Distribution: Slackware 9.1 Hardware Environment: Matrox Millenium II AMD Athlon 1.1 ghz 756MB ram Software Environment: kernel console + XFree86 4.3 Problem Description: High resolution console gets garbled when X running at higher resolution then the console Steps to reproduce: Compile kernel with Matroxfb and use video option 'matroxfb:vesa:0x193' when booting. Then start an X session, with mga driver in stead of fbdev driver, make sure the X-session is running at a higher resolution then the console, and switch from the X-session to the console. Now run ls or simply clear screen. This is all it takes for me to get garbled console results. To go back to a normal console simple run X with the same resolution as the console. ( maybe using the fbdev driver ).
Created attachment 999 [details] .config file
I can reproduce this with 2.6.0-test9 and XFree86 4.2.1 on a G400. (Running Debian woody with selected backports of packages from Debian unstable.)
This patch ftp://platan.vc.cvut.cz/pub/linux/matrox-latest/matroxfb-2.6.0.gz fixed it for me.