[cejstrup]

Finally got to it, here's the displaymodes according to the manual, hope you can help me!

TV : 46" LCD-TV Samsung LE46A686

CEA: 1920x1080p
Horizontal freq: 15-65 KHz
Vertical freq: 50-76 Hz
Max. pixel clock: 165.000 MHz
Sync Polarity: +/+

Is this what you need?

Here's some for 50Hz:

Section "Monitor"
Identifier "Samsung LE46A686"
ModelName "Generated by Another Modeline Calculator"
HorizSync 15-65
VertRefresh 50-76
DisplaySize 1020 574 # Aspect ratio 1.778:1
# Default modes
Modeline "512x288" 20.76 512 544 592 672 288 289 292 309 doublescan # 20.76 MHz, 30.90 kHz, 50.00 Hz
Modeline "640x360" 32.73 640 688 752 848 360 361 364 386 doublescan # 32.73 MHz, 38.60 kHz, 50.00 Hz
Modeline "768x432" 46.94 768 824 904 1016 432 433 436 462 doublescan # 46.94 MHz, 46.20 kHz, 50.00 Hz
Modeline "960x540" 72.81 960 1024 1120 1264 540 541 544 576 doublescan # 72.81 MHz, 57.60 kHz, 50.00 Hz
Modeline "1024x576" 83.15 1024 1096 1200 1352 576 577 580 615 doublescan # 83.15 MHz, 61.50 kHz, 50.00 Hz
Modeline "1280x720" 64.73 1280 1368 1496 1688 720 721 724 767 # 64.73 MHz, 38.35 kHz, 50.00 Hz
Modeline "1536x864" 93.10 1536 1640 1792 2024 864 865 868 920 # 93.10 MHz, 46.00 kHz, 50.00 Hz
Modeline "1792x1008" 126.92 1792 1920 2096 2368 1008 1009 1012 1072 # 126.92 MHz, 53.60 kHz, 50.00 Hz
Modeline "1920x1080" 145.69 1920 2056 2248 2536 1080 1081 1084 1149 # 145.69 MHz, 57.45 kHz, 50.00 Hz
EndSection # Samsung LE46A686



and for the hardware maximum.

Section "Monitor"
Identifier "Samsung LE46A686"
ModelName "Generated by Another Modeline Calculator"
HorizSync 15-65
VertRefresh 50-76
DisplaySize 1020 574 # Aspect ratio 1.778:1
# Default modes
Modeline "512x288" 31.56 512 544 592 672 288 289 292 309 doublescan # 31.56 MHz, 46.97 kHz, 76.00 Hz
Modeline "640x360" 49.75 640 688 752 848 360 361 364 386 doublescan # 49.75 MHz, 58.67 kHz, 76.00 Hz
Modeline "768x432" 35.67 768 824 904 1016 432 433 436 462 # 35.67 MHz, 35.11 kHz, 76.00 Hz
Modeline "960x540" 55.33 960 1024 1120 1264 540 541 544 576 # 55.33 MHz, 43.78 kHz, 76.00 Hz
Modeline "1024x576" 63.19 1024 1096 1200 1352 576 577 580 615 # 63.19 MHz, 46.74 kHz, 76.00 Hz
Modeline "1280x720" 98.40 1280 1368 1496 1688 720 721 724 767 # 98.40 MHz, 58.29 kHz, 76.00 Hz
Modeline "1536x864" 131.56 1536 1640 1792 2024 864 865 868 920 # 131.56 MHz, 65.00 kHz, 70.65 Hz
Modeline "1792x1008" 153.92 1792 1920 2096 2368 1008 1009 1012 1072 # 153.92 MHz, 65.00 kHz, 60.63 Hz
Modeline "1920x1080" 164.84 1920 2056 2248 2536 1080 1081 1084 1149 # 164.84 MHz, 65.00 kHz, 56.57 Hz
EndSection # Samsung LE46A686




however, you should be able to use my modeline since your freq ranges are within the ranges of my TV and video card. Did you try that ? Then you'd have 1080p@60Hz also.

