Bug 1543881

Summary:	Propose to always have 'color-depth' in vv file for 16bits color depth capable VMs
Product:	[oVirt] ovirt-engine	Reporter:	Radek Duda <rduda>
Component:	Frontend.WebAdmin	Assignee:	bugs <bugs>
Status:	CLOSED WONTFIX	QA Contact:	meital avital <mavital>
Severity:	medium	Docs Contact:
Priority:	low
Version:	4.2.1.4	CC:	bugs, michal.skrivanek, mtessun, rduda
Target Milestone:	---	Flags:	sbonazzo: ovirt-4.3-
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-11-14 11:25:43 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	Virt	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1543538
Bug Blocks:	1350853

Description Radek Duda 2018-02-09 13:24:42 UTC

Description of problem:

There is a bug in spice: when no color-depth is specified in vv file, after resize of remote-viewer window, color-depth automatically goes to 32 bits (see https://bugzilla.redhat.com/show_bug.cgi?id=1543538). 

After this behaviour will be changed, there arises a problem:
When user unchecks 'Enable Wan Options' dialog in 'RHV Admin Portal'->'Console Options', the color depth will not return to 32 bits.

So I propose to always have color-depth parameter in vv file for vms, which are capable to have 16 bit color depth.

Version-Release number of selected component (if applicable):
rhv4.2.1.6-0.1.el7
RHV-toolsSetup_4.2_2.iso

Comment 1 Michal Skrivanek 2018-02-10 07:16:30 UTC

Why is “wan options” not enough?h

Comment 2 Radek Duda 2018-02-12 10:30:14 UTC

(In reply to Michal Skrivanek from comment #1)
> Why is “wan options” not enough?h

I do not know what you exactly have on your mind. There is no “wan options” in vv-file. If you check 'Enable WAN Options', then two lines are added to the vv-file:

..
color-depth=16                                         
disable-effects= 
..

and color depth of Win7 guest change to 16 bits. But if you then uncheck "WAN Options" check-box, options listed above are not added to vv file - so color-depth of guest is not enhanced to 32 bits and stays on 16. And this is a problem.

Now undone "WAN Options" (i.e. return to 32 bits) is (partly) functional thanks to https://bugzilla.redhat.com/show_bug.cgi?id=1543538 - color depth can be returned to 32 bits by resizing remote-viewer's window (of guest) - this is certainly not a proper behaviour. 

After https://bugzilla.redhat.com/show_bug.cgi?id=1543538 will be resolved, user cannot return to 32 bits color depth by unchecking 'Enable WAN Options' check-box at all. If you pass no 'color-depth' parameter to remote-viewer, color depth remains intact. From man-pages of remote-viewer:
..
       "color-depth" (integer)
           Set the color depth of the guest display (16 or 32).
..

So I propose to always have 'color-depth' in vv-file for guest OS which is capable of transition between 16 and 32 color-depth.

Comment 3 Ryan Barry 2018-11-14 11:25:43 UTC

This will not make it in a reasonable time. Please re-open if you still feel this should be fixed