[comp.sys.hp] Two-headed Turbo/Topcat Trouble

stroyan@hpfcso.HP.COM (Mike Stroyan) (02/02/90)

>This configuration worked fine when the TSRX was DIO-I and the system only had >16MB of memory.  Is our new configuration not supported?  Can anyone who has
>access to the X11 server sources offer any advice?

The DIO-II address space maps in devices in larger blocks than the DIO-I
address space.  As a result, your TurboSRX now occupies more addresses.
You need to reconfigure your kernel with larger limits for the addresses
allowed in processes.  The shmmaxaddr parameter controls the highest
address that a shared memory segment or mapped graphics device can
occupy.  The maxdsiz parameter controls the maximum size of a process
data area, a limit which may affect a very large X server process.

See the System Administrator manual for instructions on changing these
parameters.

Mike Stroyan, stroyan@hpstryn

tomg@hpcvlx.cv.hp.com (Thomas J. Gilg) (02/03/90)

> This configuration worked fine when the TSRX was DIO-I and the system only had
> 16MB of memory. Is our new configuration not supported?  Can anyone who has
> access to the X11 server sources offer any advice?

Try,

*******************************************************************************
* MEMORY LAYOUT
*** maximum data size - make 32 MB instead of 16 MB
maxdsiz 0x2000000
*** maximum shared memory - needed for frame buffers in high DIO II space
shmmaxaddr 0x2000000
shmmax 0xC00000
*** virtual memory swap space - pp712 of Adm manual
dmmin    16
dmmax  1024
dmtext 1024
dmshm  1024

scott@hpwrce.HP.COM (Scott Rasmussen) (02/03/90)

>We can't get the HP-UX 6.5 X11 server to drive Topcat and Turbo SRX displays
>simultaneously on our 9000/370 after reconfiguring the TSRX as a DIO-II device

>Recently we increased the memory of our HP 9000/370 from 16MB to 24MB and its
>TSRX stopped working; 
    >>>>after reconfiguring the TSRX as a DIO-II device, we can <<<<<
>run X11 on either display, or we can run two X11 servers, but when we try to
     >>>> drive both displays with a single X server, .....

From "Configuring the X Window System (p/n 98594-90025)"

Section "Configuring for Multi-Head Systems"

You may need to reconfigure your kernel to allow for a larger data space and
shared memory space.  Refer to the HP-UX System Administrator Manual for
details.

The following is a sample which could work in your dfile...

	* 32 Mbyte maxdsiz
	maxdsiz 	0x200000	
	shmmaxaddr	0x200000
	shmmax		0xC00000
	* swap parameters
	dmmin		16
	dmmax		1024
	dmtext		1024
	dmshm		1024

Scott Rasmussen 
Hewlett-Packard Mountain View
scott@hpwrc