Bug 1228773

Summary:	Hyper-V framebuffer module missing from initramfs
Product:	[Fedora] Fedora	Reporter:	Sitsofe Wheeler <sitsofe>
Component:	dracut	Assignee:	dracut-maint-list
Status:	CLOSED DUPLICATE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	22	CC:	dracut-maint-list, extras-qa, harald, jasowang, jonathan, kys, zbyszek
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:	1192035	Environment:
Last Closed:	2015-06-09 10:47:41 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Sitsofe Wheeler 2015-06-05 16:08:38 UTC

+++ This bug was initially created as a clone of Bug #1192035 +++

Description of problem:
The Hyper-V framebuffer module isn't loaded while we are still in the RAM disk which means text mode is used.

Version-Release number of selected component (if applicable):
dracut-041-10.fc22.1.x86_64

How reproducible:
Reproducible every time.

Steps to Reproduce:
1. Install Fedora 22 on Hyper-V.
2. After choosing the kernel at the grub prompt watch the boot up screen.

Actual results:
Pretty graphic of the Fedora emblem filling with white.

Expected results:
Text bar goes across the bottom and at some stage the screen is resized leave the old black screen at the top left and grey in the newly expanded area. When shutting down this messy screen is kinda of shown but with the emblem overlayed too.

Additional info:
This occurs because the Hyper-V framebuffer driver isn't part of initramfs. It is not picked up with most other drivers because it doesn't seem to use drm_crtc_init like other drivers. Adding
instmods hyperv_fb
to modules.d/50drm/module-setup.sh (as shown on http://paste.fedoraproject.org/184642/43121142/ ) makes resizes the screen early (preventing later mess) and makes the pretty splash occur.

In Fedora 21 this is fixed by dracut-038-39.git20150518.fc21 (see Bug #1192035 for details).

Comment 1 Harald Hoyer 2015-06-09 10:47:41 UTC


*** This bug has been marked as a duplicate of bug 1222512 ***