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Re: 1440x900 with Debian6-19-04-2012 broken

Posted: Sat Apr 21, 2012 10:06 am
by mecarter
Using the latest Debian6-19-04-2012 image, the System Preferences -> Display Settings are preset to 1344x804 and not detecting my ViewSonic VA1930WM native 1440x900 monitor configuration.  The previous Debian6-13-04-2012 image worked fine detecting the Resolution as 1440x900.  What has changed?  How do I fix this to set up 1440x900 resolution?  The monitor is connected via the DVI input.

Re: 1440x900 with Debian6-19-04-2012 broken

Posted: Sat Apr 21, 2012 10:48 am
by dom
Run /opt/vc/bin/tvservice -d edid.dat
And post this file.

Re: 1440x900 with Debian6-19-04-2012 broken

Posted: Sat Apr 21, 2012 11:34 am
by mecarter
How do I post a copy of the file?

Re: 1440x900 with Debian6-19-04-2012 broken

Posted: Sat Apr 21, 2012 11:44 am
by dom
All sorts of ways. Dropbox is generally useful for lots of thing. You can put a file in your public folder, and post a link to it.

Here is a referral link: http://db.tt/BaEuIbo where we both get an extra 250M storage. It is free.

Re: 1440x900 with Debian6-19-04-2012 broken

Posted: Sat Apr 21, 2012 11:55 am
by rogerdean
Same story here - Samsung telly via HDMI. Here's edid.dat http://dl.dropbox.com/u/981187/edid.dat

Am having so much fun with this...

Re: 1440x900 with Debian6-19-04-2012 broken

Posted: Sat Apr 21, 2012 12:27 pm
by dom
@mecarter I think I misunderstood your original post. Reading again, I think the monitor is actually in 1440x900 mode, but you are unhappy the resolution of the framebuffer (and so X) has reduced. That sounds like it is due to overscan adjustment. We now default to not using the edge pixels, as many users complained their TV didn't show them (due to no way of disabling overscan).

Create a file config.txt on boot partition containing "disable_overscan=1".

You can do this in windows, or from Pi:

sudo sh -c "echo disable_overscan=1 >> /boot/config.txt"

should do it. Then reboot.

@rogerdean can you be more specfic. Do you have exactly @mecarter's problem or something different?

Re: 1440x900 with Debian6-19-04-2012 broken

Posted: Sat Apr 21, 2012 1:58 pm
by mecarter
@dom Yes, that fixed it; thank you.

I too am having a lot fun.

Re: 1440x900 with Debian6-19-04-2012 broken

Posted: Sat Apr 21, 2012 3:35 pm
by clifmeister
dom said:


Create a file config.txt on boot partition containing "disable_overscan=1".

You can do this in windows, or from Pi:

sudo sh -c "echo disable_overscan=1 >> /boot/config.txt"

should do it. Then reboot.


I tried this and get Permission denied.

Re: 1440x900 with Debian6-19-04-2012 broken

Posted: Sat Apr 21, 2012 3:40 pm
by rogerdean
Thanks very much indeed dom, same problem, same solution, all well

Roger

Re: 1440x900 with Debian6-19-04-2012 broken

Posted: Sat Apr 21, 2012 3:48 pm
by itsonlyme
Same problem here and now solved. Thanks

Re: 1440x900 with Debian6-19-04-2012 broken

Posted: Sat Apr 21, 2012 3:52 pm
by dom
@clifmeister Really? You typed this in on Pi? What distribution are you using?

You could also do (on Pi) "sudo nano /boot/config.txt" and enter "disable_overscan=1"

Or just use Windows.

Re: 1440x900 with Debian6-19-04-2012 broken

Posted: Fri Apr 27, 2012 3:33 pm
by clifmeister
Using Debian6-19-04-2012, but it turns out my problem was with my keyboard. I am using a standard American Dell keyboard, and when I typed " i got @... Couldn't see it because of the overscan! I used nano and managed to get the overscan disabled. Now I have to figure out how to set the keyboard to US instead of UK!

Re: 1440x900 with Debian6-19-04-2012 broken

Posted: Mon May 07, 2012 2:20 pm
by z0mb13e
I was having the same problem and not getting anywhere with the disable_overscan line in the config. Restarting X didn't have the desired effect. Seems you actually have reboot the Pi... kinda used to not rebooting Linux to fix problems so a reboot seemed overkill... so anyway a reboot fixed it.

(I was gonna post this from the Pi, but the comment field is too slow in Midori to type into).