[Bug 42852] New: radeon driver (also ati driver) works only once.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=42852

             Bug #: 42852
           Summary: radeon driver (also ati driver) works only once.
    Classification: Unclassified
           Product: xorg
           Version: 7.5 (2009.10)
          Platform: x86-64 (AMD64)
        OS/Version: FreeBSD
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: lenzi.sergio at gmail.com
         QAContact: xorg-team at lists.x.org


I have a new notebook AMD vision with radeon 6250HD graphics.
The operating system is FreeBSD 8.2 64bits
When I turn the machine on, everything works, I can enter the desktop (gdm
2.29, or 2.30) the resolution is 1366x768 24bits. the screen is correct, no
problems at all, the system does not recognize agp and dri is not enable, so I
do not have any 3D accel, no 2D accell  (I do not need it, as I only play some
media: totam, avidemux, openshot...).
The problem shows when I log off from my account, 

1) the screen resets to black, and when gdm tries to show screen again,
the screen show half shifted to the right, (the cursor is on the right border
of
the screen and is located at the middle of the logical screen. when I move the
mouse to the right, the cursor jumps to the left corner of the lcd panel...
2) another init from gdm, the screen turns black
3) another reset, the screen flickers to blue....
4) several resets afer, the screen show correct gdm login... and everything
works...
5) another logout, the system goes back to (2).

Seems that the Xserver (7.5.1) and/or the driver (ati,radeon) is not resetting
the chip to the power on state.. so it point to the wrong screen memory
(shifted by half)... several resets, later, the screen memory goes back to the
power on address, and things work again..

Solution: seems that the ati, and so radeon driver is not resetting the chip to
the original power on state...

Can someone points me to the correct initialization logic for the radeon 6250HD
chip???

Any help is very wellcome....


SErgio

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