@ Robert, Thanks for the help
1024x768 worked for me.
@J.L.
I checked the specs for my TV . It has the supported computer resolutions ( This might be a fixed standard - I am a newbie and have no idea about this) and try the options. The higher resolutions didn't work. Try lower ones.

Vidya.

On Mon, Jul 26, 2010 at 1:16 PM, Vidya Menon <vids.menon@gmail.com> wrote:

Hi Robert,

Is that the resolution of your TV? Or did this config work for you instead
of 1920x1080@60?
I tried giving both the options. But still I get a "mode not supported"
message.

Thanks for the format. The kernel error I was getting was because of the
wrong format I was using with my kernel version.

Thanks,
Vidya


Robert Vogt IV wrote:
>
> Hi Vidya,
>
> I had no trouble with 1280x720MR-16@60 (720p)
>
>
> Robert
>
>
>
> On Mon, Jul 26, 2010 at 3:29 PM, Vidya Menon <vids.menon@gmail.com> wrote:
>>
>> Hello Steve,
>>
>> I am trying to get video output on HDTV and was following this
>> discussion.
>> When I do a printenv at uboot, I see an env variable called "dvimode"
>>
>> dvimode=1024x768MR-16@60
>>
>> I tried changing this to different modes by using the setenv command
>>
>> eg: setenv dvimode 1920x1080@30
>>
>> However, when I boot I am getting the following error:
>> Starting PVR
>> omaplfb: OMAPLFB_Init: OMAPLFBInit failed
>> FATAL: Error inserting omaplfb
>> (/lib/modules/2.6.33/kernel/drivers/gpu/pvr/omaplfb.ko): No such device
>>
>> I was wondering if it is because this resolution is not supported? Where
>> can
>> I find this file omapfb_main.c - so that I can check the supported
>> resolutions.
>>
>> Is the resolution 1920x1080@60 not supported yet?
>>
>> Thanks
>> Vidya.
>>
>>
>> sakoman wrote:
>>>
>>> On Mon, Jan 12, 2009 at 12:52 PM, Elvis Dowson <elvis.dowson@mac.com>
>>> wrote:
>>>> Hi,
>>>>        I just got the Overo and Summit fresh out of the box, so to
>>>> speak. :-) I just plugged it in and connected it to the console port
>>>> and I'm able to access it just find.
>>>>
>>>> However, what escapes me is how I can get a graphical login screen to
>>>> appear. I've heard that there is an Enlightnment desktop that's
>>>> supposed to appear, but don't know how to get that started.
>>>
>>> As shipped from the factory the display resolution is set to 1024 x
>>> 768 @ 60hz.  This works with most LCD computer monitors (note that for
>>> many monitors you will need to use an hdmi to dvi-d adaptor)
>>>
>>> As you discovered, many LCD *TV's* do not support this resolution.  Do
>>> you have an LCD computer monitor you can try?
>>>
>>>> So, not sure if I can actually get a graphical login going with my
>>>> current build, or is it failing because of the display resolution not
>>>> being supported with my display monitor. Typing the command on the
>>>> console did not work.
>>>
>>> The OMAP3 video driver does not currently support changing the
>>> resolution with fbset.
>>>
>>> More recent versions of u-boot and kernel support changing the
>>> resolution with a kernel command line option, but only for a limited
>>> set of options.
>>>
>>> This is done using a u-boot environment variable.  If you type the
>>> u-boot printenv command you will see this line in the output:
>>>
>>> videomode=1024x768@60,vxres=1024,vyres=768
>>>
>>> You can use the setenv command to change the videomode variable to one
>>> of the .name options you find in the omapfb_main.c video_modes table:
>>>
>>> static struct video_mode video_modes[] __initdata = {
>>>       {
>>>               /* 640 x 480 @ 60 Hz  Reduced blanking VESA CVT 0.31M3-R
>>> */
>>>               .name           = "640x480@60",
>>>               .x_res          = 640,
>>>               .y_res          = 480,
>>>               .hfp            = 48,
>>>               .hsw            = 32,
>>>               .hbp            = 80,
>>>               .vfp            = 3,
>>>               .vsw            = 4,
>>>               .vbp            = 7,
>>>               .pixel_clock    = 23500,
>>>       },
>>>       {
>>>               /* 800 x 600 @ 60 Hz  Reduced blanking VESA CVT 0.48M3-R
>>> */
>>>               .name           = "800x600@60",
>>>               .x_res          = 800,
>>>               .y_res          = 600,
>>>               .hfp            = 48,
>>>               .hsw            = 32,
>>>               .hbp            = 80,
>>>               .vfp            = 3,
>>>               .vsw            = 4,
>>>               .vbp            = 11,
>>>               .pixel_clock    = 35500,
>>>       },
>>>       {
>>>               /* 1024 x 768 @ 60 Hz  Reduced blanking VESA CVT 0.79M3-R
>>> */
>>>               .name           = "1024x768@60",
>>>               .x_res          = 1024,
>>>               .y_res          = 768,
>>>               .hfp            = 48,
>>>               .hsw            = 32,
>>>               .hbp            = 80,
>>>               .vfp            = 3,
>>>               .vsw            = 4,
>>>               .vbp            = 15,
>>>               .pixel_clock    = 56000,
>>>       },
>>>       {
>>>               /* 1280 x 720 @ 60 Hz  Reduced blanking VESA CVT 0.92M9-R
>>> */
>>>               .name           = "1280x720@60",
>>>               .x_res          = 1280,
>>>               .y_res          = 720,
