Wenzhuo, Bruno, Russ, sten, Johannes: this was originally a bug report about volume hotkey handling, which is the only issue affecting the vast majority of the models listed in the bug title. Only the T42 and X32 appear to also have an issue with the brightness keys, the solution for which is going to be largely orthogonal to the volume key fix.
Please file a new bug report about the brightness hotkey handling, and provide a link to the bug here. As Johannes mentions, that bug should actually be quite a bit /easier/ to fix than the volume hotkey bug, so we should disentangle these two issues.
Wenzhuo, Bruno, Russ, sten, Johannes: this was originally a bug report about volume hotkey handling, which is the only issue affecting the vast majority of the models listed in the bug title. Only the T42 and X32 appear to also have an issue with the brightness keys, the solution for which is going to be largely orthogonal to the volume key fix.
Please file a new bug report about the brightness hotkey handling, and provide a link to the bug here. As Johannes mentions, that bug should actually be quite a bit /easier/ to fix than the volume hotkey bug, so we should disentangle these two issues.