I have compiled the new gentoo-sources-2.6.16, but now when I boot the system I get only a blank screen. To configure the kernel I used make oldconfig; the earlier 2.6.15-r7 works perfectly.
Portage 2.0.54 (default-linux/amd64/2005.1, gcc-3.4.5, glibc-2.4-r1, 2.6.15-gentoo-r7 x86_64) ================================================================= System uname: 2.6.15-gentoo-r7 x86_64 AMD Athlon(tm) 64 Processor 3500+ Gentoo Base System version 1.12.0_pre16 ccache version 2.4 [enabled] dev-lang/python: 2.4.2-r1 sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.59-r7 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r1 sys-devel/binutils: 2.16.1-r2 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.11-r3 ACCEPT_KEYWORDS="amd64 ~amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=k8 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/revdep-rebuild /etc/terminfo /etc/env.d" CXXFLAGS="-O2 -march=k8 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig ccache distlocks sandbox sfperms strict" GENTOO_MIRRORS="http://www.die.unipd.it/pub/Linux/distributions/gentoo-sources/" LANG="it_IT.UTF-8" LC_ALL="it_IT.UTF-8" LDFLAGS="-Wl,-O1" LINGUAS="it" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="amd64 X a52 aac alsa arts audiofile avi bash-completion berkdb bitmap-fonts browserplugin bzip2 calendar cdb cdda cdparanoia cdr cjk clamav crypt css cups curl divx4linux dri dts dv dvd dvdr dvdread eds emboss emul-linux-x86 encode esd exif expat fam fame ffmpeg firefox flac foomaticdb fortran ftp gif gimp glut gmp gphoto2 gpm gstreamer gtk hal icq idn ieee1394 imagemagick imlib ipv6 java javascript jpeg kde lcms lm_sensors logitech-mouse lua lzw lzw-tiff mad matroska mikmod mime mng mozilla mp3 mpeg msn ncurses nls nptl nptlonly nsplugin nvidia ogg oggvorbis openal opengl pam pcre pda pdflib perl php pic png ppds python qt quicktime readline samba scanner sdl speex spell ssl subtitles tcltk tcpd tiff truetype truetype-fonts type1-fonts udev unicode usb userlocales vcd videos vorbis wxwindows xine xml2 xpm xv xvid yahoo zlib linguas_it userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET
At least attach the kernel .config (don't paste!) and describe when exactly you get blank screen, we can't solve bugs like "oh, my car just won't go"...
Created attachment 82878 [details] .config
The blank screen appears just after selecting the boot option from grub. No error message appears.
Are you able to get any indication of whether the system continues with a blank display, or whether the entire thing freezes? If the system continues with no display, you might see the hard disk light flashing as the system loads, and stuff like that. Do you have enough time(/patience!) to help investigate by booting a range of test kernels? I detailed a very useful (but time-consuming) debugging process at http://www.reactivated.net/weblog/archives/2006/01/using-git-bisect-to-find-buggy-kernel-patches/ Even if you could just get (say) 5 steps into that it would be useful. It also doesn't need to be done all in one go. The problem is that debugging problems like this is very difficult since there is no indication of who's code is the last being executed. Let me know what you can do...
Yeah, the system continues, but with no display. I'll try the test process and then I'll let you know. Thanks.
The process is useless in my case because the original 2.6.15 kernel release found on kernel.org actually gives me the same problem, while the gentoo r7 patched version works perfectly (r3 and r5 worked, too). Is there a way to do the test using the gentoo kernel as comparative?
Sorry, there's nothing wrong with the kernel, it seems to be a grub framebuffer issue, since the problem disappeared after removing the vga=0x318 command in grub.conf
