3.19 EOL, please feel free to open a new bug is you're still seeing this
issue.
** Changed in: linux (Ubuntu)
Status: Triaged => Won't Fix
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Just to clarify my last comment: I mention backlight, but it's not
backlight, as described before. It's simply black display, but backlight
is on.
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** Tags removed: needs-reverse-bisect
** Tags added: reverse-bisect-done
** Changed in: linux (Ubuntu)
Status: Confirmed = Triaged
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I did the full reverse commit bisect and found out the commit that fixes
the issue is:
commit 0434848e444b31ea862743b720585c127b8114c2
Author: Adam Lee adam@canonical.com
Date: Wed Jan 28 15:30:27 2015 -0500
Bluetooth: ath3k: workaround the compatibility issue with xHCI
controller
I
zub, the next step is to fully reverse commit bisect from kernel 3.19 to
4.2-rc4 in order to identify the last bad commit, followed immediately
by the first good one. Once this commit has been identified, then it may
be reviewed as a candidate for backporting into your release. Could you
please do
I tested with 4.2.0-040200rc4-generic #201507271251 (linux-
image-4.2.0-040200rc4-generic_4.2.0-040200rc4.201507271251_amd64.deb)
and the issue is fixed. Display works again.
I could dig into this further to see which version fixed it, but I
assume this is not important as the fix will eventually
zub, could you please test the latest upstream kernel available from the
very top line at the top of the page (the release names are irrelevant
for testing, and please do not test the daily folder) following
https://wiki.ubuntu.com/Kernel/MainlineBuilds ? It will allow additional
upstream
** Tags added: kernel-da-key regression-update
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https://bugs.launchpad.net/bugs/1472794
Title:
[Acer Aspire 5250] Black screen after upgrade to 3.19.0-22-generic
Status
Thank you for the advice, Christopher.
I updated the BIOS to v1.08. When I run sudo dmidecode -s bios-version
sudo dmidecode -s bios-release-date I get:
V1.08
09/26/2012
Unfortunately the issue still persists and I don't observe any change.
When I power up the laptop:
1) the acer splash
zub, thank you for reporting this and helping make Ubuntu better.
As per http://us.acer.com/ac/en/US/content/drivers an update to your
computer's buggy and outdated BIOS is available (1.08). If you update to
this following https://help.ubuntu.com/community/BIOSUpdate does it
change anything?
If
I can boot OK when I add nomodeset kernel argument, so it's KMS.
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https://bugs.launchpad.net/bugs/1472794
Title:
[Acer Aspire 5250] Black screen after upgrade to
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