miguelquiros : You seem to hit a specific bug since a lot of screensavers have the problem in your case. Can you open a new bug report for linux-restricted-modules and attach the resulting file from that command in a terminal : sudo lspci -nnvv > lspci-nnvv.txt ?
miguelquiros : You seem to hit a specific bug since a lot of screensavers have the problem in your case. Can you open a new bug report for linux-restricte d-modules and attach the resulting file from that command in a terminal : sudo lspci -nnvv > lspci-nnvv.txt ?