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Re: X on G4 with ATI Rage 128 Pro and LCD Panel



On Wed, 24 Jan 2001, Michel [iso-8859-1] Dänzer wrote:

> append="video=aty128fb:" works for me with yaboot.
But not for me (sob). I put in my yaboot.conf

image=/vmlinux
        label=debian-aty
        root=/dev/hda10
        read-only
        partition=10
        append="video=aty128fb:mode:1024x768-60"

with and without the "mode:1024x768-60" string. In both cases boot is
ok, but the screen turns blank. I have to login as root and reboot with 
a "video=ofonly" image. Here are interesting kernel messages:

boot with video=ofonly:

Jan 25 11:46:35 mac108 kernel: Using unsupported 1024x768 ATY,Rage128Ps at
94008000, depth=8, pitch=1024
Jan 25 11:46:35 mac108 kernel: Console: switching to colour frame buffer
device 128x48
Jan 25 11:46:35 mac108 kernel: fb0: Open Firmware frame buffer device on
/pci@f0000000/ATY,Rage128Ps@10

booting with video=aty128fb: :

Jan 25 11:44:35 mac108 kernel: aty128fb: detected XCLK=0x36d6, 
ref_div=0x1b
Jan 25 11:44:35 mac108 kernel: aty128fb: Rage128 Pro PF (AGP) [chip rev
0x1] 16M 128-bit SDR SGRAM (1:1)
Jan 25 11:44:35 mac108 kernel: Console: switching to colour frame buffer
device 128x48
Jan 25 11:44:35 mac108 kernel: fb0: ATY Rage128 frame buffer device on
/pci@f0000000/ATY,Rage128Ps@10


I also couldn't get your first suggestion ("current" as mode and depth 8
in XF86Config) to work, the server always deleted all modelines. I tried

Section "Monitor"

    Identifier  "LCD Panel"
    VendorName  "Apple"
    ModelName   "Studio Display"

...

    HorizSync   48.4 
    VertRefresh 60, 75 

EndSection

...

Section "Screen"
    Driver      "FBDev"
    Device      "Linux Frame Buffer Device"
    Monitor     "LCD Panel"
    DefaultColorDepth 8
    SubSection "Display"
        Depth       8
        Modes       "current"
        #Virtual     1280 960
    EndSubSection
EndSection

for the LCD flat panel we have (Apple Studio Display). Apple is thin on
specs in the manual where I find "1024 by 768 at 60 Hz refresh rate" and
two lower resolution modes at 75 Hz refesh which get mapped to 1024x768. 

Oh, and fbset -x (when running with video=ofonly) tells me 

mac108:/home/skluth# fbset -x

Mode "1024x768"
    # D: 100.000 MHz, H: 93.985 kHz, V: 116.318 Hz
    DotClock 100.001
    HTimings 1024 1040 1048 1064
    VTimings 768 784 792 808
    Flags    "-HSync" "-VSync"
EndMode

which has almost twice as much vertical refresh than Apple says? Should I
paste this into XF86Config? Or will I smoke-test the display? 

Cheers, Stefan

---Stefan Kluth---------------Wissenschaftlicher Mitarbeiter-----------
-  MPI fuer Physik         -  phone:  +49 89 32354 468  -      OPAL&  -
-  Foehringer Ring 6       -  fax:    +49 89 32354 305  -      ATLAS  -
---D-80805 Munich, Germany----e-mail: skluth@mppmu.mpg.de--------------




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