Re: ibook G4 Status Report

Thu 12 Feb 2004, Benjamin Herrenschmidt wrote:

Ok, you need to use XFree without UseFBDev. This cause some flicker on
your LCD, and then run the enclosed hack which should fix the flicker. Let
me know if that helps. XFree without UseFBDev will also screw up switching
back to console unfortunately, I have a hack for that (remove all the vgaXXX
calls in XFree) locally.

First of all sorry for my lag, i was out for work last two weeks.

I've tried your lcd_hack patch with no FBDev option in XFree,
now the lcd is not flickering anymore;  i've used the OUTPLL(3,0xc)
workaround, because without it the hack is useless.

Now the second screen switch in clone-mode without any problem. The only
trouble is that the output resolution is the same of the embedded lcd,
so the max res that i can use is 1024x768; no matter about the paramters
specified in XF86Config. If it's usefull, i've patched my OF to unlock
the video resolutions as described in some howtos on the net.

Another issue is about the on-the-fly resolution switch: if during the X session
i switch to another resolution the LCD screen start to flickering again; i've to
rerun the lcd_hack to stop the problem.

follow some scratch of my XF86Config:

Section "Device"
    Identifier  "Radeon-1"
    Driver      "radeon"
    ChipID      0x514d
    BusID       "PCI:0:16:0"
    Option      "SWcursor"      "true"
    Option      "AGPMode"       "4"
    Option      "EnablePageFlip"        "On"
    Screen      0
EndSection

Section "Device"
    Identifier  "Radeon-2"
    Driver      "radeon"
    ChipID      0x514d
    BusID       "PCI:0:16:0"
    Option      "SWcursor"      "true"
    Option      "AGPMode"       "4"
    Option      "EnablePageFlip"        "On"
    Screen      1
EndSection


Section "Screen"
    Identifier  "Screen 1"
    Device      "Radeon-1"
    Monitor     "aoc"
    DefaultDepth 16
    Subsection "Display"
	Depth       16
	Modes       "1024x768"
	ViewPort    0 0
    EndSubsection
EndSection

Section "Screen"
    Identifier  "Screen 2"
    Device      "Radeon-2"
    Monitor     "aoc"
    DefaultDepth 16
    Subsection "Display"
	Depth       16
	Modes       "1280x1024"
	ViewPort    0 0
    EndSubsection
EndSection

Section "ServerLayout"
    Screen "Screen 1"

    # Screen "Screen 2"
End Section


if you've readed carefully above, i've to disable the second screen in
ServerLayout; if i turn it on the system start with an 8bits ColorDepth.
I've no idea about this...maybe i've done some mistake.

finally, i'm using a 2.6.1-ben1 with no additional patch or workaround.

i've not tried your suggested hack for the turn back to console problem.
next week i'll find a couple of minutes to patch X and i'll write a
report onto this list.

cheers,
--
(v^v) ? spj:fnml:vrl;
keyID = 0x1D67B4DD;

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

finally, i'm using a 2.6.1-ben1 with no additional patch or workaround.

i've not tried your suggested hack for the turn back to console problem.
next week i'll find a couple of minutes to patch X and i'll write a
report onto this list.

The mode used for cloning the display is picked by the X driver
according to strange rules I don't fully get at this point ;)

Regarding the switch to console, commenting out the various call
to vgaHWxxxx in RADEONSave() & RADEONRestore() may help.

Ben.


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On Sun, 2004-02-22 at 12:18, Costantino Pistagna wrote:

Now the second screen switch in clone-mode without any problem. The only
trouble is that the output resolution is the same of the embedded lcd,
so the max res that i can use is 1024x768; no matter about the paramters
specified in XF86Config.

You need to set up either multiple screens or clone modes to go beyond
that.

If it's usefull, i've patched my OF to unlock the video resolutions as
described in some howtos on the net.

Only Mac OS cares about that, in order to artificially cripple iBooks.

if you've readed carefully above, i've to disable the second screen in
ServerLayout; if i turn it on the system start with an 8bits ColorDepth.
I've no idea about this...maybe i've done some mistake.

Impossible to tell without seeing the server log.


--
Earthling Michel Dänzer      |     Debian (powerpc), X and DRI developer
Libre software enthusiast    |   http://svcs.affero.net/rm.php?r=daenzer


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