I think that this bug is related to the nouveau driver or to my Nvidia card : my laptop (that has the same installation but has an Intel graphical card) has no problems.
For information :
$ lspci | grep VGA 18:01:00.0 VGA compatible controller: NVIDIA Corporation G86 [GeForce 8300 GS] (rev a1)
I think that this bug is related to the nouveau driver or to my Nvidia card : my laptop (that has the same installation but has an Intel graphical card) has no problems.
For information :
$ lspci | grep VGA
18:01:00.0 VGA compatible controller: NVIDIA Corporation G86 [GeForce 8300 GS] (rev a1)