Comment 5 for bug 1933758

Yup I tried that but no hope,I tried all the possible combinations.For other distro's this usually works fine.Even with the older version of Ubuntu this worked, but after that update to Ubuntu 21.04 this isn't working anymore.
I tried changing hdmi_mode=39/86/87,hdmi_group=2 and hdmi_cvt=1366 768 60 3 0 0 1 as well as 1360 768 60 3 0 0 1.

This is what listed in my monitors.xml file:

<monitors version="2">
  <configuration>
    <logicalmonitor>
      <x>0</x>
      <y>0</y>
      <scale>1</scale>
      <primary>yes</primary>
      <monitor>
        <monitorspec>
          <connector>HDMI-1</connector>
          <vendor>AGO</vendor>
          <product>0x0001</product>
          <serial>0x434e3031</serial>
        </monitorspec>
        <mode>
          <width>1360</width>
          <height>768</height>
          <rate>60.015655517578125</rate>
        </mode>
      </monitor>
    </logicalmonitor>
  </configuration>
</monitors>