** Project changed: qtmir => qtmir (Ubuntu)
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https://bugs.launchpad.net/bugs/1638929
Title:
after disabling a display, enabling makes screens go black
** Tags added: black-screen
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https://bugs.launchpad.net/bugs/1638929
Title:
after disabling a display, enabling makes screens go black
Status in Canonical
@jgdx
Can you make sure that silo 2140 is up to date so this can be tested again?
thanks
** Also affects: ubuntu-system-settings (Ubuntu)
Importance: Undecided
Status: New
** Changed in: ubuntu-system-settings (Ubuntu)
Assignee: (unassigned) => Jonas G. Drange (jonas-drange)
**
Thanks. The logs show Mir knows about the display getting re-enabled and
the backlight coming back on is the only part that Mir is responsible
for. I think the relevant aspects of Mir are working correctly.
** Changed in: mir
Status: Incomplete => Invalid
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You received this bug
> Is your backlight coming back on? If not then that part is a Mir bug.
The backlights are coming back online.
** Description changed:
Reproduce:
turn off then turn on some display (output.used = false then output.used =
true)
What happens:
Turning off works fine, turning it back on
(Got my bugs mixed up, I didn't actually mention silo 2140. :))
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https://bugs.launchpad.net/bugs/1638929
Title:
after disabling a display, enabling makes
Silo 2140 as mentioned will give you a way to reproduce this. I am
currently unable to since I've lost the option to log into a unity8 desktop
session.
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Yeah the unity8 log makes me suspect qtmir, it deals with disabling the
display ok, but enabling it doesn't yield 2 screens again
** Also affects: qtmir
Importance: Undecided
Status: New
** Changed in: qtmir
Status: New => Confirmed
** Changed in: qtmir
Importance: Undecided
QtMir/Unity8 is designed to deal with spanning displays - it is actually
cloned displays it needs work to support!
@jonas Could you give us a means to test this behaviour?
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Is your backlight coming back on? If not then that part is a Mir bug.
** Project changed: mir => unity8 (Ubuntu)
** Also affects: lightdm
Importance: Undecided
Status: New
** Also affects: lightdm (Ubuntu)
Importance: Undecided
Status: New
** Also affects:
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: unity8 (Ubuntu)
Status: New => Confirmed
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