daytek DT-77A monitor out of range errors
 

Hi All

I have a second hand Daytek DT-77A - 17" monitor ..
I'm using Linux fedora core 1.0 on an AMD Athlon box with ProSavage 32mb video.

The monitor gives me "out of range" errors everytime I switch to X.

The installation did not detect the monitor and I have tried to install using other daytek 17" drivers and a generic 17" driver (there is no driver for the DT77A in the list ).. everything gives me the same result ..

I wondered if anyone could help ..
thanks ...

Hi.

According to a website, which I have now lost, that monitor can do:

30-69KHz H. Frequency, and 50-120Hz V. Frequency.

So, edit /etc/X11/XF86Config and change 'HorizSync' to 30 - 69 and change 'VertRefresh' to 50.0 - 120.0

Dave

thanks Dave -

I did that - so my monitor section of /etc/X11/XF86Config looks like:
Section "Monitor"
Identifier "Monitor0"
Vendorname "MonitorVendor"
Modelname "oec0706"
HorizSync 30.0 - 69.0
VertRefresh 50.0 - 120.0
Option "dpms"

But, I still get the same error when I startx. It looks like:
1. A white box with a blue border moving jerkily around on a black screen.
2. A flashing red message at the top of the box reads "out of range".
3. On the next line there is blue writing (which does not flash) which reads "Hf 30 KHz - 70KHz"
4. The next line reads "Vf 50Hz - 160 Hz" also in blue writing.
5. The last line has another flashing red message which reads
"20.6KHz 25Hz" (Just like that, with no dashes between the frequencies, just space)

I restarted X, and later rebooted with the new /etc/X11/XF86Config - just to be sure - but the same problem happened.

Any other ideas? - does the rest of my monitor section above look right?

Try using the vesa driver for your video card (also in XF86Config).

Your Monitor section looks fine. Very strange.

Dave

Hi again

I've got new frequency ranges on the phone from DayTek in Vancouver, they say I should try Horiz 48.36-68.67, vert 60.00-84.99 at 1024x768 res. I'll report back.

Dave - if you're still there - .. do you mind telling me what the XF86Config hack is for changing the video card driver to vesa, pls.

Look for a bit that says

Driver "xxxx"

Change the xxxx to vesa.

we are up and running
 

finally got to do that hack and ITS ALL WORKING .. !!

the new range values from Daytek Vancouver got me past the "out of range error" OK.

But then I was hit with a "no screens found error" - so I used that "vesa" driver hack Dave told me about (see above).

ie. In /etc/X11/XF86config, as root, I edited the "Videocard" block in the file, on the "Driver" line I removed the driver named "savage" and put in "vesa", saved the file, restarted X.. and I was up and running ..! beyadiful ..

Thanks Dave !!