Bug 80191

Summary:	Intel ValleyView Gen7 black screen after kernel initialization
Product:	Drivers	Reporter:	Pavlihin Ilya (vistilya)
Component:	Video(DRI - Intel)	Assignee:	Jesse Barnes (jbarnes)
Status:	REJECTED WILL_NOT_FIX
Severity:	normal	CC:	alan, intel-gfx-bugs
Priority:	P3
Hardware:	x86-64
OS:	Linux
Kernel Version:	>3.12.13	Subsystem:
Regression:	No	Bisected commit-id:

Description Pavlihin Ilya 2014-07-14 08:30:04 UTC

Hello.

I have a netbook ASUS X200MA with integrated video ValleyView Gen7.

When i install my Gentoo system and use gentoo-sources from standart repo (3.12.13) my notebook has started, but he's try send video to VGA1 output. When I detach VGA with kernel command line (video=VGA1:d) - all is okay. Video send to standart monitor and autoresize console. Newest kernels after 3.12.13 give me a black screen on each outputs (backlight is on, but no information on screens after kernel init, before start openrc)

I'm try change kernel and command line options in any sequences, search answer in google, but no result.

Attach logs from "blind" system:

dmesg:
http://bpaste.net/show/460311

messages:
http://bpaste.net/show/460312

lspci:
http://bpaste.net/show/460313

Comment 1 Alan 2014-07-29 15:43:14 UTC

Try the latest kernel releases. On various other similar platforms the panels now work.

Comment 2 Pavlihin Ilya 2014-07-31 11:38:57 UTC

I try 3.15.7 and 3.16-rc7. Blackscreen problem is saved.