HDTV Settings, I got my overscan problem fixed.
Posted: Thu Apr 29, 2004 3:26 pm
Gentoox now displays perfectly on my 52" RCA Widescreen HDTV, thank God. So I figured I would share my experience. I will post pictures to this thread tonight when I get home from work.
Thanks to all the forum postings, various web pages, etc, I was able to put the pieces of the puzzle together. One guy's web page that I came across had the correct settings for X Windows to display correctly on an HDTV with 480p.
I will be tweaking the settings to see about 540p or 1080i (my TV doesnt support 720p) - IMO the desktop resolution of 640 x 480 is ridiculously small.
Here is how I did it:
1. DO this from a PuTTY/Terminal/SSH session as root (If X/KDE/XFCE is running the screen will be garbled after this - It is normal and ok):
fbset -g 640 440 640 440 32 -t 37000 100 54 45 33 64 7
2. Then run (this will give you needed parameters for X Windows):
fbset -x
---------------------------
THIS SHOULD APPEAR
---------------------------
Xbox # fbset -x
Mode "640x440"
# D: 27.027 MHz, H: 31.500 kHz, V: 60.000 Hz
DotClock 27.028
HTimings 640 694 758 858
VTimings 440 473 480 525
Flags "-HSync" "-VSync" # Warning: XFree86 doesn't support accel
EndMode
----------------------------
4. Edit "etc/X11/XF86Config-4" (pico XF86Config-4) find "Modeline 'xbox' "
5. Change the settings to what you got from fbset -x
Example:
Modeline "xbox" 27.027 640 694 758 858 440 473 480 525 -HSync -VSync
Exit and save XF86Config-4
6. X windows will still be garbled, You can restart X by pressing CTRL+ALT+BACKSPACE, it should be purdy now.
-Jared
I am a n00b to Linux, but learning quickly. Please dont flame me.
Thanks to all the forum postings, various web pages, etc, I was able to put the pieces of the puzzle together. One guy's web page that I came across had the correct settings for X Windows to display correctly on an HDTV with 480p.
I will be tweaking the settings to see about 540p or 1080i (my TV doesnt support 720p) - IMO the desktop resolution of 640 x 480 is ridiculously small.
Here is how I did it:
1. DO this from a PuTTY/Terminal/SSH session as root (If X/KDE/XFCE is running the screen will be garbled after this - It is normal and ok):
fbset -g 640 440 640 440 32 -t 37000 100 54 45 33 64 7
2. Then run (this will give you needed parameters for X Windows):
fbset -x
---------------------------
THIS SHOULD APPEAR
---------------------------
Xbox # fbset -x
Mode "640x440"
# D: 27.027 MHz, H: 31.500 kHz, V: 60.000 Hz
DotClock 27.028
HTimings 640 694 758 858
VTimings 440 473 480 525
Flags "-HSync" "-VSync" # Warning: XFree86 doesn't support accel
EndMode
----------------------------
4. Edit "etc/X11/XF86Config-4" (pico XF86Config-4) find "Modeline 'xbox' "
5. Change the settings to what you got from fbset -x
Example:
Modeline "xbox" 27.027 640 694 758 858 440 473 480 525 -HSync -VSync
Exit and save XF86Config-4
6. X windows will still be garbled, You can restart X by pressing CTRL+ALT+BACKSPACE, it should be purdy now.
-Jared
I am a n00b to Linux, but learning quickly. Please dont flame me.