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[Guilhermino <guilherminocorreia@xxxxxxxxx>]

Public bug reported:

On a Compaq Presario 2500 laptop with an Ati IGP 345M graphics card,
when connected to an external monitor ( SAMSUNG P2470HD - FullHD
monitor/tv ) through a VGA analog connection, and using the latest open
radeon driver on Lubuntu 14.04.2 with all the latest updates, when using
the native resolution ( 1920x1080@60 ) of the monitor, and even at lower
ones, except the lowest, there are small white lines flickering all over
the display especially when there is movement in the windows or menus,
and sometimes even small fragments of the window contents appear
momentarily across different parts of the monitor. This does not happen
when using a Windows XP installation on the same laptop with the same
monitor and with the same D-Sub cable.

I've tried to install the fglrx driver, but there seems to be none
available for this card either on the AMD website nor on the additional
drivers repository of lubuntu. Installing the fglrx driver, the card was
never recognised. The command "sudo amdconfig --initial" returns the
error message: "amdconfig: No supported adapters detected".

** Affects: xorg-lts-transitional (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1442378

Title:
  latest radeon open driver on lubuntu 14.04 displays white flickering
  scan lines and occasional parts of the windows on external monitor

Status in xorg-lts-transitional package in Ubuntu:
  New

Bug description:
  On a Compaq Presario 2500 laptop with an Ati IGP 345M graphics card,
  when connected to an external monitor ( SAMSUNG P2470HD - FullHD
  monitor/tv ) through a VGA analog connection, and using the latest
  open radeon driver on Lubuntu 14.04.2 with all the latest updates,
  when using the native resolution ( 1920x1080@60 ) of the monitor, and
  even at lower ones, except the lowest, there are small white lines
  flickering all over the display especially when there is movement in
  the windows or menus, and sometimes even small fragments of the window
  contents appear momentarily across different parts of the monitor.
  This does not happen when using a Windows XP installation on the same
  laptop with the same monitor and with the same D-Sub cable.

  I've tried to install the fglrx driver, but there seems to be none
  available for this card either on the AMD website nor on the
  additional drivers repository of lubuntu. Installing the fglrx driver,
  the card was never recognised. The command "sudo amdconfig --initial"
  returns the error message: "amdconfig: No supported adapters
  detected".

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