The cause for me seems that synaptic is locking the package repository on start, but it should only lock it only when it is installing/updating/removing something. If that would be the case, the Additional Drivers tab could be displayed without having to wait for synaptic to exit.
The cause for me seems that synaptic is locking the package repository on start, but it should only lock it only when it is installing/ updating/ removing something. If that would be the case, the Additional Drivers tab could be displayed without having to wait for synaptic to exit.