Bug#433236: Subject: linux-image-2.6.21-2-powerpc: radeonfb broken with Apple Cinema Display, connected via DVI
On Mon, 2007-07-30 at 20:41 +0200, Stephane Louise wrote:
> Bonjour Ben, merci pour le suivit.
>
> Benjamin Herrenschmidt a écrit :
> > Does this happen also without radeonfb and with X alone using the X
> > "radeon" driver ?
>
> Yes, unless I misunderstand you. I tried several options at the yaboot
> prompt (nofb or video=of), and speaking of Xorg, I don't use the
> UseFBDev for X11 since it rarely works with LCD panels (same with the
> Apple 20" and the Samsung 206, most of the valid resolutions don't work
> with UseFBDev).
Just to make sure I understand properly: with video=ofonly and X with
the config below, you still get a black screen ? It looks like the
monitor powers off right ? I saw that with issues with Apple doing
non-kosher things with the DDC line but we had that fixed long ago...
Ben.
> Here are my device and monitor sections of xorg.conf:
> Section "Device"
> Identifier "ATI Technologies, Inc. RV280 [Radeon 9200]"
> Driver "radeon"
> BusID "PCI:0:16:0"
> Option "UseFBDev" "false"
> Option "AGPMode" "4"
> Option "AGPFastWrite" "true"
> Option "ReverseDDC" "true"
> Option "PanelSize" "1680x1050"
> Option "AccelMethod" "XAA"
> Option "AccelDFS" "on"
> Option "EnablePageFlip" "true"
> Option "ColorTiling" "on"
> Option "EnableDepthMoves" "true"
> Option "RenderAccel" "true"
> Option "DRI" "true"
> Option "XAANoOffscreenPixmaps" "true"
> EndSection
>
> Section "Monitor"
> Identifier "Apple Cinema Display 20"
> Option "MonitorLayout" "TMDS,NONE"
> Option "DPMS"
> HorizSync 28-68
> VertRefresh 60
> DisplaySize 434 270
> Option "DPMS"
>
> ModeLine "1680x1050" 119.06 1680 1728 1760 1840 1050 1053 1059
> 1080 +HSync -VSync
> Modeline "1280x800" 67.26 1280 1312 1560 1592 800 817 824 841
> Modeline "1024x640" 51.90 1024 1056 1248 1280 640 653 660 673
> Modeline "800x500" 30.98 800 832 944 976 500 510 515 526
> EndSection
>
> Tell me if I can do something else to help.
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