Hi, the T560 doesn't contain radeon graphics, so there's no point in trying RADEON* settings.
The flickering occurs on battery power only? Then try to disable ALPM [1]: > SATA_LINKPWR_ON_BAT=max_performance Please provide the full output of (as root) > tlp-stat [1] http://linrunner.de/en/tlp/docs/tlp-configuration.html#alpm Regards -- Thomas Koch