Red Hat Bugzilla – Bug 78318
X doesn't start up
Last modified: 2007-04-18 12:48:37 EDT
Description of Problem:
I've updated a system runing RHL8 to beta1. The machine has a GeForce4 card and
was using the vesa driver. After the update the XF86Config file still litst the
vesa driver as being used but X does not show any sign of life.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Start X on system updated from RHL8
(EE) VESA(0): vm86() syscall generated signal 4.
(EE) Scnree(s) found, but non have a usable configuration.
X starts up and shows nice pictures.
This is a P4 UP HT machine running the SMP kernel (and therefore has two CPUs)
Created attachment 85864 [details]
Config file after the update
Maybe I should add that this is a GeForce4 card.
Just for other people that might find this bug report as well...
For CVS XFree86, you should configure the card to use the "nv" driver,
instead of the "vesa" driver. XFree86 CVS has native GeForce 4 support
The vesa driver probably should still work also though, so I'll keep
this open to investigate with some Nvidia hardware.
I'm wondering if kernel changes may be responsible for this perhaps?
Would NPTL or anything else potentially get in the way of vm86?
NPTL might well have an impact on what is in the segment registers, especially if
the XFree86 int code for VESA is not NPTL aware. May need some Xserver hacking
The same machines run the final RHL9 and RC test2. I'm closing the bug. Must
have been temporary insanity on the side of the nv driver.