Red Hat Bugzilla – Bug 139588
(i810) CRT/LCD switching broken
Last modified: 2007-11-30 17:10:54 EST
Description of problem:
The CRT/LCD switch for my Laptop with the i810 driver is broken. (Dell
The i810_drv.o from the latest fc2 (dated Sep 28) does not show the
Problem (all the other components unchanged.)
Version-Release number of selected component (if applicable):
Use Fn+F8 (in my case)
Nothing - just a screen flicker.
Changing output: LCD -> CRT+LCD -> CRT -> LCD
Quite annoying, but using the old driver does not show any problems so
I'll add one more data point to this. I ran into the same issue on my
IBM Thinkpad R-series. I upgraded from FC1 to FC3 and cannot switch
from LCD to CRT using Fn+F7. I also use the same i810 driver as the
original bug submitter.
For Dell inspiron 1150, I have found two ways to use an external monitor. One
is to start the computer and switch to the external monitor when in grub. This
will make the external monitor availabel, but the LCD will not be for the duration.
The other is to use a program call i810switch to turn on and off the external
monitor. This will leave LCD on. For other dell's, the program i855crt works
for many. For sony and toshiba, ltpconf appears to work, though I have not
Still a problem with xorg-x11-6.8.1-12.FC3.21.i386.rpm, on my Thinkpad R51. Can
confirm that from comment #2, during the reboot, things will work. But its
This used to work with XFree86 previously
This is a duplicate of another bug currently in bugzilla that I don't have
the bug ID handy for. There is a freedesktop.org bug that is tracking this
issue as well, along with suggested workarounds. Alan Hourihane has aparently
fixed this problem, or provided a workaround in CVS head as well.
I'm going to leave this open for now until I run into the duplicate bug, but
if someone finds it before I do, please paste the bug # here.
I have a DELL inspiron 510m with a 82852/855GM video card, and when I
press Fn+CRT/LCD, the X server dies. However, I can successfully use
i855crt (http://sourceforge.net/projects/i855crt) to use the projector.
This bug is a duplicate of bug #141447. On that bug, there is a link
to a freedesktop.org bug report that fixes all the problems.
*** This bug has been marked as a duplicate of 141447 ***
Changed to 'CLOSED' state since 'RESOLVED' has been deprecated.