[Bug 29384] New: Slow switch between TTY1-TTY6 with /dev/fb0 or X11 involved

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=29384

           Summary: Slow switch between TTY1-TTY6 with /dev/fb0 or X11
                    involved
           Product: DRI
           Version: unspecified
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: peterle at hottemptation.org


Created an attachment (id=37543)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=37543)
lspci of acer timelinex 3820tg

Hello I made maybe a mistake and don't opened a new bug. But for additional
information the old bug could be helpful, see here:
https://bugs.freedesktop.org/show_bug.cgi?id=27744

Hardware: Radeon 5650
Kernel: 2.6.34
Status: everything is running fine

Hardware: Radeon 5650
Kernel: 2.6.35-rc6 and 2.6.35
Status: everything runs but with glitches

I have just use the TTY1-6 and switch between them everything is still okay
with "2.6.35" but if the switch between TTY which are running applications with
access to /dev/fb0 I got delays around 3 or 4 seconds when I switch away from
TTY which is running fbida (framebuffer-image-viewer) or mplayer.
I case of mplayer this could lead to an uncontrolable system, only reaching the
end of the movie gives here control back (help: MagicSysR, blind reboot or
blind killing of mplayer).

Switching away from TTY7 with running X11 leads also to an delay around 3 or 4
seconds very similar to the delay which occurs while running fbida.
I think a connection between the "stuck atombios" problem and this problem
could existed, but I am not sure. This could also a own dedicated problem, so I
opened this bug.

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