Bug 17985

Summary:	[6dev1] Geforce 7025: bad rendering with Plasma/nvidia304
Product:	Mageia	Reporter:	papoteur <yvesbrungard>
Component:	RPM Packages	Assignee:	KDE maintainers <kde>
Status:	RESOLVED FIXED	QA Contact:
Severity:	major
Priority:	High	CC:	marja11
Version:	Cauldron	Keywords:	6sta1
Target Milestone:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Source RPM:		CVE:
Status comment:
Attachments:	.xsession-errors

Description papoteur 2016-03-13 16:57:03 CET

Description of problem:
After Installing form iso-dev1, only with Plasma, I reboot. After the login, the session starts, but the icons are only zebra. Nothing is recognizable.
When I switch to a console, then return to the graphical session, the screen is OK.
But nothing is responsive. It seems that kwin eats all the processor.
When I disable the Composite option, the screen stay black with the pointer of the mouse.

Comment 1 Marja Van Waes 2016-03-14 09:35:58 CET

if you google for 'plasma5 "Geforce 7025"' there are quite some links.
In one of them (no zebras mentioned there, though) it is suggested to use xrender

CC: (none) => marja11
Assignee: bugsquad => mageia

Comment 2 papoteur 2016-05-08 11:56:20 CEST

Created attachment 7765 [details]
.xsession-errors

Same problem with sta1.
Here is the xsessions-error file when driver is nvidia304.

papoteur 2016-05-08 11:57:03 CEST

Keywords: (none) => 6sta1

Comment 3 papoteur 2016-05-08 13:44:21 CEST

plasma-desktop and plasma-workspace are installed.
After updating today, the symptoms are the same.
LXQt works fine.

Comment 4 Rémi Verschelde 2016-05-10 11:48:44 CEST

That won't solve the bug per se (it should work out of the box), but you can try experimenting with the OpenGL settings in systemsettings, and pick xrender or OpenGL 1 instead of (I suppose) OpenGL 2.

Comment 5 papoteur 2016-05-11 08:59:48 CEST

Hello,
I tried with xrender as Compositer, and YES, it works. 
The option OpenGL 1 is not available, but the option 3.x (don't remember exactly).
Thus, how to set this value by default at boot (for Live media) or installation?

papoteur 2016-05-12 19:39:42 CEST

Priority: Normal => High
Severity: normal => major

Samuel Verschelde 2016-08-25 16:24:52 CEST

Assignee: mageia => kde

Comment 6 papoteur 2016-08-25 18:43:39 CEST

After the installation with 6sta1, I encounter no more problem.
Thus closing.

Status: NEW => RESOLVED
Resolution: (none) => FIXED