Distribution: Ubuntu 8.10 Hardware Environment: Acer Extensa 5220 Software Environment: N/A Problem Description: When I boot with the intelfb and vesafb modules compiled into the kernel, the kernel crashes quickly during boot (probably during intelfb initialization - the timing seems fit). The displays goes completely blank / off, the keyboard does no longer respond at all (even reisub). I have to power off hard by pressing the power button for a few seconds. I can avoid the crash by having vesafb switch the display resolution (vga=0x0362).
The system also crashes in 2.6.27 when I do modprobe intelfb mode=AxB. But then it's not a hard crash, as at least reisub still works.
Created attachment 19428 [details] 2.6.28-git configuration (module compiled in)
Created attachment 19429 [details] 2.6.28-rc9 dmesg with vga= workaround
Created attachment 19430 [details] dmesg right after modprobe I've managed to capture this dmesg right after modprobe intelfb, having the modules compiled with debug information.
Reply-To: akpm@linux-foundation.org (switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). On Mon, 22 Dec 2008 03:46:45 -0800 (PST) bugme-daemon@bugzilla.kernel.org wrote: > http://bugzilla.kernel.org/show_bug.cgi?id=12271 > > Summary: kernel crash during startup with intelfb compiled into > kernel > Product: Drivers > Version: 2.5 > KernelVersion: 2.6.28-rc9-git > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: Video(Other) > AssignedTo: drivers_video-other@kernel-bugs.osdl.org > ReportedBy: dennis.jansen@web.de > > > Distribution: Ubuntu 8.10 > Hardware Environment: Acer Extensa 5220 > Software Environment: N/A > Problem Description: > > When I boot with the intelfb and vesafb modules compiled into the kernel, the > kernel crashes quickly during boot (probably during intelfb initialization - > the timing seems fit). The displays goes completely blank / off, the keyboard > does no longer respond at all (even reisub). I have to power off hard by > pressing the power button for a few seconds. > > I can avoid the crash by having vesafb switch the display resolution > (vga=0x0362). > Sorry, I don't know of anyone who can work on this :( If there's any earlier kenrel which worked OK then performing a bisection search would be most valuable. http://www.kernel.org/doc/local/git-quick.html has some tips.
Okay. Thanks for letting me know!