Lucid Lynx: External monitor not working.

[beyondsunset]

Hello,
I am new to kubuntu, just switched from Fedora.
I am using Kubuntu 10.04. KDE 4.4.2
My laptop Sony Vaio-vpcee23fx. AMD vision, 64 bit.

Through HDMI, it recognizes the external monitor (Emerson 32" TV), I can edit the options and resolution etc. There is just no output in the TV that I can see.

It works fine while on Win 7.

Any suggestion/concerns will be appreciated. Thank you.

[oshunluvr]

Re: Lucid Lynx: External monitor not working.

whats the output of xrandr -q in a terminal?

[beyondsunset]

Re: Lucid Lynx: External monitor not working.

This is before HDMI connected-

xrandr -q
Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192
VGA-0 disconnected (normal left inverted right x axis y axis)
LVDS connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
1366x768 60.0*+
1280x720 59.9
1152x768 59.8
1024x768 59.9
800x600 59.9
848x480 59.7
720x480 59.7
640x480 59.4
HDMI-0 disconnected (normal left inverted right x axis y axis)

This is after HDMI connected-

xrandr -q
Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192
VGA-0 disconnected (normal left inverted right x axis y axis)
LVDS connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
1366x768 60.0*+
1280x720 59.9
1152x768 59.8
1024x768 59.9
800x600 59.9
848x480 59.7
720x480 59.7
640x480 59.4
HDMI-0 connected (normal left inverted right x axis y axis)
1280x720 60.0 +
1360x768 60.0
1280x768 60.0
1024x768 60.0
800x600 60.3
720x480 59.9
640x480 60.0

And this is the control panel while HDMI is connected and enabled-

[oshunluvr]

Re: Lucid Lynx: External monitor not working.

Next you need to find the specs for your Emerson TV.

You need at least Native Resolution, refresh rate

I suspect it needs 75htz.

Then create a test modeline using cvt in a terminal.

Then you need to add the mode to the HDMI connector and test it. Once you've figured out the correct resolution, you can either create an /etc/X11/xorg.conf file or load your xrandr commands into rc.local.

[beyondsunset]

Re: Lucid Lynx: External monitor not working.

Hello oshulluvr,

umm...I am a little lost here.
How do I create a test modeline?
And what do I write in the xorg.config file?

Not sure if it helps but,
When I opened the xorg.config.failsafe file, it contains this-

Section "Device"
Identifier "Configured Video Device"
Driver "fbdev"
EndSection

Section "Monitor"
Identifier "Configured Monitor"
EndSection

Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
EndSection