Ubuntu
linux-source-2.6.20 package

cpu usage to 97% when using via driver for x.org

Bug #111587 reported by wezlo
2
Affects Status Importance Assigned to Milestone
linux-source-2.6.20 (Ubuntu)
Invalid
Undecided
Brian Murray

Bug Description

When using the via driver (both the one supplied with feisty and the unichrome driver), when X attempts to start-up the system slows to a crawl. It's still semi-responsive, as I can switch to a virtual console and input commands, the CPU is being used by a process named "events" - which is using 97% of the cpu.

Starting up X with the vesa driver lets it work fine, but then I lose the 3d acceleration I had in edgy. I've checked around and can't find anyone else with this issue. Is there any other information you need from me for troubleshooting?

Revision history for this message
Brian Murray (brian-murray) wrote :

Thank you for taking the time to report this bug and helping to make Ubuntu better. You reported this bug a while ago and there hasn't been any activity in recently. We were wondering if this is still an issue for you? Thanks in advance.

Revision history for this message
wezlo (revwez) wrote : Re: [Bug 111587] Re: cpu usage to 97% when using via driver for x.org

Brian, the problem still exists, I have to pass "acpi=noirq" to the kernel
if I want to use the via driver. I don't know what causes it - but once
it's in grub I'm fine (until I install a new kernel and forget to update
menu.lst!).

Should have updated the bug with my workaround though, sorry.

Wes

On Dec 4, 2007 8:01 PM, Brian Murray <email address hidden> wrote:

> Thank you for taking the time to report this bug and helping to make
> Ubuntu better. You reported this bug a while ago and there hasn't been
> any activity in recently. We were wondering if this is still an issue
> for you? Thanks in advance.
>
> ** Changed in: ubuntu
> Assignee: (unassigned) => Brian Murray (brian-murray)
> Status: New => Incomplete
>
> --
> cpu usage to 97% when using via driver for x.org
> https://bugs.launchpad.net/bugs/111587
> You received this bug notification because you are a direct subscriber
> of the bug.
>

Revision history for this message
Brian Murray (brian-murray) wrote :

You should be able to add this option permanently to your grub configuration by adding it to the section that starts with "## ## Start Default Options ##" with something like 'kopt=acpi=noirq". This will ensure that the option is added to every kernel. Could you please provide the full output of 'sudo dmidecode' to your bug report? Thanks in advance.

Revision history for this message
Brian Murray (brian-murray) wrote :

We are closing this bug report as it lacks the information, described in the previous comments, we need to investigate the problem further. However, please reopen it if you can give us the missing information and feel free to submit bug reports in the future.

Changed in linux-source-2.6.20:
status: Incomplete → Invalid
To post a comment you must log in.
This report contains Public information  
Everyone can see this information.
Subscribing...

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.