lib/53419: startx did not work

[szptvlfn%a-net.email.ne.jp@localhost]

>Number:         53419
>Category:       lib
>Synopsis:       startx did not work
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jul 03 00:45:00 +0000 2018
>Originator:     szptvlfn
>Release:        n-current
>Organization:
n/a
>Environment:
6.99.21 amd64
>Description:
from /var/log/Xorg.0.log by hand (not c&p)
...
Failed to load /usr/X11R7/lib/modules/drivers/radeon_drv.so: Undefined symbol "glamor_egl_init_textured_pixmap" (symnum = 10)
...
Failed to load /usr/X11R7/lib/modules/drivers/vesa_drv.so: Undefined symbol "VBEValidateModes" (symnum = 8)


console still dark, no info without hack
>How-To-Repeat:
try current on real machine
>Fix:
n/a