KDE 4.4, top panel and black area

Thu Mar 18 15:48:29 UTC 2010

On Wednesday 17 March 2010 04:19:51 am Laurent Humblet wrote:
> Hi,
> 
> Since I have upgraded to KDE 4.4, I'm getting the following error (see
> snpashot attached): My top panel render some black area as background
> for the panel in a strange manner: the top right section of the panel is
> black and but when you change the height or the width of the panel, the
> background seems to refresh and renders the top grey area again.  If you
> come back to the original size, the black area appears again.
> 
> This is all not too much annoying until you reboot and then the problem
> I seemed to have fixed is back.
> 
> So here is what I've been doing everyday for the last few weeks:
> 
> - black background appears at boot time (size 0)
> - change the size of the navigation (let's say two pixels more for the
> height of the panel) (size 1)
> - background is normal again
> - reboot (or shutdown end of the day, restart the next morning)
> - new resized background (size 1) is black (and so is size 0)
> - change the size of the navigation (size 2)
> - background is normal again
> - reboot
> - new resized background (size 2) is black (and so is size 0 and size 1)
> 
> So it seems that the panel background image get resampled every time I
> resize it to a normal background but then that background gets black for
> some reason when I reboot.
> 
> I think that those resized backgrounds are stored somewhere on my
> computer and their saving system might be corrupted and save only a
> black version of the image.  The current 'non-black' screenshot is in
> the computer's RAM while the computer is running so it's not black until
> it's being saved onto the computer and re-loaded at the next reboot and
> so loaded as black as it's been saved as black (or so I believe).
> 
> See the following attached screenshots for more info :
> 
> 	- kde_4_4_top_black.png
> 	- kde_4_4_top_resized.png
> 
> Please let me know if there is a fix for this, I'm running out of panel
> size options, my top panel now has a black area for almost all different
> possible panel sizes.
> 
> Cheers,
> Laurent
> 
> kubuntu-devel-request at lists.ubuntu.com wrote:
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> > Today's Topics:
> >    1. plymouth and nouveau (Cedric Brandenbourger)
> >    2. Re: plymouth and nouveau (Yuriy Kozlov)
> >    3. Re: plymouth and nouveau (Cedric Brandenbourger)
> >    4. Re: plymouth and nouveau (Jonathan Thomas)
> >    5. Re: plymouth and nouveau (Goh Lip)
> > 
> > ----------------------------------------------------------------------
> > 
> > Message: 1
> > Date: Sun, 14 Mar 2010 21:18:06 +0100
> > From: Cedric Brandenbourger <branc426 at gmail.com>
> > Subject: plymouth and nouveau
> > To: Kubuntu Developer Discussion <kubuntu-devel at lists.ubuntu.com>
> > Message-ID: <4B9D447E.4050805 at gmail.com>
> > Content-Type: text/plain; charset=UTF-8; format=flowed
> > 
> > Hi,
> > 
> > Just got a problem after upgrading to these latest packages.
> > While using the nouveau driver and plymouth, the system freezes at boot.
> > After removing plymouth in the recovery mode, the problem disappeard.
> > When using the nvidia with plymouth, i didn't get this issue.
> > Does somebody also encountered this issue?
> > 
> > C?dric
> > 
> > 
> > 
> > ------------------------------
> > 
> > Message: 2
> > Date: Sun, 14 Mar 2010 16:31:22 -0400
> > From: Yuriy Kozlov <yuriy.kozlov at gmail.com>
> > Subject: Re: plymouth and nouveau
> > To: Kubuntu Developer Discussion <kubuntu-devel at lists.ubuntu.com>
> > 
> > Message-ID:
> > 	<714626161003141331g3b7a7730o5d8b9042b5f64167 at mail.gmail.com>
> > 
> > Content-Type: text/plain; charset=UTF-8
> > 
> > Define "freezes".
> > 
> > I think I have the same issue with radeon:
> > https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/538524
> > 
> > Try adding nomodeset to the kernel boot parameters in grub.
> > 
> > ~ Yuriy
> > 
> > On Sun, Mar 14, 2010 at 4:18 PM, Cedric Brandenbourger
> > 
> > <branc426 at gmail.com> wrote:
> >> Hi,
> >> 
> >> Just got a problem after upgrading to these latest packages.
> >> While using the nouveau driver and plymouth, the system freezes at boot.
> >> After removing plymouth in the recovery mode, the problem disappeard.
> >> When using the nvidia with plymouth, i didn't get this issue.
> >> Does somebody also encountered this issue?
> >> 
> >> C?dric
> >> 
> >> --
> >> kubuntu-devel mailing list
