On Fri, 2002-01-11 at 13:52, Roland Schulz wrote: > when I switch to vt while there is much drawing on the X Server (like KDE > start) the X Server crashes after 1-2 seconds with SEGV. > My setup: Linux 2.4.17, debian testing > XFree86 Version 4.1.0.1 (no option to fbdev, the same resolution and color > depth as set with fbset) > The problem is the same, if I only use the first head. > Hardware: Matrox G450, Athlon SMP > I don't have the problem, if I use the mga X driver on top of matroxfb, > instead of using the fbdev on top of matroxfb. But then there is a strange > flickering when the X Server starts, so I prefer the fbdev driver. > > You probably need more information, but I'm not sure what else I could write > about this problem. Please let me know what else you need.
A stack trace from when the server crashes would be most interesting. > I first wrote to Petr (the matroxfb mantainer) he wrote me the following: > > I have no idea why it should die, on Gxxx neither video memory start > > nor length changes on mode switch (it changes on MillenniumI/II), and > > matroxfb does not steal framebuffer mapping from any app on console switch > > (there are some plans to do that on 2.5.x, but as I disagree with these > > plans...), only X itself unmap framebuffer itself. > > > So I think that it is fbdev problem - if you are getting kernel oops, > > it is for sure matroxfb's problem, but if you are not getting them, it > > looks to me like that fbdev driver tries to paint to screen even if > > it is not visible That's a good analysis, so have you determined if the segfault is in fact an oops? -- Earthling Michel D�nzer (MrCooper)/ Debian GNU/Linux (powerpc) developer XFree86 and DRI project member / CS student, Free Software enthusiast _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
