View Full Version : [SOLVED] Modeline for Vizio 32" TV?

September 11th, 2010, 01:45 AM
I have an Nvidia GeForce 6150 integrated video card, and my TV is a Vizio VW32L. I installed the latest recommended driver from the Hardware Drivers. When I open the utility, I can select 1360x768, which is pretty close I thought. I selected this and hit apply, but it cuts off both the right and left side of the screen. For example, I can't see the Applications in the upper left corner. I went in to the TV menu and auto-adjusted, but it still cuts off both sides. I looked around the forums a bit and it sounds like I have to create a modeline. This is from my manual:

47.55 H.Freq (kHz)
59.81 V.Freq (Hz)
Positive H.Sync
Positive V.Sync
85.50 Pixel Freq (MHz)

I typed this in on http://xtiming.sourceforge.net/cgi-bin/xtiming.pl and got the modeline:

Modeline "1360x768@60" 84.50 1360 1392 1712 1744 768 783 791 807

Can anybody verify these settings? Or am I going to screw up my TV? Also, I'm pretty new at this. Where in the xorg.conf file do I put this information?

I was looking at other threads and I think I have to add +HSync +Vsync to the end, because my manual says they're both positive, right?

Any suggestions are greatly appreciated.

September 11th, 2010, 02:13 AM
I just found this in another thread:

Something I posted in another thread, works best if you do all of this via ssh from another machine.
Find your TV's optimal resolution from the manual or online (eg 1366X768@60)
Issue the gtf command:

gtf 1366 768 60

# 1368x768 @ 60.00 Hz (GTF) hsync: 47.70 kHz; pclk: 85.86 MHz
Modeline "1368x768_60.00" 85.86 1368 1440 1584 1800 768 769 772 795 -HSync +Vsync
In your xorg.conf, under your monitor section add the gtf modeline output


Section "Monitor"
Identifier "Monitor0"
VendorName "Proview"
ModelName "Unknown"
HorizSync 31.0 - 80.0
VertRefresh 56.0 - 75.0
Option "DPMS"
Option "ExactModeTimingsDVI" "True"
Modeline "1368x768_60.00" 85.86 1368 1440 1584 1800 768 769 772 795 -HSync +Vsync
and under the screen section add the modeline reference (using only one "Modes" until you find a few that are appropriate, works best)


SubSection "Display"
Depth 24
Modes "1368x768_60.00"
Next issue "/etc/init.d/gdm restart" and hope the overscan is fixed. If it is not a compatible resolution, the screen won't show anything (out of range or something). This is why using ssh is the best approach.

If that "gtf" does not work, you may need to try a different "gtf" depending on your tv resolution. My monitor (1366x768 had an optimal resolution using "gtf 1344 770 60" so don't be afraid to tweak the gtf until you get something that fixes the overscan.
Should I follow this advice? I don't know what SSH is so I won't be doing that... If the screen is out of range, what will I do to get back to Ubuntu? Thanks again.

September 11th, 2010, 03:40 PM
I got it. I followed that guy's advice, and I thought putting 1368 was a typo. When I had the modeline as 1366, it didn't work. I only worked with 1368. Now my monitor looks perfect!!