[Bug 27355] New: [R300] Xorg freezes if EXANoComposite is disabled

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=27355

           Summary: [R300] Xorg freezes if EXANoComposite is disabled
           Product: xorg
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: SpOeK at DistroBit.Net
         QAContact: xorg-team at lists.x.org


Created an attachment (id=34518)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=34518)
dmesg output

Enabling EXA leads my system to a complete freeze. Initially, the login screen
shows the fonts corrupted and, when I've logged in successfully, the system
freezes showing a corrupted desktop (fonts and icons). Even the SysReq combo
doesn't work.

I've tried the next:
With "BusType" "PCI" I get "(WW) RADEON(0): Option "BusType" is not used".
Options "EXANoUploadToScreen" and "EXANoDownloadFromScreen" are useless, the
freeze continues.
Option "EXANoComposite" gives me a working system but, in exchange, it seems to
make X a very cpu hungry process.

I'm trying to use KMS. My GPU is an "ATI R300 AD [Radeon 9500 Pro]". I'm on a
Gentoo box using the git version of the graphics driver stack through the x11
overlay and, also, the kernel git version 2.6.33-rc8.

I can attach my .config if you wish but these are the related parameters to
radeon in it:
CONFIG_DRM_RADEON=m
CONFIG_DRM_RADEON_KMS=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FB=y
# CONFIG_FB_RADEON is not set

My last build from git (graphics drivers stack) was in March 5th but I can
catch up if necessary, kernel included.

Please, feel free to ask for more information or if you want me to try a patch.

P.S.: I thought that my bug was #23660 and I added my data to it but I've been
told that by using KMS my problem is not related.


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