Setting 8bit colour depth with SPARC T3/T4 onboard graphics causes dtlogin to fail

Asset ID:	1-72-1674096.1
Update Date:	2017-10-11
Keywords:

Solution Type Problem Resolution Sure

Solution 1674096.1 : Setting 8bit colour depth with SPARC T3/T4 onboard graphics causes dtlogin to fail

Applies to:

SPARC T4-1 - Version All Versions and later
SPARC T3-1 - Version All Versions and later
SPARC T3-2 - Version All Versions and later
SPARC T3-4 - Version All Versions and later
SPARC T4-2 - Version All Versions and later
Information in this document applies to any platform.

Symptoms

Unable to set color depth to 8bpp using the onboard ast graphics device.

# svcs cde-login
STATE STIME FMRI
online 18:58:25 svc:/application/graphical-login/cde-login:default

# svccfg
svc:> select application/x11/x11-server
svc:/application/x11/x11-server> setprop options/default_depth=8
svc:/application/x11/x11-server> quit
# svcadm restart cde-login

# tail -f /var/svc/log/application-graphical-login-cde-login:default.log
[ May 1 09:27:31 Executing start method ("lib/svc/method/svc-dtlogin") ]
[ May 1 09:27:31 Method "start" exited with status 0 ]
[ May 1 09:27:33 Stopping because process killed due to uncorrectable hardware error. ]
[ May 1 09:27:33 Executing stop method (:kill) ]
:
[ May 1 09:28:52 Executing start method ("lib/svc/method/svc-dtlogin") ]
[ May 1 09:28:52 Method "start" exited with status 0 ]
[ May 1 09:29:23 Stopping because process killed due to uncorrectable hardware error. ]
[ May 1 09:29:23 Executing stop method (:kill) ]
[ May 1 09:29:28 Restarting too quickly, changing state to maintenance ]

Cause

The Service Processor does not support 8bit colour.

Solution

Software emulation may provide 8bpp though this is outside of the scope of support from a platform side.

default_depth needs to be set to either 16bit or 24bit colour.

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