[Bug 100356] New: [DSI] Panel detection fail
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Thu Mar 23 14:59:05 UTC 2017
https://bugs.freedesktop.org/show_bug.cgi?id=100356
Bug ID: 100356
Summary: [DSI] Panel detection fail
Product: DRI
Version: DRI git
Hardware: x86-64 (AMD64)
OS: All
Status: NEW
Severity: major
Priority: medium
Component: DRM/Intel
Assignee: intel-gfx-bugs at lists.freedesktop.org
Reporter: b7086163 at gmail.com
QA Contact: intel-gfx-bugs at lists.freedesktop.org
CC: intel-gfx-bugs at lists.freedesktop.org
Created attachment 130397
--> https://bugs.freedesktop.org/attachment.cgi?id=130397&action=edit
4.11 r3 drm-tip WITH Dirty Hack
No screen image on display. Just black with backlight. Fastboot=1 doesn't
working. Get fastboot to work by dirty hack:
[
In intel_display.c, I changed the line
FROM
if (i915.fastboot && intel_pipe_config_compare(dev,
to_intel_crtc_state(crtc->state), pipe_config, true)) {
TO
if (i915.fastboot) {
]
Now display is working with fastboot=1, but XRANDR detects it as a UNKNOWN. If
try to change display orientation, I will get black screen with backlight.
If I use kernel without dirty hack, it detects DSI panel normally, but it's
black.
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