC, vertrefresh being from
>56 to 75 Hz, horizsync from 31 to 83 kHz, PixClock 140 MHz, and these
>future video modes:
>
>(II) VIA(0): Supported Future Video Modes:
>(II) VIA(0): #0: hsize: 1152  vsize 864  refresh: 75  vid: 20337
>(II) VIA(0): #1: hsize: 1280  vsize 720  refresh: 60  vid: 49281
>(II) VIA(0): #2: hsize: 1280  vsize 720  refresh: 75  vid: 53121
>(II) VIA(0): #3: hsize: 1280  vsize 1024  refresh: 60  vid: 32897
>(II) VIA(0): #4: hsize: 1440  vsize 900  refresh: 60  vid: 149
>(II) VIA(0): Supported additional Video Mode:
>(II) VIA(0): clock: 106.5 MHz   Image Size:  410 x 256 mm
>(II) VIA(0): h_active: 1440  h_sync: 1520  h_sync_end 1672 h_blank_end 1904 h_border: 0
>(II) VIA(0): v_active: 900  v_sync: 903  v_sync_end 909 v_blanking: 942 v_border: 0
>
>Regards,
>  
>
The trick is that (h_sync_end - h_sync_start) (The 1760 and 1504 in the 
modeline below) must be  <= 256. Also the clock (108.00) must be in the 
table in via_mode.h.

You might try the below modeline (with the usual disclaimers that it 
might ruin your monitor etc., and it is not my fault.)

ModeLine "1440x900" 108.00 1440 1504 1760 1852 900 902 914 940 #58kHz H 
62Hz V

/Thomas