Re: Video acceleration on IMSTT with bk (and Ben's) 2.4.7-pre6 kernel

Re: Video acceleration on IMSTT with bk (and Ben's) 2.4.7-pre6 kernel

[Iain Sandoe]

On  Fri, Jul 20, 2001, Hollis Blanchard wrote:
> On Fri, Jul 20, 2001 at 11:49:30AM +0100, Iain Sandoe wrote:
>>
>> > Other symptom is that the splash screen #cpus penguin is missing it's
>> > background.
>>
>> this symptom remains (as does missing graphics on the redhat logo etc. on
>> the KDE2 login splash screen).
>
> This symptom is because the penguin logo changed recently.

Ah...

> However, missing graphics in X sound like either misconfiguration or a bug.

well, it's been there ever since I got IMSTT acceleration working (Xpmac) -
the setup, otherwise, is the same as on my other machines (atyfb).

**Only** seems to happen on the KDE splash/login screen (otherwise we seem
to be OK).  Haven't tried other desktops/things that write directly to the
root window (which, I guess, is the difference).

When the system is first brought up the RedHat logo is all black ... as is
the other icon (the login button)...  when you subsequently log out of X
these two items are filled with colour-noise.

I've a feeling it might be a known bug - but can't find a reference to the
mail describing it.  It's not a major problem - just slightly naff-looking.

ciao,
Iain.

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Re: Video acceleration on IMSTT with bk (and Ben's) 2.4.7-pre6 kernel

[Iain Sandoe]

I wrote:
>> I just compiled 2.4.7pre6 from Ben's tree, and another one from bk, with
>> the same results. It compiled without any problems, but I can't have
>> accelerated video. I use "video=imsttfb:vmode:17,cmode:16 video=ofonly"
>> as kernel args to have a working unaccelerated video. Without ofonly, I
>> get some blue dots forming a very distortioned screen of what should be
>> there (linux logo and kernel verbosity). Without the imsttfb part, it
>> won't work after the initial boot screen: it stops after
> [snip]
>
> BK 2.4.7-pre6:
>
> OK.  It comes up for me 9600/233 with video acceleration and runs "single".
>
> However, it won't start the X-server the error is something like:
>
>  _X11TransConnectUNIX??? errno = 111

This is because I was being a dumb-bunny ...

and had forgotten that I no longer use Xpmac compat on my build system (but
still use Xpmac on the IMSTT -- anyone know if XF-4.1 is OK on IMSTT?)

It's all OK now (as of a build of 2.4.7-pre8 this morning).

> Other symptom is that the splash screen #cpus penguin is missing it's
> background.

this symptom remains (as does missing graphics on the redhat logo etc. on
the KDE2 login splash screen).

ciao,
Iain.

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Re: Video acceleration on IMSTT with bk (and Ben's) 2.4.7-pre6 kernel

[Ani Joshi]

On Fri, 20 Jul 2001, Iain Sandoe wrote:

> and had forgotten that I no longer use Xpmac compat on my build system (but
> still use Xpmac on the IMSTT -- anyone know if XF-4.1 is OK on IMSTT?)

You should not have problems with 4.1 and the "imstt" driver.  If you do
have problems, please send me a bug report.


Thanks,

ani


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Re: Video acceleration on IMSTT with bk (and Ben's) 2.4.7-pre6 kernel

[Iain Sandoe]

[-- Attachment #1: Type: text/plain, Size: 980 bytes --]

> I just compiled 2.4.7pre6 from Ben's tree, and another one from bk, with
> the same results. It compiled without any problems, but I can't have
> accelerated video. I use "video=imsttfb:vmode:17,cmode:16 video=ofonly"
> as kernel args to have a working unaccelerated video. Without ofonly, I
> get some blue dots forming a very distortioned screen of what should be
> there (linux logo and kernel verbosity). Without the imsttfb part, it
> won't work after the initial boot screen: it stops after
[snip]

BK 2.4.7-pre6:

OK.  It comes up for me 9600/233 with video acceleration and runs "single".

However, it won't start the X-server the error is something like:

 _X11TransConnectUNIX??? errno = 111

Other symptom is that the splash screen #cpus penguin is missing it's
background.

exactly the same config boots 2.4.3 OK and starts the X-server OK.

dmesg attached - I think Ben already has the lspci stuff from this machine -
but I can send it again if needed.

ciao,
Iain.

[-- Attachment #2: dmesg-2.4.7p6 --]
[-- Type: audio/x-mpeg, Size: 4569 bytes --]

Video acceleration on IMSTT with bk (and Ben's) 2.4.7-pre6 kernel

[Simon Piette]

Hi,

I just compiled 2.4.7pre6 from Ben's tree, and another one from bk, with
the same results. It compiled without any problems, but I can't have
accelerated video. I use "video=imsttfb:vmode:17,cmode:16 video=ofonly"
as kernel args to have a working unaccelerated video. Without ofonly, I
get some blue dots forming a very distortioned screen of what should be
there (linux logo and kernel verbosity). Without the imsttfb part, it
won't work after the initial boot screen: it stops after

pmac_init(): exit
id_mach(): done
MMU: enter
MMU: hw init
hash: enter
hash: find peice
hash: patch
hash: clone
MMU: mapin
MMU: setio
MMU: exit
setup_arch: enter
setup_arch: bootmem
arch: exit

Here is some details:

Umax J700/180 192 MB RAM using BootX 1.2.2 (Ben's one)
IMS TwinTurbo 128 2M PCI
Kernel config at: http://www.generation.net/~spiette/linuxppc/config.txt
lspci -vv:
[...]
00:0e.0 Display controller: Integrated Micro Solutions Inc. IMS9129
[Twin turbo 128] (rev 01)
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 8 min, 8 max, 32 set
        Interrupt: pin A routed to IRQ 24
        Region 0: Memory at 82000000 (32-bit, prefetchable) [size=16M]
        Expansion ROM at 80900000 [disabled] [size=64K]

First boot screen:
Welcome to Linux, kernel 2.4.7
started at:     0x00000000
linked at:      0xc0000000
frambuffer at:  0x82000020 (phys) 0x82000020 (log)
[...]

Relevant dmesg output:
Linux version 2.4.7-pre6 (simonp@bing.dyndns.org) (gcc version 2.95.3
20010312 ( prerelease/franzo/20010312)) #1 Tue Jul 17 14:35:46 EDT 2001
Cache coherency enabled for bandit/PSX at 00000000
Found Bandit PCI host bridge at 0xf2000000. Firmware bus number: 0->1
[...]
PCI: Probing PCI hardware
Unknown bridge resource 2: assuming transparent
PCI: Cannot allocate resource region 2 of PCI bridge 1
PCI: resource is 80000000..8fffffff (200), parent c029a068
PCI:00:0e.0: Resource 0: 82000000-82ffffff (f=1208)
[...]
MacOS display is /bandit/IMS,tt128mb
Using unsupported 1024x768 IMS,tt128mb at 82000020, depth=16, pitch=2048
Console: switching to colour frame buffer device 128x48
fb0: Open Firmware frame buffer device on /bandit/IMS,tt128mb
[...]

What could be wrong?

Cheers,

Simon Piette


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