[Bug 191813] New: kde-4.2.2 breaks freedektop with ATI radeonhd driver

[peter-guenther at gmx.com]

https://bugs.kde.org/show_bug.cgi?id=191813

           Summary: kde-4.2.2 breaks freedektop with ATI radeonhd driver
           Product: kde
           Version: 4.2.2
          Platform: SuSE RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: unassigned-bugs at kde.org
        ReportedBy: peter-guenther at gmx.com


Version:            (using KDE 4.2.2)
OS:                Linux
Installed from:    SuSE RPMs

Story in short:
- installed opensuse-11.1 (defaults to kde-4.1.3). All ok.
- used opensuse's one-click-install to upgrade to kde-4.2.2 because of severe
instabilities in 4.1.3
- never got the desktop working again, xserver crashes.
- repeated everything, working fine with 4.1.3, never worked again with 4.2.2
- assumed bug in either radeonhd-driver or xserver and opened bug in
bugs.freedesktop.org, bug no.21423.

- got good support from the maintainers there, here is the latest anwer from
mhopf at suse.de:

--- Comment #13 from Matthias Hopf <mhopf at suse.de>  2009-05-06 03:04:33 PST ---
As I assumed - this is presumably not a radeonhd issue, but a combination of
KDE trying to use composite (probably using OpenGL), the logic of detecting
whether 3D acceleration is available being broken (as Mesa now returns Direct
Rendering: yes even for software rasterization), and the
GLX_EXT_texture_from_pixmap being broken in the software rasterizer case.

An easy workaround would be - AFAIR - to disable the Composite extension in the
Xserver: Add
  Option "Composite" "off"
in the "Extensions" section of your xorg.conf. If that doesn't help a KDE guru
should help you how to switch of compositing by editing a KDE config file.


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- the workaround did not change anything, so i ask for help here now.
- for the full story, please refer to
bugs.freedesktop.org bug# 21423.
- architecture is x86-64, engine is intel quad-core.

- kept installation current by daily issuing 'sudo zypper update'. This
includes KDE-4.2.2 updates.

- same installation process worked and still works fine on a VAJO notebook with
Intel graphics. KDE-4.2.2 runs fine there with some minor but not severe
problems.

Thanks for all and any help.

I will be out of town starting tomorrow morning till May-18th. During this
time, i will gladly answer questions but i am unable to checkout things in this
period.
thx, Peter

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