** Changed in: linux (Ubuntu)
Status: Triaged = Fix Released
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Title:
eDP laptop screen does not come up until a suspend/resume cycle
** Changed in: linux
Status: Incomplete = Fix Released
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https://bugs.launchpad.net/bugs/1070978
Title:
eDP laptop screen does not come up until a suspend/resume cycle
happens.
The upstream bug report hasn't imported the new comments yet, but they
found this was related to
https://bugzilla.kernel.org/show_bug.cgi?id=47641 also so it broke
dithering on a HP EliteBook 2540p. Intel has reverted this commit with
http://cgit.freedesktop.org/~danvet/drm-
Seeing similar this on Dell laptops in bug #1077064
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Title:
eDP laptop screen does not come up until a suspend/resume cycle
happens.
To
** Changed in: linux
Status: Confirmed = Incomplete
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Title:
eDP laptop screen does not come up until a suspend/resume cycle
happens.
This is fixed in the 3.7 series after the modesetting rework.
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Title:
eDP laptop screen does not come up until a suspend/resume cycle
happens.
** Description changed:
Starting with the precise 3.2.0-32 kernel update, this laptop's eDP
screen refuses to come up until the lid is closed and opened again
triggering a suspend/resume cycle. I bisected this down to
http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-
** Bug watch added: freedesktop.org Bugzilla #56401
https://bugs.freedesktop.org/show_bug.cgi?id=56401
** Also affects: linux via
https://bugs.freedesktop.org/show_bug.cgi?id=56401
Importance: Unknown
Status: Unknown
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Launchpad has imported 3 comments from the remote bug at
https://bugs.freedesktop.org/show_bug.cgi?id=56401.
If you reply to an imported comment from within Launchpad, your comment
will be sent to the remote bug automatically. Read more about
Launchpad's inter-bugtracker facilities at
** Attachment added: lspci-video.txt
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1070978/+attachment/3412206/+files/lspci-video.txt
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** Attachment added: intel_reg_dumper (working)
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1070978/+attachment/3412207/+files/intel-reg-dumper-3.2.0-31.txt
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** Attachment added: intel_reg_dumper (broken)
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1070978/+attachment/3412208/+files/intel-reg-dumper-3.2.0-32.txt
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Kernel with the revert commit that was used for testing.
http://kernel.ubuntu.com/~sarvatt/lp1070978/
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Title:
eDP laptop screen does not come
** Attachment added: dmesg-3.2.0-32.txt
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1070978/+attachment/3412210/+files/dmesg-3.2.0-32.txt
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** Changed in: linux (Ubuntu)
Status: New = Confirmed
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Title:
eDP laptop screen does not come up until a suspend/resume cycle
happens.
** Tags added: blocks-hwcert-enablement
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Title:
eDP laptop screen does not come up until a suspend/resume cycle
happens.
To manage
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
** Changed in: linux (Ubuntu)
Status: Confirmed = Triaged
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Title:
eDP
This bug affects quantal as well, 3.5.0-18 has the same symptom, and
reverting the above commit from it (which was introduced in the 3.5.3
stable update) also fixes this specific machine.
** Tags added: quantal
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