Xorg not working on PPC
geoffdown at fastmail.net
Thu Jan 23 13:48:07 PST 2014
On Thu, Jan 23, 2014, at 08:48 PM, Andreas Mohr wrote:
> > Depth: 32-bit Color
> Might want to restrict that to 16-bit, since I'd assume that to be a bit
> taxing given a semi-small 16MB VRAM amount.
Where do I set that please? Are all these options in xorg.conf?
> That said, the lockup / garbled screen might perhaps be caused by AGP
> On x86, AGP support often is provided by the intel-agp.ko module.
> If that module is not available (or perhaps a driver setting is provided
> to disable it),
> then driver operation falls back to PCI-only, which might improve
Is this relevant (I assume you clicked through to the logs)?
[ 308.089] (WW) R128(0): Failed to read PCI ROM!
[ 308.089] (WW) R128(0): Video BIOS not found!
[ 308.089] (II) R128(0): Primary Display == Type 3
[ 308.089] (WW) R128(0): Can't determine panel dimensions, and none
Disabling programming of FP registers.
How do I set up PCI-only? System Profiler doesn't mention PCI in
connection with the Graphics card: there is nothing reported on the PCI
> Also, you should check whether Xorg reports DRI as enabled
> (and if so, try setting it to disabled, since that might be problematic
Is this what you mean?
[ 308.492] (II) R128(0): [DRI] installation complete
That would be
> In general, try disabling as many of the driver options that you can find
> man r128
> , to try to figure out which setting caused such problems.
Can you advise of a minimal config? Otherwise I'm apt to turn off
something that shouldn't be.
> And of course check Xorg.0.log file content for specifics of all the
> problem areas mentioned above, and more.
The specifics may well be there, but it's all Greek to me.
> So far, *not* very specific help, but it might just end up helping anyway
> Andreas Mohr
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