Sorry, you'd asked about that, before. My secondary monitor shows no signal if the resolution is anything but the maximum, native resolution of the screen.
Changing the refresh rate may temporarily restore drawing to the full screen. However, locking the screen and then allowing it to sleep will trigger another black region at the top of the screen. The effect of different refresh rates is to change the width of the screen. For example, the secondary monitor can run at 120Hz, in which case the black region fills half of the screen, rather than a small slice, as it does at around 60Hz. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2074559 Title: [nouveau] Top margin of secondary monitor covered with black flickering rectangle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2074559/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
