Bug 93096 - [i865] modeset failure, blank backlight screen
Summary: [i865] modeset failure, blank backlight screen
Status: CLOSED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: unspecified
Hardware: x86 (IA32) Linux (All)
: medium normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-11-24 21:51 UTC by Meelis Roos
Modified: 2017-07-24 22:44 UTC (History)
1 user (show)

See Also:
i915 platform: I865G
i915 features:

Attachments
dmesg from 4.2.0 (68.72 KB, text/plain)
2015-11-24 21:51 UTC, Meelis Roos 		no flags Details
dmesg from 4.3.0 (74.11 KB, text/plain)
2015-11-24 21:52 UTC, Meelis Roos 		no flags Details
View All

Description Meelis Roos 2015-11-24 21:51:41 UTC 
Created attachment 120095 [details]
dmesg from 4.2.0

With Linux 4.3.0, I get a blank greyish screen when the i915 driver does it modeset on boot. The system works fine remotely, just no output on console. No X is running, just fbcon in this machine. 4.2.0 worked fine.

Attached are dmesg outputs with drm.debug=0xe from 4.2.0 and 4.3.0.

Bisection is possible but will be slow since I am usually not near the machine.
Comment 1 Meelis Roos 2015-11-24 21:52:24 UTC 
Created attachment 120096 [details]
dmesg from 4.3.0
Comment 2 Meelis Roos 2015-12-03 15:27:21 UTC 
This has been fixed as of 4.4-rc3.

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.