[parisc-linux] Re: How to enable LCD screen on K-class?

[parisc-linux] Re: How to enable LCD screen on K-class?

[Mihails Nikitins]

> Woody Debian on my K-class does not show info on status LCD screen after linux
> is started. How to configure this feature? LCD is working before OS is loaded,
> then everything is black.

Anyway, is it possible to get it working? I see that something is overwriting
LCD diagnostic info while loading Linux.

My Kernel is compiled with 
CONFIG_CHASSIS_LCD_LED=y

Sure you know it. :-)

BR,
Mihails

Re: [parisc-linux] Re: How to enable LCD screen on K-class?

[Grant Grundler]

On Thu, Jul 10, 2003 at 11:43:07AM +0300, Mihails Nikitins wrote:
> > Woody Debian on my K-class does not show info on status LCD screen after linux
> > is started. How to configure this feature? LCD is working before OS is loaded,
> > then everything is black.
> 
> Anyway, is it possible to get it working?


Maybe. Depends on which gfx card you have driving the LCD.
Of the few people that do have K-class, I doubt many have a gfx port.

grant

Re: [parisc-linux] Re: How to enable LCD screen on K-class?

[Helge Deller]

On Thursday 10 July 2003 10:43, Mihails Nikitins wrote:
> > Woody Debian on my K-class does not show info on status LCD screen after
> > linux is started. How to configure this feature? LCD is working before OS
> > is loaded, then everything is black.
>
> Anyway, is it possible to get it working? I see that something is
> overwriting LCD diagnostic info while loading Linux.

Please send an output of /proc/cpuinfo. The Hardware-ID of your
system might be interesting to figure out, why it doesn't work.

Helge

Re: [parisc-linux] Re: How to enable LCD screen on K-class?

[Helge Deller]

On Thursday 10 July 2003 18:06, Grant Grundler wrote:
> On Thu, Jul 10, 2003 at 11:43:07AM +0300, Mihails Nikitins wrote:
> > > Woody Debian on my K-class does not show info on status LCD screen
> > > after linux is started. How to configure this feature? LCD is working
> > > before OS is loaded, then everything is black.
> >
> > Anyway, is it possible to get it working?
>
> Maybe. Depends on which gfx card you have driving the LCD.
> Of the few people that do have K-class, I doubt many have a gfx port.

I think Mihails talks about the small panel LCD display on the front of the chassis, 
which e.g. shows "Linux Version 2.5.xx" after boot. 
Or do I misunderstand something here ?

Helge

Re: [parisc-linux] Re: How to enable LCD screen on K-class?

[Grant Grundler]

On Thu, Jul 10, 2003 at 09:23:40PM +0200, Helge Deller wrote:
> I think Mihails talks about the small panel LCD display on the
> front of the chassis, 

doh! yes, I think you are right.

grant

Re: [parisc-linux] Re: How to enable LCD screen on K-class?

[Mihails Nikitins]

> On Thu, Jul 10, 2003 at 09:23:40PM +0200, Helge Deller wrote:
> > I think Mihails talks about the small panel LCD display on the
> > front of the chassis, 
> 
> doh! yes, I think you are right.
> 
> grant
> 

Yes, I tried to explain it as 'status LCD screen'. You're right, it's better to
call it LCD panel. :-) I ask people having D, K, J classes if LCD panels should
work.

I see that panel normal  is being overwritten with black rectangles while
loading Linux. I hope my question is clear now.

BR,
Mihails

P.S. I don't know if you still want to see this.



