8.0.1-9.0.2 x86: Incorrect default aspect ratios on refresh rates other than 60Hz [SOLVED]

Quote from vitorp07

@ozolli
I guess you are having more luck than we did, on what kind of hardware you have LibreELEC installed on?

Here is intel 4690s + Nvidia GTX 1070

Intel N3150.

Quote from Teppopups

Upgrade or Clean install? Because LE 7.0.3 didn't have this issue. I suppose that all the settings preserved during the upgrade procedure. This can be verified by doing full config reset on LE 8.0.1.

Clean install on 7.90.x then upgrade since then.

Quote from Teppopups

Hi All,

Great news! I found where is the problem.

The issue is caused by wrong default aspect ratios in the GUI configuration file (guisettings.xml). The file is located in /storage/.kodi/userdata/ directory (also is accessible through the samba share "Userdata"). All resolutions and refresh rates are described separately in the file, so the aspect ratios can be configured differently. By default, 1920x1080@60Hz mode has correct value, but others not. That's why we have black bars on the videos and the image is squeezed horizontally.

To correct this, you have to edit the aspect ratio values in the guisettings.xml file for all required resolutions. I changed only 1920x1080 modes as I'm using only them.

For example, for 1920x1080p@23.98Hz mode, default aspect ratio was 1.009191, which is wrong:
---
<resolution>
<description>HDMI1: 1920x1080 @ 23.98Hz</description>
<subtitles>1042</subtitles>
            <pixelratio>1.009191</pixelratio>
<refreshrate>23.976080</refreshrate>
<output>HDMI1</output>
<xrandrid>0x10f</xrandrid>
<overscan>
<left>0</left>
<top>0</top>
<right>1920</right>
<bottom>1080</bottom>
</overscan>
</resolution>
---
You have to change this value to: 1.000000 for all standard square-pixel resolutions and refresh rates (for example 1920x1080, 1280x720).

Best Regards,
Tepp

Edit:
Seems that you need to stop the Kodi before modifying the file, otherwise it will revert back on restart:

1. stop the Kodi, so it will write the config from memory to a file:
# systemctl stop kodi

2. edit the guisettings.xml file, then start the Kodi again so it will read the configuration:
# systemctl start kodi

3. verify if the file changes preserved after restart:
# systemctl restart kodi

It worked for me, even after several reboots the aspect is still correct: 1.000000

Display More

Thank you for this! While my LE installation works (and looks) just great, I was always slightly annoyed that after a fresh install I had to go into the Video Calibration section and tweek my pixel ratios to get them to 1.000 and it would often jump from .998 to 1.001 or something like that while using the left/right buttons on my remote. It took several attempts to hit 1.000. Now I can just edit the guisettings.xml file.

Gratitude!

Quote from Teppopups

Today I realized that my aspect settings also reverted to original wrong values

Edit:
Seems that you need to stop the Kodi before modifying the file, otherwise it will revert back on reboot/restart:

1. stop the Kodi, so it will write the config from memory to a file:
# systemctl stop kodi

2. edit the guisettings.xml file, then start the Kodi again so it will read the configuration:
# systemctl start kodi

3. verify if the file changes preserved after restart:
# systemctl restart kodi

It worked for me, even after several reboots the aspect is still correct: 1.000000

Display More

Stopping Kodi before making these changes worked here also.
Again Thank you

Thanks for this, I noticed the little black bars left and right on 25fps material and managed to fix this using this.