I have a Viewsonic VX2475Smhl-4K attached with a DisplayPort cable to a Gigabyte GTX 970 (nvidia-358 driver, ASUS Z97-A, UEFI boot with CSM disabled), and it requires `xrandr --auto` after being power cycled. That's easy to set to a keyboard shortcut when logged in, but harder in xflock4. Even less amusing, Linux text VTs don't work until an `xrandr --auto` in an X session.
There were reports that non-VESA-compliant DisplayPort cables that wire pin 20 (DP_PWR) cause this problem, but I checked my Cable Matters cable with a multimeter and it does not wire pin 20. Microsoft has a page about this problem: https://support.microsoft.com /en-us/kb/2625567 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/1308105 Title: Xfce resets TV mode to NULL when power cycled To manage notifications about this bug go to: https://bugs.launchpad.net/mythbuntu/+bug/1308105/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