> >> kubuntu-devel at lists.ubuntu.com
> >> Modify settings or unsubscribe at:
> >> https://lists.ubuntu.com/mailman/listinfo/kubuntu-devel
> > 
> > ------------------------------
> > 
> > Message: 3
> > Date: Sun, 14 Mar 2010 21:41:43 +0100
> > From: Cedric Brandenbourger <branc426 at gmail.com>
> > Subject: Re: plymouth and nouveau
> > To: Kubuntu Developer Discussion <kubuntu-devel at lists.ubuntu.com>
> > Message-ID: <4B9D4A07.6050100 at gmail.com>
> > Content-Type: text/plain; charset=UTF-8; format=flowed
> > 
> > Yes, its exactly the same problem!
> > 
> > C?dric
> > 
> >> Define "freezes".
> >> 
> >> I think I have the same issue with radeon:
> >> https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/538524
> >> 
> >> Try adding nomodeset to the kernel boot parameters in grub.
> >> 
> >> ~ Yuriy
> >> 
> >> On Sun, Mar 14, 2010 at 4:18 PM, Cedric Brandenbourger
> >> 
> >> <branc426 at gmail.com>  wrote:
> >>> Hi,
> >>> 
> >>> Just got a problem after upgrading to these latest packages.
> >>> While using the nouveau driver and plymouth, the system freezes at
> >>> boot. After removing plymouth in the recovery mode, the problem
> >>> disappeard. When using the nvidia with plymouth, i didn't get this
> >>> issue.
> >>> Does somebody also encountered this issue?
> >>> 
> >>> C?dric
> >>> 
> >>> --
> >>> kubuntu-devel mailing list
> >>> kubuntu-devel at lists.ubuntu.com
> >>> Modify settings or unsubscribe at:
> >>> https://lists.ubuntu.com/mailman/listinfo/kubuntu-devel
> > 
> > ------------------------------
> > 
> > Message: 4
> > Date: Sun, 14 Mar 2010 17:46:23 -0400
> > From: Jonathan Thomas <echidnaman at gmail.com>
> > Subject: Re: plymouth and nouveau
> > To: Kubuntu Developer Discussion <kubuntu-devel at lists.ubuntu.com>
> > Message-ID: <201003141746.24053.echidnaman at gmail.com>
> > Content-Type: Text/Plain;  charset="utf-8"
> > 
> > On Sun 14 Mar 2010 04:31:22 pm Yuriy Kozlov wrote:
> >> Define "freezes".
> >> 
> >> I think I have the same issue with radeon:
> >> https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/538524
> > 
> > Meh, same crap here. Looks like the latest freeze-breaking upload
> > broke plymouth with Kubuntu. :/ I've not tested yet, but I have a
> > pretty good hunch that this bug will make beta isos unusable.
> > 
> >> Try adding nomodeset to the kernel boot parameters in grub.
> > 
> > Removing the splash paramater here will also do the trick,
> > hopefully.
> > 
> >> ~ Yuriy
> > 
> > ------------------------------
> > 
> > Message: 5
> > Date: Mon, 15 Mar 2010 17:54:02 +0800
> > From: Goh Lip <g.lip at gmx.com>
> > Subject: Re: plymouth and nouveau
> > To: kubuntu-devel at lists.ubuntu.com
> > Message-ID: <hnl03t$1jg$1 at dough.gmane.org>
> > Content-Type: text/plain; charset="UTF-8"
> > 
> > Cedric Brandenbourger wrote:
> >> Yes, its exactly the same problem!
> >> 
> >> C?dric
> >> 
> >>> Define "freezes".
> >>> 
> >>> I think I have the same issue with radeon:
> >>> https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/538524
> >>> 
> >>> Try adding nomodeset to the kernel boot parameters in grub.
> >>> 
> >>> ~ Yuriy
> >>> 
> >>> On Sun, Mar 14, 2010 at 4:18 PM, Cedric Brandenbourger
> >>> 
> >>> <branc426 at gmail.com>  wrote:
> >>>> Hi,
> >>>> 
> >>>> Just got a problem after upgrading to these latest packages.
> >>>> While using the nouveau driver and plymouth, the system freezes at
> >>>> boot. After removing plymouth in the recovery mode, the problem
> >>>> disappeard. When using the nvidia with plymouth, i didn't get this
> >>>> issue. Does somebody also encountered this issue?
> > 
> > I hope I am not intruding, I am not a developer, just a user.
> > I came across this message while googling for an answer.
> > I have same problem and I filed a bug report,
> > https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
> > nouveau/+bug/537853
> > 
> > I added back xserver-xorg-video-nouveau (after removing to solve this
> > issue) to try out after some upgrades. Still left unbootable, I then
> > removed plymouth to test, booted okay with plymouth removed. I am on kde
> > 4.4.1
> > 
> > Hope this information helps in some way.
> > 
> > Thanks - regards - Goh Lip
> > 
> > 
> > 
> > 
> > 
> > ------------------------------

I got rid of that panel and created a new one, black spot gone.

-- 
Alan

"The probability that we may fail in the struggle ought not to deter us from 
the support of a cause we believe to be just."
Abraham Lincoln