[Bug 174489] New: kde screen goes black any time I move the mouse or I press the keyboard

[Jean-Christophe Dubois]

http://bugs.kde.org/show_bug.cgi?id=174489

           Summary: kde screen goes black any time I move the mouse or I
                    press the keyboard
           Product: kde
           Version: unspecified
          Platform: Ubuntu Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: unassigned-bugs at kde.org
        ReportedBy: jcd at tribudubois.net


Version:            (using KDE 4.1.2)
OS:                Linux
Installed from:    Ubuntu Packages

My system was working OK with KDE 3.5 (Kubuntu 8.04). It is not a very
powerfull system but I think it should be good enough compared to the various
netbook out there.

jcd at lancelot:~$ lspci                                                           
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 741/741GX/M741 Host (rev
03)                                                                             
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SiS AGP Port (virtual
PCI-to-PCI bridge)                                                              
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS963 [MuTIOL Media IO]
(rev 25)                                                                        
00:02.1 SMBus: Silicon Integrated Systems [SiS] SiS961/2 SMBus Controller       
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE]
00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] AC'97
Sound Controller (rev a0)
00:03.0 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller
(rev 0f)
00:03.1 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller
(rev 0f)
00:03.2 USB Controller: Silicon Integrated Systems [SiS] USB 2.0 Controller
00:04.0 Ethernet controller: Silicon Integrated Systems [SiS] SiS900 PCI Fast
Ethernet (rev 90)
01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS]
661/741/760PCI/AGP or 662/761Gx PCIE VGA Display Adapter
jcd at lancelot:~$ cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 6
model           : 8
model name      : AMD Duron(tm)
stepping        : 1
cpu MHz         : 1804.443
cache size      : 64 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmovpat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow up
bogomips        : 3608.88
clflush size    : 32
power management: ts

jcd at lancelot:~$

Ever since I upgraded the system to KDE 4.1.3 (kubuntu 8.10) the system is
unusable under KDE. Any time I type something or I move the mouse the sytem
goes black. It will then go back to the "normal" display until I type somthing
again in which case it goes black again. There is no crash the system is
running kind of OK but is is unusable as the display disappear (goes black) any
time I try to interact with the system.

Note that I a getting the same bahavior with the kubuntu live CD so it should
not be something with my KDE desktop configuration.

One additional data point is that the system CPU is not overloaded (top show
the system load around 1 to 5%)

Also KDE applications (kontact, konqueror, ...) are running mostly fine
(without spurious black screen) under another environement like XFCE for
example.

I am typing this report under KDE at the moment and it is very painfull ...

If you need any more data on my system, please ask ...


-- 
Configure bugmail: http://bugs.kde.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.