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Old 10-11-2012, 03:16 AM
"Clay Weber"
 
Default black screen

The black screen is because plasma-desktop, which is what powers the panel, menus, background, etc had crashed or didn't start. Does running the command "plasma-desktop" from the alt-f2 bring every thing back?

Sent from my Droid Charge on Verizon 4G LTE

------Original Message------
From: Errol Sapir <errol@tzora.co.il>
To: "Kubuntu user technical support" <kubuntu-users@lists.ubuntu.com>
Date: Thursday, October 11, 2012 1:37:34 AM GMT+0200
Subject: Re: black screen

Tried that to no avail. I think the problem is one of the settings of
the desktop because if I go into "repair" mode and then go to command
line and type startx, the gui desktop comes up. It isn't "my" desktop,
just an empty plain gui KDE desktop. When login in "normally" the
desktop starts to appear after typing my password and then goes black.
It is though a black cover has been formed over the desktop because all
the programs work with ALT/F2 and the typing the name of the program.
All this time the mouse curser is visible and is movable but clicking
anywhere on the screen does nothing until I use ALT/F2 and then I can
type in the name of any program and click on the list that appears to
operate the program. The mouse and keyboard work perfectly on any
program opened.
There is also no panel visible at any time and if I minimize a program
it disappears "under" the black screen.
Errol

On 10/10/2012 02:22 AM, Basil Chupin wrote:
> On 10/10/12 10:57, Errol Sapir wrote:
>> Thanks for the info utek and Miriam. I tried that but that doesn't
>> seem to be the problem. The plasma-desktop goes black when logging in.
>> Black (with nothing else visible on the screen) seem to have become
>> the default colour, "covering" everything on the old desktop. I have
>> gone into display and changed themes to no avail.
>> As I said I can operate anything from "run", including settings, and
>> basically any program I type in. They all come up as they did before
>> this problem arose.
> [...........]
>
> When logging in, before typing in your password, click on the
> 'spanner' tool and select plasma desktop and then finish logging in.
> There is a quirk which fails to start the plasma desktop when you have
> upgraded KDE but after you do what I just suggested the problem disappears.
>
> BC
>

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Old 10-11-2012, 02:44 PM
Basil Chupin
 
Default black screen

On 11/10/12 10:37, Errol Sapir wrote:
Tried that to no avail. I think the problem is one of the settings of
the desktop because if I go into "repair" mode and then go to command
line and type startx, the gui desktop comes up. It isn't "my" desktop,
just an empty plain gui KDE desktop. When login in "normally" the
desktop starts to appear after typing my password and then goes black.
It is though a black cover has been formed over the desktop because
all the programs work with ALT/F2 and the typing the name of the
program. All this time the mouse curser is visible and is movable but
clicking anywhere on the screen does nothing until I use ALT/F2 and
then I can type in the name of any program and click on the list that
appears to operate the program. The mouse and keyboard work perfectly
on any program opened.
There is also no panel visible at any time and if I minimize a program
it disappears "under" the black screen.

Errol

On 10/10/2012 02:22 AM, Basil Chupin wrote:

On 10/10/12 10:57, Errol Sapir wrote:

Thanks for the info utek and Miriam. I tried that but that doesn't
seem to be the problem. The plasma-desktop goes black when logging in.
Black (with nothing else visible on the screen) seem to have become
the default colour, "covering" everything on the old desktop. I have
gone into display and changed themes to no avail.
As I said I can operate anything from "run", including settings, and
basically any program I type in. They all come up as they did before
this problem arose.

[...........]

When logging in, before typing in your password, click on the
'spanner' tool and select plasma desktop and then finish logging in.
There is a quirk which fails to start the plasma desktop when you have
upgraded KDE but after you do what I just suggested the problem
disappears.


BC


It would be very nice if you did not top-post.....

Then I suggest that you rename /.kde4 directory in your home to, say,
/.kde4-old so that it is recreated when you reboot and login again.


BTW, which video card are you using and do you have the latest driver
for it installed (and I don't mean the nouveau, default, driver if you
have a nVidia card)?


BC

--
Using openSUSE 12.2 x86_64 KDE 4.9.2 & kernel 3.6.1.1 on a system with-
AMD FX 8-core 3.6/4.2GHz processor
16GB PC14900/1866MHz Quad Channel Corsair "Vengeance" RAM
Gigabyte AMD3+ m/board; Gigabyte nVidia GTX550Ti 1GB DDR5 GPU


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Old 10-11-2012, 04:01 PM
Errol Sapir
 
Default black screen

On 10/11/2012 04:44 PM, Basil Chupin wrote:

On 11/10/12 10:37, Errol Sapir wrote:

Tried that to no avail. I think the problem is one of the settings of
the desktop because if I go into "repair" mode and then go to command
line and type startx, the gui desktop comes up. It isn't "my" desktop,
just an empty plain gui KDE desktop. When login in "normally" the
desktop starts to appear after typing my password and then goes black.
It is though a black cover has been formed over the desktop because
all the programs work with ALT/F2 and the typing the name of the
program. All this time the mouse curser is visible and is movable but
clicking anywhere on the screen does nothing until I use ALT/F2 and
then I can type in the name of any program and click on the list that
appears to operate the program. The mouse and keyboard work perfectly
on any program opened.
There is also no panel visible at any time and if I minimize a program
it disappears "under" the black screen.
Errol

On 10/10/2012 02:22 AM, Basil Chupin wrote:

On 10/10/12 10:57, Errol Sapir wrote:

Thanks for the info utek and Miriam. I tried that but that doesn't
seem to be the problem. The plasma-desktop goes black when logging in.
Black (with nothing else visible on the screen) seem to have become
the default colour, "covering" everything on the old desktop. I have
gone into display and changed themes to no avail.
As I said I can operate anything from "run", including settings, and
basically any program I type in. They all come up as they did before
this problem arose.

[...........]

When logging in, before typing in your password, click on the
'spanner' tool and select plasma desktop and then finish logging in.
There is a quirk which fails to start the plasma desktop when you have
upgraded KDE but after you do what I just suggested the problem
disappears.

BC


It would be very nice if you did not top-post.....

Then I suggest that you rename /.kde4 directory in your home to, say,
/.kde4-old so that it is recreated when you reboot and login again.

BTW, which video card are you using and do you have the latest driver
for it installed (and I don't mean the nouveau, default, driver if you
have a nVidia card)?

BC



Sorry about the top posting. I never remember which forums want top and
which want bottom.
I have an external card and I don't know if the drivers are the latest.
I'll look into it. I'll also try the /.KDE-old and report back. Thanks
for the advice.

Errol

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