Installed Gutsy can not boot on Santa Rosa

My T61 is working fine with kernel 2.6.22-12.36-generic (32-bit). I haven't tried 64-bit on it.

Hi, thanks for reporting. Unfortunately this comes ust a few days too late to be fixed for the 7.10 ISO images, which will be released in a few hours. Since bthere is a work-around, this cannot be considered release-critical. The T61s are reported to work well with the i386 install also.

I've milestones it for gutsy updates.

Could you please attach the information requested on https://wiki.ubuntu.com/KernelTeamBugPolicies Thanks!

Thanks for the feedback.

I found that setting the SATA Controller Mode to "Compatibility mode"
instead of "AHCI mode" can solve this problem.

So I will mark this bug as "invalid".

Thanks for the information.

BTW, have you see the following bug on your T61?

Visual Effects can not be enabled on Santa Rosa
https://bugs.launchpad.net/bugs/153818

if the problem (bug) exists , then its needs a solution.
this workaround is a instantaneous relief but Many other people can be affected by this bug and will don't know how to fix by workaround
and others can have a working system and someday change the emulation mode and receive a unbootable system and kick the Ubuntu :)
then this bug needs a permanent and automatic fix

I can not reproduce this bug easily. Looks like this bug may be caused by instable hardware. Let's see if others can also meet this issue.

I know that I've had to perform this workaround in the past (it's pretty well-documented on the web). I haven't tried with Gutsy Final, but will today, and report back...

Rolla, any news with the 7.10 Gusty final release? I'm marking the status "Incomplete" for now and also dropping Importance to "Medium" because of the workaround mentioned. Thanks!

Hi Leann, I just changed the tag from 'intel-critical' to 'intel-normal', because of the documented workaround, I think 'Medium' on launchpad is good...

Thanks Rolla. So I assume you still have to use the 'irqpoll' boot option workaround with the new 7.10 Gusty Gibbon release? Thanks!

I found a similar bug for ACPI, which is not fixed yet.

Kernel Bug Tracker Bug 8853:
irq NN: nobody cared on ThinkPad X61T,T61
http://bugzilla.kernel.org/show_bug.cgi?id=8853

I have tested with the new 7.10 Gutsy Gibbon release on my T61 with both i386 and ix86_64 (live-cd). The problem exists for me on both 'install' and 'boot-up'.

Install live-cd: I have to add the 'irqpoll' option _or_ in my BIOS config, switch from 'AHCI' to 'COMPATIBILITY' mode in the SATA config for the install to work.

Boot-up the installed OS: I have to change my BIOS config from 'AHCI' to 'Compatibility' mode in the SATA config. Using 'irqpoll' in the grub boot option seemed to work until I logged in. The gfx was acting erratically after I logged in via the Desktop gui, with the whole screen filled with underscores '_', although it seemed to function normally otherwise.

I didn't test with alternate, or use both 'irqpoll' and 'Compatibility' mode at the same time.

Hi Rolla and Xiaoyang,

Can you guys comment if this is still an issue in the latest Hardy Alpha release? Thanks.

No such issue with alpha5 on SantaRosa platform

Thanks
Kevin

Thanks Kevin. I'm marking this 'Fix Released' against Hardy. Just for future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status . Thanks again for testing and the update!

Per a decision made by the Ubuntu Kernel Team, bugs will longer be assigned to the ubuntu-kernel-team in Launchpad as part of the bug triage process. The ubuntu-kernel-team is being unassigned from this bug report. Refer to https://wiki.ubuntu.com/KernelTeamBugPolicies for more information. Thanks.