Public bug reported:
After upgrade to linux-image-3.19.0-22-generic on Acer Aspire
5250/HMA51-BZ there is nothing displayed after Grub. Playing with
(Ctrl-)Alt-F1, F2, ..., F7, F8... doesn't have any visible effect - so
neither VT nor X is visible. Removing "quiet splash" from kernel
arguments als
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 3.19.0-2
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 sc
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
I did the full reverse commit bisect and found out the commit that fixes
the issue is:
commit 0434848e444b31ea862743b720585c127b8114c2
Author: Adam Lee
Date: Wed Jan 28 15:30:27 2015 -0500
Bluetooth: ath3k: workaround the compatibility issue with xHCI
controller
I have no idea why this BT
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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