Hang after "BIOS data check successful" with DVI
Quoted 16 lines · Zwane Mwaikambo
Quoted 7 lines · Petr Vandrovec
Quoted 5 lines · Shaun Jackman
When I have a DVI display plugged into my Matrox G550 video card the boot process hangs at "BIOS data check successful". I am running Linux kernel 2.6.6. This problem does not affect Linux kernel 2.4.26. If I boot without the DVI display plugged in, I can plug it in after the boot process and the display works.
Quoted 6 lines
Try disabling
CONFIG_VIDEO_SELECTand/or comment out call tostore_edidinarch/i386/boot/video.S. Also which bootloader you use? From quick glance at bootloaders, grub1 seems to set %sp to0x9000, while LILO to0x0800. And I think that 2048 byte stack (plus something already allocated by loader) might be too small for DDC call, as MGA BIOS first creates EDID copy on stack...
Quoted 3 lines
Urgh, this bug is still around :(
Yes, it looks like this very same problem. From looking at G400 BIOS it would need 380 bytes plus whatever PCI BIOS services need - and PCI BIOS system calls are specced to fit into 1024 bytes on stack. G550 BIOS seems to need 200 bytes plus whatever PCI BIOS services need. So LILO's 2KB should be sufficient - and indeed I do not see problem with G550 & LILO (Debian's 22.5.9) here, with both DVI and analog cables connected in.
Best regards,
Petr Vandrovec