Package: xserver-xorg-video-mga Version: 1:1.2.1.3.dfsg.1-2 Severity: important
Dual head operation on a PCI G450 fails. The first screen is not initialized properly. The result is an incorrect video signal on the first port. This likely has to do with mga driver not being able to read the BIOS for the correct timing parameters. For a single head configuration, the UseFBDev parameter can be used. This option causes the mga driver to use the kernel fb device for mode switching and mmapping of video memory and accelerator registers instead of directly going to the hardware. For a dual head configuration this does not work because the mga driver tries to resolve the fb /dev entry by only looking at the PCI ID. As the PCI ID is the same for both screens, the mga driver will use the same fb device for both screens which obviously results in chaos :-). A working solution is to add an fbdev option which allows specifying the fb /dev entry for each screen. It's probably adviseable to always use the fb interface instead of trying to mess around with mmapping the BIOS directly. -- System Information: Debian Release: testing/unstable APT prefers unstable APT policy: (500, 'unstable') Architecture: amd64 (x86_64) Shell: /bin/sh linked to /bin/bash Kernel: Linux 2.6.11.7 Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) Versions of packages xserver-xorg-video-mga depends on: ii libc6 2.3.6-5 GNU C Library: Shared libraries an ii xserver-xorg-core 1:1.0.2-4 X.Org X server -- core server xserver-xorg-video-mga recommends no packages. -- no debconf information -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
