On Tue, Jun 1, 2010 at 8:32 PM, Larry Doolittle <[email protected]> wrote: > Ross - > > On Tue, Jun 01, 2010 at 10:09:21AM -0400, Ross Vandegrift wrote: >> On Mon, May 31, 2010 at 09:52:37PM -0700, Larry Doolittle wrote: >> > ... screens go black when I start the X server. >> >> I've recently been seeing this symptom as well. Same Debian release, >> ATI RS880 video. Maybe 10% of the time, when returning from video >> suspend, the screen contents come up for approximately a second and >> then the monitor goes blank. Switching to a text VT and back fixes >> the issue. >> >> Only seems to be triggered on startup and return from power saving >> mode. > > My black-screen is 100% reliable. Maybe the underlying cause is > similar, but the symptoms sound different to me. I never see > anything, not even for a second. OTOH, maybe there is something > there for a second but my monitor doesn't sync to it in time. > > Just for kicks, I installed the firmware-linux-nonfree package, > so the kernel could have those radeon microcode files if it wanted. > It didn't help. I don't see the RS780 on the list of files at > http://packages.debian.org/squeeze/firmware-linux-nonfree > except generically in the R700-family. > > I only have access to this computer for a limited number of hours > in the day, so my debugging iterations may be slow. > > I have assumed that the problem is in the hardware-dependent > xf86-video-ati-6.13.0 module. Is there any point in trying > more recent versions of the X server itself? Squeeze runs > xserver-xorg-core based on xorg-server_1.7.7 .
You might try using the old PLL code: Option "NewPLL" "False" in the device section of your config. Do any modes besides 2048x1152 work? It's probably also worth trying kms. Alex _______________________________________________ [email protected]: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: http://lists.freedesktop.org/mailman/listinfo/xorg Your subscription address: [email protected]
