At the time of the last Lintian run, the following possible problems were found in packages maintained by Petr Baudis <email@example.com>, listed by source package. See also the full report, including info, experimental and overridden tags. Also see their QA overview.
mate-panel (1.20.5-1) [Uploader] §
mate-power-manager (1.22.1-1) [Uploader] §