>>>               .hfp            = 48,
>>>               .hsw            = 32,
>>>               .hbp            = 80,
>>>               .vfp            = 3,
>>>               .vsw            = 5,
>>>               .vbp            = 13,
>>>               .pixel_clock    = 64000,
>>>       },
>>>       {
>>>               /* 720 x 480 @ 60 Hz  CEA-861 Format 3 */
>>>               .name           = "480p60",
>>>               .x_res          = 720,
>>>               .y_res          = 480,
>>>               .hfp            = 16,
>>>               .hsw            = 62,
>>>               .hbp            = 60,
>>>               .vfp            = 9,
>>>               .vsw            = 6,
>>>               .vbp            = 30,
>>>               .pixel_clock    = 27027,
>>>       },
>>>       {
>>>               /* 720 x 576 @ 60 Hz  CEA-861 Format 18 */
>>>               .name           = "576p50",
>>>               .x_res          = 720,
>>>               .y_res          = 576,
>>>               .hfp            = 12,
>>>               .hsw            = 64,
>>>               .hbp            = 68,
>>>               .vfp            = 5,
>>>               .vsw            = 5,
>>>               .vbp            = 39,
>>>               .pixel_clock    = 27000,
>>>       },
>>>       {
>>>               /* 1280 x 720 @ 50 Hz  CEA-861B Format 19 */
>>>               .name           = "720p50",
>>>               .x_res          = 1280,
>>>               .y_res          = 720,
>>>               .hfp            = 440,
>>>               .hsw            = 40,
>>>               .hbp            = 220,
>>>               .vfp            = 20,
>>>               .vsw            = 5,
>>>               .vbp            = 5,
>>>               .pixel_clock    = 74250,
>>>       },
>>>       {
>>>               /* 1280 x 720 @ 60 Hz  CEA-861B Format 4 */
>>>               .name           = "720p60",
>>>               .x_res          = 1280,
>>>               .y_res          = 720,
>>>               .hfp            = 110,
>>>               .hsw            = 40,
>>>               .hbp            = 220,
>>>               .vfp            = 20,
>>>               .vsw            = 5,
>>>               .vbp            = 5,
>>>               .pixel_clock    = 74250,
>>>       },
>>>       {
>>>               /* 1920 x 1080 @ 24 Hz  CEA-861B Format 32 */
>>>               .name           = "1080p24",
>>>               .x_res          = 1920,
>>>               .y_res          = 1080,
>>>               .hfp            = 148,
>>>               .hsw            = 44,
>>>               .hbp            = 638,
>>>               .vfp            = 36,
>>>               .vsw            = 5,
>>>               .vbp            = 4,
>>>               .pixel_clock    = 74250,
>>>       },
>>>       {
>>>               /* 1920 x 1080 @ 25 Hz  CEA-861B Format 33 */
>>>               .name           = "1080p25",
>>>               .x_res          = 1920,
>>>               .y_res          = 1080,
>>>               .hfp            = 148,
>>>               .hsw            = 44,
>>>               .hbp            = 528,
>>>               .vfp            = 36,
>>>               .vsw            = 5,
>>>               .vbp            = 4,
>>>               .pixel_clock    = 74250,
>>>       },
>>>       {
>>>               /* 1920 x 1080 @ 30 Hz  CEA-861B Format 34 */
>>>               .name           = "1080p30",
>>>               .x_res          = 1920,
>>>               .y_res          = 1080,
>>>               .hfp            = 148,
>>>               .hsw            = 44,
>>>               .hbp            = 88,
>>>               .vfp            = 36,
>>>               .vsw            = 5,
>>>               .vbp            = 4,
>>>               .pixel_clock    = 74250,
>>>       },
>>> };
>>>
>>>> I also don't have a computer that has a microSD/SD card reader, so it
>>>> makes it difficult to create a bootable microSD card. I tried using
>>>> the Overo itself to prepare the bootable microSD card, but got stuck
>>>> at the point of formatting the microSD card because the Overo factory
>>>> image does not have a mkfs.vfat utility.
>>>
>>> Time to buy a cheap ($10-ish) USB card reader!
>>>
>>> Newer images do contain vfat, but obviously this is a chicken/egg
>>> problem for you.  I recommend a shopping trip :-)
>>>
>>> Steve
>>>
>>>
>>>> On Jan 13, 2009, at 12:18 AM, Koen Kooi wrote:
>>>>
>>>>> On 12-01-09 20:31, Elvis Dowson wrote:
>>>>>> Hi,
>>>>>>      I'm using an Overo with the summit expansion board connected to
>>>>>> an
>>>>>> HDMI LCD TV (1920x1600 @60Hz). When I ran fbset, I get 1024x768-58"
>>>>>> using the Overo console.
>>>>>>
>>>>>> How can I change this setting to 1920x160-60 ?
>>>>>
>>>>> depending on your kernel:
>>>>>
>>>>> video=omapfb:vram:6M,mode:1920x1600@60
>>>>>
>>>>> or
>>>>>
>>>>> omapfb.mode=1920x1600MR-16@60
>>>>>
>>>>> There's a but: the pixclock can be 86MHz maximum, which when I tried
>>>>> this weekend gave me 1600x1200@40Hz, you could tweak the timings a bit
>>>>> to get some more Hertzes, but I don't think you'll make 1920x1600.
>>>>>
>>>>> I'll leave it to Steve to comment on what DSS the overo uses by
>>>>> default :)
>>>>>
>>>>> regards,
>>>>>
>>>>> Koen
>>>>>
>>>>
>>>>
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