[Bug 169615] New: kde4 GUI very unresponsive and slow (scrolling, resizing) with "ATI Radeon VE"

[Volker]

http://bugs.kde.org/show_bug.cgi?id=169615

           Summary: kde4 GUI very unresponsive and slow (scrolling,
                    resizing) with "ATI Radeon VE"
           Product: kde
           Version: unspecified
          Platform: Compiled Sources
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: unassigned-bugs at kde.org
        ReportedBy: folkyvolk at gmx.de


Version:            (using Devel)
OS:                Linux
Installed from:    Compiled sources

All KDE-4 Applications are very unresponsive. For example delayed/unsmooth
scrolling in every application (dolphin, konqueror, gwenview,..), or slow
resizing (you see the inner components resize one after another), or dragging a
window or a widget.

In kde-3 I have no such problems. All programms are very fast and smooth.

My graphics card:

 hwinfo --gfxcard
10: PCI(AGP) 100.0: 0300 VGA compatible controller (VGA)
  [Created at pci.310]
  UDI: /org/freedesktop/Hal/devices/pci_1002_5159
  Unique ID: VCu0.sn2J+lxOveC
  Parent ID: vSkL.s4zPh4a_106
  SysFS ID: /devices/pci0000:00/0000:00:01.0/0000:01:00.0
  SysFS BusID: 0000:01:00.0
  Hardware Class: graphics card
  Model: "ATI Radeon VE"
  Vendor: pci 0x1002 "ATI Technologies Inc"
  Device: pci 0x5159 "Radeon VE"
  SubVendor: pci 0x16f3 "Jetway Information Co., Ltd."
  SubDevice: pci 0x5159
  Memory Range: 0xc0000000-0xc7ffffff (rw,prefetchable)
  I/O Ports: 0xa800-0xa8ff (rw)
  Memory Range: 0xcfef0000-0xcfefffff (rw,non-prefetchable)
  Memory Range: 0xcfec0000-0xcfedffff (ro,prefetchable,disabled)
  IRQ: 5 (313336 events)
  I/O Ports: 0x3c0-0x3df (rw)
  Module Alias: "pci:v00001002d00005159sv000016F3sd00005159bc03sc00i00"
  Driver Info #0:
    XFree86 v4 Server Module: radeon
  Driver Info #1:
    XFree86 v4 Server Module: radeon
    3D Support: yes
    Color Depths: 16
    Extensions: dri
    Options:
  Config Status: cfg=no, avail=yes, need=no, active=unknown
  Attached to: #23 (PCI bridge)


I would like to know, if other people with the same graphics card experience
the same. If someone needs more info I will try to help.

I also search for other related problems and found bug 152661:
I also ran glxinfo in a kde3-session, and then in a kde4-session. And "direct
rendering: Yes" for kde3 and "direct rendering: No" for kde4.

And Bug 148628: the same graphics card seems to be used.


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