Update: For some reason the bug appeared again, making the screen go black ervey reboot (tried 3 times). Re-installing the .debs (bisect01) helped.
Helge's assumption seems to hold for my laptop (Lenovo Thinkpad S430), if "dual VGA" means 2 different VGA lines showing up in lspci: $ lspci |grep VGA 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation Device 0de8 (rev a1)
Update: For some reason the bug appeared again, making the screen go black ervey reboot (tried 3 times). Re-installing the .debs (bisect01) helped.
Helge's assumption seems to hold for my laptop (Lenovo Thinkpad S430), if "dual VGA" means 2 different VGA lines showing up in lspci:
$ lspci |grep VGA
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
01:00.0 VGA compatible controller: NVIDIA Corporation Device 0de8 (rev a1)