Re: [Bugme-new] [Bug 10971] New: radeonfb : radeon X800 family support (atombios)

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On Mon, 23 Jun 2008 14:35:21 -0700 (PDT)
bugme-daemon@bugzilla.kernel.org wrote:

http://bugzilla.kernel.org/show_bug.cgi?id=10971

           Summary: radeonfb : radeon X800 family support (atombios)
           Product: Drivers
           Version: 2.5
     KernelVersion: stable branch 2.6.26-rc6
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: Console/Framebuffers
        AssignedTo: jsimmons@infradead.org
        ReportedBy: Jimmy.Jazz@gmx.net


Latest working kernel version:2.6.26
Earliest failing kernel version:
Distribution:
Hardware Environment: Radeon X800 family PCIe videocard
Software Environment:
Problem Description:

Using the actual radeonfb kernel driver with a X800 videocard gives me a black
screen of the death and will crash xorg. Worth, with the vesafb driver the card
is not even working well.

Also, i gathered some patches that were published on the fbdev forum, and
changed few easy things to make the driver understand the monid ddc type of the
videocard and print better kernel messages. I tested the vga ddc and the monid
ddc and both are working well.

The only difficulties are, first i need to deactivate some options in xorg.conf
to be able to switch back and forth to the virtual ttys.

[code]
        Option      "IgnoreEDID" "off" 
        Option      "ReverseDDC" "off"
        Option      "VGAAccess" "off"
[/code]

Second, the driver needs to share the same resolution and color depth as xorg.

The following options are working with the radeonfb framebuffer. I have only
tested them when the radeonfb driver was compiled like an optional module.

options radeonfb mode_option=1680x1050MR-32@60
options radeonfb ignore_edid=0
options radeonfb ignore_devlist=1 force_measure_pll=0 nomodeset=0 noaccel=0

I hope these patches will help radeon X800 owners to have a nice splash screen
on their flat wide screen... but without guaranty. My knowledge in videocard
logic is quite thin :)  

Steps to reproduce:

A post-2.6.26 regression..

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