Mouse does not work after kernel upgrade to 2.6.15-25

I can confirm this, happens to me on linux-image-2.6.15-25-686 with my Logitech MX1000 (the Synaptics Touchpad keeps working though). Both mice work fine with linux-image-2.6.15-23-686.

Output of dmesg on 2.6.15-25. Turns out that my cdrom drive disappears with this kernel aswell (no /dev/hdb).

Output of 'sudo lspci -vv' with 2.6.15-25.

psmouse.c: GlidePoint at isa0060/serio4/input0 lost synchronization, throwing 1 bytes away.

This is the only thing I see related to a problem. Can you give me more info on your mouse? Also, can you try another mouse?

The touchpad uses psmouse, the MX1000 uses evdev (rmmoding psmouse only stops the touchpad). The mouse is a Logitech MX1000 connected through usb, and xorg is configured to use it through evdev. I remember having this problem a few kernels back, before Dapper's release, but it was more random back then. It would work for like 20 reboots, and then it would take 2 or 3 to make it work again. I'll try some more reboots, maybe my /dev/hdb will come back aswell.

I just noticed something interesting. In this dmesg, from the working -23 kernel, line 198 is:
'ide0: BM-DMA at 0x1880-0x1887, BIOS settings: hda:DMA, hdb:DMA'

and line 207 is: 'hdb: ATAPI 24X DVD-ROM DVD-R CD-R/RW drive, 2000kB Cache, UDMA(33)'

the dmesg from -25 shows hdb on line 198, but not later on. Probably why my CD isn't detected. But I guess this is a bug of it's own.

Ok, so I got the mouse working, by rebooting about 5 times. I think it's some sort of race between modules or something, because in the X log (attached) I noticed:
'Synaptics Touchpad auto-dev sets device to /dev/input/event3'

When my MX1000 doesn't work, the X log shows:
'Synaptics Touchpad auto-dev sets device to /dev/input/event2'

See above

I didn't know which logs to attach when I filed the bug. I hope these are the right ones.

I'm using a generic PS/2 optical mouse, that's the only info I have.

Here's the lspci output from 2.6.15-23-k7

dmesg output for 2.6.15-25-k7 where the mouse doesn't work.

lspci output for 2.6.15-25-k7, where the mouse does not work.

Ok, fixed my problem, 'sudo dpkg-reconfigure udev' did the trick. Try that, if it doesn't work, I guess we had different problems.

I guess we do have different problems, as reconfiguring udev didn't work.

This makes me very sad...

Ok, so the udev thing didn't actually work, it just seemed that way. I tried booting with 'acpi=off' though, and that seems to be working so far (but no battery level!).

I hate to bump this bug report (I don't know if it's even allowed). I tried making another fresh install of Ubuntu a few days ago. After installation, all I did was to upgrade what was available, then upgraded the kernel to 2.6.15-25. Still no mouse, but everything else works ok.

I noticed the status of this bug report is "Needs Info". What other info is needed aside from the lspci and dmesg outputs that I gave? This is my first bug report, so I'm a bit clueless.

This is definitely some sort of Xorg bug. The xorg.log shows two different things in your working/not-working. One time is detects the mouse as serio and the other it detects as usb.

So this is an Xorg bug after all?

@Ben Collins: Thanks for taking time to read this (poorly written) bug report. I have a few more info to add, though.

I recently ran some more tests with other distributions (Live CDs), in an attempt to see a pattern. I tried out the latest versions of the following distributions, and the kernel versions they were using:

SimplyMEPIS 6 beta 3 (2.6.15-22)
KNOPPIX 5.0.1 (2.6.17)
SymphonyOS Beta 2006-05 (2.6.16)
GoblinX mini (2.6.16.12)
Berry Linux (2.6.16)

Of all these, it was only SimplyMEPIS 6 that was able to make my mouse work. I also tested the same distros using an older PS/2 mouse and it worked with all of them. (But the older PS/2 mouse itself is quite defective). I saved the dmesg log of each distro using the 2 mice.

These 2 mouse-related lines were common in the dmesg logs of the distros where the mouse didn't work

input: PS/2 Generic Mouse as /class/input/input1
psmouse.c: Failed to enable mouse on isa0060/serio1

While for the distros that did work, this was the line:

input: ImPS/2 Generic Wheel Mouse as /class/input/input1

I'm not sure about my conclusion, but it seems that kernel versions higher that 2.6.15-23 (2.6.15-25, 2.6.16, and 2.6.17) doesn't seem to recognize/load my mouse properly anymore.

But as you said, it's an Xorg problem, so I might be greatly mistaken.

I will be attaching the dmesg outputs for the different distros I tested (excluding MEPIS).

Thank you again!

dmesg for Berry Linux (working mouse)

Berry Linux
Fedora Core-based
kernel version 2.6.16

dmesg for Berry Linux (no working mouse)

Berry Linux
Fedora Core-based
kernel version 2.6.16

dmesg for GoblinX mini (working mouse)

GoblinX mini
Slackware-based
kernel version 2.6.16.12

dmesg for GoblinX mini (no working mouse)

GoblinX mini
Slackware-based
kernel version 2.6.16.12

dmesg for KNOPPIX (working mouse)

KNOPPIX 5.0.1
Debian-based
kernel version 2.6.17

dmesg for KNOPPIX (no working mouse)

KNOPPIX 5.0.1
Debian-based
kernel version 2.6.17

dmesg for SymphonyOS (working mouse)

SymphonyOS Beta 2006-05
Debian-based
kernel version 2.6.16

dmesg for SymphonyOS (no working mouse)

SymphonyOS Beta 2006-05
Debian-based
kernel version 2.6.16

Please try a newer version of Ubuntu, mouse seems to work just fine for most users.

My bad. I thought this bug report was closed already. I just bought a new mouse back then to fix it. I've never tested again. Marking as Invalid now