[dannybullit]

AFAIK players, e.g. BluRay or here XBMC would ouput 24p as 24hz signal to the TV set, and then, as mentioned above, a TV Set with 24p support (Pulldown etc.) converts the signal to 48 or 72hz. It's not XBMC that is supposed to do that conversion.

boba

I´ve finally managed to get 1080p using the default xorg.cong included in 9.04 live. I added Option "DynamicTwinView" "False" and Option "Something with native scaling" "True"

If I in xbmc select "1920x1080 60Hz" or "1920x1080 25Hz the TV receives a 1080p signal. When selecting "1920x1080 50Hz, the TV receives a 1080i signal


When enabling "adjust refresh rate automatically" things goes a bit crazy!
When playing a blueray it works fine, 24Hz in 1080p. But when playing a NTSC or PAL DVD - the TV receives a 1080i signal. Pressing Z indicates that 50Hz is the output frequency with both PAL/NTSC. bluray output is in 24Hz.

Br, Daniel

[dlmh]

Here's some for 50Hz:
however, you should be able to use my modeline since your freq ranges are within the ranges of my TV and video card. Did you try that ? Then you'd have 1080p@60Hz also.

Thanks! All I need though is 1080p24 (23.976Hz), 1080p50 and 1080p60.

Setting "DynamicTwinView" to "False" actually showed correct refreshrate in Screen-settings, but it was limited to 24, 25, 30, 50 and 60Hz, 23.976Hz wasn't there (like it was in Windows). However, if I choose any of the refreshrates it still outputs 1080p60 and when watching 24p material (and having "automatic refreshrate" ON) my TV still says it's 60Hz (not 24Hz like it should).

So... I now DO get correct refreshrate (with the lack of 23.976Hz), but I can't use them...

I will try adding modelines, but I'm starting to think I will never get rid of Windows

[preppie]

Have you tried

turning strictbinding to "true" under .xbmc/userdata/guisettings.xml?

did it for me.

[Peluko]

Hello.

I have a problem when XBMC switchs mode to 24p. For some reason, it displays the video stretched, covering the left and upper part of the screen. When I press 'Z' it says that video is zoomed from 1920x1080 to 1440x900 or something. Pressing 'Z' until it says that is zooming from 1920x1090 to 1920x1080 then it says that zoom is 2.0x, the video is displayed at proper size but moved to the upper left corner, keeping part of the videoframe out of the screen and the right/down part of the screen is black.

If I start X in 24Hz mode, then XBMC works perfectly displaying 24p movies, but when I try a 25Hz movie, it switchs the display to 50Hz and I get the same problem.

Here is the log playing a 24p movie:

http://pastebin.com/m2e6bdc4a

I've tried with VDPAU disabled and it's the same.

Any ideas?

Thanks in advance.

Edit:

XBMC svn revision 20655
Ubuntu Linux 9.04
Motherboard Asus P5N7A-VM with integrated nVidia 9300 w/512 Mb assigned memory.

[Peluko]

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[Peluko]

Hello.

I have a problem when XBMC switchs mode to 24p. For some reason, it displays the video stretched, covering the left and upper part of the screen. When I press 'Z' it says that video is zoomed from 1920x1080 to 1440x900 or something. Pressing 'Z' until it says that is zooming from 1920x1090 to 1920x1080 then it says that zoom is 2.0x, the video is displayed at proper size but moved to the upper left corner, keeping part of the videoframe out of the screen and the right/down part of the screen is black.

If I start X in 24Hz mode, then XBMC works perfectly displaying 24p movies, but when I try a 25Hz movie, it switchs the display to 50Hz and I get the same problem.

Here is the log playing a 24p movie:

http://pastebin.com/m2e6bdc4a

I've tried with VDPAU disabled and it's the same.

Any ideas?

Thanks in advance.

Edit:

XBMC svn revision 20655
Ubuntu Linux 9.04
Motherboard Asus P5N7A-VM with integrated nVidia 9300 w/512 Mb assigned memory.

Hello.

I've been messing around with xrandr just to see if I can do something to solve this, but no luck. Xrandr works perfectly, I can switch modes in my X desktop without a problem. And also, if I put the display in 24Hz with xrandr using the same code that XBMC uses (I can see it in the log), and then launch XBMC, when I play the 24p movie it works perfectly. But I've made other test: I start XBMC in 60Hz (windowed), then, in a terminal, I put the display in 24Hz with xrandr. Then I go to fullscreen in XBMC and play the 24p movie, I got the same problem, XBMC displays the movie resized to a bit more than halfscreen.

Any ideas?

Thanks.

[whop]

Then I go to fullscreen in XBMC and play the 24p movie, I got the same problem, XBMC displays the movie resized to a bit more than halfscreen.

Have you tried with a fresh ~/.xbmc? i.e rename ~/.xbmc or ~/.xbmc/userdata/guisettings.xml. I had some similar problems when setting up my modelines which was solved by this.

