[Bug 99784] AMD 7470m When VGA plugged into laptop, only one monitor working at a time

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99784

--- Comment #11 from lazanet96 at gmail.com ---
Problem persists with 4.11rc7 kernel. Should I try updating some other package?

Also, I noticed that problem starts before X is active (at grub/systemd/ubuntu
splash logo). With fglrx only internal monitor would display image at that time
- until lightdm and X start (when all three monitors would turn on). Using
radeon drivers/drm however, external monitors would display mirrored systemd
log/splash screen and internal monitor is off right after grub menu.

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