On Sat, Dec 04, 2004 at 08:21:32PM -0500, Michael H. Warfield wrote: > On Fri, Dec 03, 2004 at 02:39:31PM -0700, Sean Dogar wrote: > > Hi all: > > I've just installed FC3 on a Dell Latitude D600 laptop; I seem to be > > having some problems with X. This machine has 1 gigabyte of RAM, 80 gig > > disk, and the ATI Radeon Mobility M9 graphics processor. > > I run the laptop primarily in the dock, so as to be able to use a second > > monitor (dual-head). There are no major issues for me here; X sets up > > correctly, and I can use system-config-display to enable and configure > > the second monitor. > > Here's the problem: If I use any hot-key combination in X to either > > kill X (with Ctrl-Alt-Backspace) or to switch to a virtual console (with > > Ctrl-Alt-F1), X freezes. I can ssh to the box, and I try to kill X, but > > it's no use, it won't be killed...I can reboot at that point and it will > > go away. Examining the X logs afterwards shows nothing but the startup > > of X, which is successful. I have also used up2date to update the X > > binaries, with no success. > There have been threads on this as well as discussion > in one of the Fedora forums and there's a bugzilla report on it. > Search the archive for this list for the thread on: > "xorg.conf nx7000 dual head problem" > For the forum discussion go here: > <http://www.fedoraforum.org/forum/showthread.php?t=27513&page=2> > For the buzilla report, go here: > <https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=140435> You can also try this bug ID (which seems to be either the same bug or a related bug: <https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=138503> > Basically, from what I can determine, it's an xorg X server > problem when running in any dual head mode (clone, Xinerama, or > side-by-side multihead). If the X server in that mode (and this > includes rhgb at bootup) on the screen and the virtual consoles are > switched (either to a text vc or another X server such as the gdm > screen from rhgb) then you're toast. The X server hangs burning > CPU time like crazy. Further experimentation seems to indicate that it may be related to hardward acceleration. I added the following line to my xorg.conf file: Option "NoAccel" "on" I added that to the Device section for the Radeon driver. Now all the VC switching works and I can switch between multiple instantiations of X in different modes and dual head configs. Unfortunately, some of the graphics (like Mozilla scrolling) is significantly slower. : > > Previously, I used this laptop with FC2 with few issues (aside from > > never being able to get display acceleration working), and I did a fresh > > install of FC3 hoping that this would solve my problems, but no dice. > > For me, this issue is a showstopper as I regularly switch to the > > standard virtual consoles while using X. > > If you switch to standard vc's while using X then you can not > use a multi-head mode until they FIX this damn thing. They are currently > mutually exclusive. Try diabling hardware acceleration and see if that helps. I suspect it will "fix" the problem, if you can live with the cost in graphics performance. : > > -Sean Mike -- Michael H. Warfield | (770) 985-6132 | mhw WittsEnd com /\/\|=mhw=|\/\/ | (678) 463-0932 | http://www.wittsend.com/mhw/ NIC whois: MHW9 | An optimist believes we live in the best of all PGP Key: 0xDF1DD471 | possible worlds. A pessimist is sure of it!
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