[Peluko]

Have you tried with a fresh ~/.xbmc? i.e rename ~/.xbmc or ~/.xbmc/userdata/guisettings.xml. I had some similar problems when setting up my modelines which was solved by this.

It works!! Do you have an idea about the amount of time I've wasted with this!!!!!

Thanks!!

[dlmh]

For people with the following problem:

1: Refreshrates shown in XBMC are 52,53,54,55,56,57,58 Hz

Add the following to xorg.conf in the "Screen" section:

Code:

Option "DynamicTwinView" "False"

Then, if you have this second problem:

2: The refreshrates are now shown correctly, but XBMC will not switch the refreshrates accordingly with the media being played (24Hz/50Hz/60Hz), although it says so when you press 'O' during playback, add the following to xorg.conf in the "Screen" section:

Code:

Option "FlatPanelProperties" "Scaling = Native"

[spozen]

I really dont get this 24p stuff, would be great if anyone could clarify somethings for me .

I am now running 1080p@25Hz. And now it's less stuttering in 1080p videos.
But if i use "adjust referesh rate ... ". All i get is a small picture in the left corner. And 50Hz on all videos.

What is it supposed to do? Change referashe rate according to SD/HD or what?

Anyways i don't see why i have to use it since every video runs smooth now.

There's also this "Sync back to display" i am wondering about, whats this all about, what does it do and why do i need it?

And why should i switch to 50 or 60Hz when viewing SD material, isn't that stuff 30fps?

[dlmh]

I really dont get this 24p stuff, would be great if anyone could clarify somethings for me .

I am now running 1080p@25Hz. And now it's less stuttering in 1080p videos.
But if i use "adjust referesh rate ... ". All i get is a small picture in the left corner. And 50Hz on all videos.

What is it supposed to do? Change referashe rate according to SD/HD or what?

Anyways i don't see why i have to use it since every video runs smooth now.

There's also this "Sync back to display" i am wondering about, whats this all about, what does it do and why do i need it?

And why should i switch to 50 or 60Hz when viewing SD material, isn't that stuff 30fps?

If you have a 24Hz (=23.976Hz) film source and play this back on a 60 Hz display you will get 3:2 pull down judder. Why? Because to be able to show a frame every 1/60 of a second it will show every third frame two times, while the other two frames will be shown three times. In a panning scene you will notice this as a rapid speed up and slow down in the motion.

Ideally you want every frame to be shown once (1:1) or a multiple (2:2, 3:3, etc).

Modern HDTV's have the ability to display at 24Hz, 50Hz and 60Hz. So, for film material shot at 24 fps it will show every frame once, for SD (PAL) material it will show every frame twice and for NTSC material it will also show every frame twice.

If you think that everything is smooth at 25Hz, either:

1: you're not sensitive to motion judder
2: your TV is actually playing back at 24Hz
3: the material you are watching is actually 25Hz/50Hz.

If your TV doesn't support 24p you better set it to 60Hz for 24p and NTSC materal, and 50Hz for PAL. Watching 24p at 50Hz will give horrible motion judder.

[vikjon0]

ok, good explaination.

What about this:

But if i use "adjust referesh rate ... ". All i get is a small picture in the left corner. And 50Hz on all videos.

[dlmh]

ok, good explaination.

What about this:

Usually deleting the guisettings.xml will fix those weird problems. In XBMC Live you can press "ALT + F2" to go to the terminal. Then type in:

Code:

rm ~/.xbmc/userdata/guisettings.xml

.

Mind you: this will delete all of your settings so you better make a backup of this file when you got everything working.

If you still experience problems you can try some of the xorg.conf tweaks mentioned in this thread and others.

[spozen]

That really cleared out everything, thanks dlmh!

I know my TV has 24P support so i guess it just XBMC that think it's 25Hz. But the material i have is mostly NTSC, PAL and 24P, do i need to use the "adjust refresh rate". Or can i run 24p all the time?

And i am defenatly sensitive to motion judder, because i noticed it alot when running at 50Hz.

ok, good explaination.

What about this:

So you have the same problem?

Usually deleting the guisettings.xml will fix those weird problems. In XBMC Live you can press "ALT + F2" to go to the terminal. Then type in:

Code:

rm ~/.xbmc/userdata/guisettings.xml

.

Mind you: this will delete all of your settings so you better make a backup of this file when you got everything working.

If you still experience problems you can try some of the xorg.conf tweaks mentioned in this thread and others.

I will try this because i am pretty sure it's needed.