# cat /proc/cpuinfo
processor       : 0
cpu family      : PA-RISC 1.1c
cpu             : PA7200 (PCX-T')
cpu MHz         : 120.000000
model           : 9000/839/K210
model name      : KittyHawk DC3-120 (K210)
hversion        : 0x00005810
sversion        : 0x00000491
I-cache         : 256 KB
D-cache         : 258 KB (WB)
ITLB entries    : 120
DTLB entries    : 120 - shared with ITLB
BTLB fixed      : max. 16384 pages, pagesize=4096 (64MB)
BTLB fix-entr.  : 0 instruction, 0 data (16 combined)
BTLB var-entr.  : 0 instruction, 0 data (0 combined)
bogomips        : 119.60
software id     : 1200801362

processor       : 1
cpu family      : PA-RISC 1.1c
cpu             : PA7200 (PCX-T')
cpu MHz         : 120.000000
model           : 9000/839/K210
model name      : KittyHawk DC3-120 (K210)
hversion        : 0x00005810
sversion        : 0x00000491
I-cache         : 256 KB
D-cache         : 258 KB (WB)
ITLB entries    : 120
DTLB entries    : 120 - shared with ITLB
BTLB fixed      : max. 16384 pages, pagesize=4096 (64MB)
BTLB fix-entr.  : 0 instruction, 0 data (16 combined)
BTLB var-entr.  : 0 instruction, 0 data (0 combined)
bogomips        : 119.60
software id     : 1200801362

Re: [parisc-linux] Re: How to enable LCD screen on K-class?

[Helge Deller]

Hi Mihails,

please take a look at the code in drivers/parisc/led.c.
There you'll find a few "workarounds" for Kittyhawk machines and
some explanation, why it maybe doesn't work.

=46rom one of the comments:
 ** KittyHawk machines have often a buggy PDC, so that
 ** we explicitly check for those machines here.

Maybe you try to change some coding there, else I'll try and continue=20
to figure out next week....

Helge


On Friday 11 July 2003 08:52, Mihails Nikitins wrote:
> > On Thu, Jul 10, 2003 at 09:23:40PM +0200, Helge Deller wrote:
> > > I think Mihails talks about the small panel LCD display on the
> > > front of the chassis,
> >
> > doh! yes, I think you are right.
> >
> > grant
>
> Yes, I tried to explain it as 'status LCD screen'. You're right, it's
> better to call it LCD panel. :-) I ask people having D, K, J classes if L=
CD
> panels should work.
>
> I see that panel normal  is being overwritten with black rectangles while
> loading Linux. I hope my question is clear now.
>
> BR,
> Mihails
>
> P.S. I don't know if you still want to see this.
>
>
>
> # cat /proc/cpuinfo
> processor       : 0
> cpu family      : PA-RISC 1.1c
> cpu             : PA7200 (PCX-T')
> cpu MHz         : 120.000000
> model           : 9000/839/K210
> model name      : KittyHawk DC3-120 (K210)
> hversion        : 0x00005810
> sversion        : 0x00000491
> I-cache         : 256 KB
> D-cache         : 258 KB (WB)
> ITLB entries    : 120
> DTLB entries    : 120 - shared with ITLB
> BTLB fixed      : max. 16384 pages, pagesize=3D4096 (64MB)
> BTLB fix-entr.  : 0 instruction, 0 data (16 combined)
> BTLB var-entr.  : 0 instruction, 0 data (0 combined)
> bogomips        : 119.60
> software id     : 1200801362
>
> processor       : 1
> cpu family      : PA-RISC 1.1c
> cpu             : PA7200 (PCX-T')
> cpu MHz         : 120.000000
> model           : 9000/839/K210
> model name      : KittyHawk DC3-120 (K210)
> hversion        : 0x00005810
> sversion        : 0x00000491
> I-cache         : 256 KB
> D-cache         : 258 KB (WB)
> ITLB entries    : 120
> DTLB entries    : 120 - shared with ITLB
> BTLB fixed      : max. 16384 pages, pagesize=3D4096 (64MB)
> BTLB fix-entr.  : 0 instruction, 0 data (16 combined)
> BTLB var-entr.  : 0 instruction, 0 data (0 combined)
> bogomips        : 119.60
> software id     : 1200801362
>
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