[G84] X freezes after pressing ENTER

[Alkis Georgopoulos]

Using Lucid amd64, after today's updates my PC crashes after 1-2 minutes of usage.
Downgrading xserver-xorg-core and xserver-common to 2:1.7.3.902-1ubuntu9 worked fine for me.
I also tried with the daily-live 20100203 and I got the same problem.
I tried with the nvidia, nv, and the failsafe (vesa) drivers.

Symptoms vary:
Sometimes X crashes and I get to gdm.
Sometimes I see corruption on the top of the screen, like terminal consoles drawn in the wrong bit-plane in the video ram.
Sometimes the kernel hangs, caps lock is flashing, and ping/REISUB do not work.

My hardware:
00:00.0 Host bridge [0600]: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub [8086:2a00] (rev 03)
00:01.0 PCI bridge [0604]: Intel Corporation Mobile PM965/GM965/GL960 PCI Express Root Port [8086:2a01] (rev 03)
00:1a.0 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 [8086:2834] (rev 03)
00:1a.1 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 [8086:2835] (rev 03)
00:1a.7 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 [8086:283a] (rev 03)
00:1b.0 Audio device [0403]: Intel Corporation 82801H (ICH8 Family) HD Audio Controller [8086:284b] (rev 03)
00:1c.0 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 [8086:283f] (rev 03)
00:1c.3 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 [8086:2845] (rev 03)
00:1c.5 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 6 [8086:2849] (rev 03)
00:1d.0 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 [8086:2830] (rev 03)
00:1d.1 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 [8086:2831] (rev 03)
00:1d.2 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 [8086:2832] (rev 03)
00:1d.7 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 [8086:2836] (rev 03)
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev f3)
00:1f.0 ISA bridge [0601]: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller [8086:2815] (rev 03)
00:1f.1 IDE interface [0101]: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller [8086:2850] (rev 03)
00:1f.2 SATA controller [0106]: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller [8086:2829] (rev 03)
00:1f.3 SMBus [0c05]: Intel Corporation 82801H (ICH8 Family) SMBus Controller [8086:283e] (rev 03)
01:00.0 VGA compatible controller [0300]: nVidia Corporation G84 [GeForce 8600M GT] [10de:0407] (rev a1)
06:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection [8086:4229] (rev 61)
08:00.0 Ethernet controller [0200]: Broadcom Corporation NetLink BCM5787M Gigabit Ethernet PCI Express [14e4:1693] (rev 02)
0a:09.0 FireWire (IEEE 1394) [0c00]: Ricoh Co Ltd R5C832 IEEE 1394 Controller [1180:0832] (rev 05)
0a:09.1 SD Host controller [0805]: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter [1180:0822] (rev 22)
0a:09.2 System peripheral [0880]: Ricoh Co Ltd R5C843 MMC Host Controller [1180:0843] (rev 12)
0a:09.3 System peripheral [0880]: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter [1180:0592] (rev 12)
0a:09.4 System peripheral [0880]: Ricoh Co Ltd xD-Picture Card Controller [1180:0852] (rev ff)

[Andreas Noteng (andreas-noteng)]

Can you please post the following log files after a crash?
/var/log/Xorg.0.log
/var/log/messages

[Alkis Georgopoulos (alkisg)]

I don't know if it's due to my lack of observation or due to the fact that I've reinstalled Lucid, and I'm using i386 instead of amd64 now, but the symptoms have changed a bit.

Now I get an X crash the first time I press the [Enter] key.

I'm getting that both with the current xserver-xorg-core 2:1.7.3.902-1ubuntu12 *AND* with the previous -1ubuntu9, which I didn't get when I filed the bug report.

So, in order to keep using my PC, I'm usually booting to gdm,
pressing [Enter] so that it hangs,
pressing Alt+Ctrl+Print screen+K to restart X,
and the I'm able to work fine! It doesn't hang after the first time!

I also tried enabling autologon, to bypass gdm. Again, X crashes when I e.g. open firefox, write a URL and press [Enter]. Just on the first Enter, it doesn't crash after that.

I'm attaching the requested files exactly after the steps mentioned above, and also the output of:
gconftool-2 --dump /desktop/gnome/peripherals/keyboard

[Alkis Georgopoulos (alkisg)]

I've just seen that this also works for me:
 * Booting to gdm
 * Resetting X
 * Logging on normally

I.e. an X reset, even without pressing the [Enter] key so that it hangs first, also allows me to work without problems.

[Andreas Noteng (andreas-noteng)]

Your Xorg.0.log file is from after X-restart? could you please also attach Xorg.0.log.old?
I'm seeing a lot of ACPI errors in your messages, I do not think these are related to your issue, should maybe be posted in separate bug?

[Alkis Georgopoulos (alkisg)]

Yes, that Xorg.0.log was just after the X reset while on gdm and before logging in.
I'm attaching Xorg.0.log.old. I'm still on the same session, I haven't rebooted since.
Thank you for the ACPI-errors notice. :-)

[Andreas Noteng (andreas-noteng)]

sadly I'm unable to find any error messages in your logs, besides the ACPI ones. Maybe it's related after all?
Could you please recreate the freeze change to console and post the results of the following:
dmesg > dmesg.log
top -b -n 5 > top.log

I doubt they will reveal anything but to be sure also try posting:
/var/log/daemon.log
/var/log/kern.log
/var/log/syslog

[Alkis Georgopoulos (alkisg)]

While X freezes I can't switch to vt1, so I'm sending two directories with the files, one before the freeze, and one after the freeze but also after the X reset. Both of them are while I'm on gdm.

Also, when switching to vt1 before the freeze, I'm not seeing the expected console output, but only random characters and colors, like if the 0xB800 segment is filled with random data (it might be the gdm wallpaper). So I had to make a shell script with the dmesg, top etc commands and logon/run it blindly.

I tried removing "quiet splash" from grub.cfg, and also removing my xorg.conf, so that nv is used instead of nvidia, but I only noticed a minor change in the random characters / colors pattern - vt1 was still unusable before the freeze.

While switching back to gdm (and before the freeze), I could see two small dots blinking on the top of my screen, which I suppose would be the cursor.

After X freezes and I reset it, everything is back to normal: the console is ok, no blinking dots in gdm etc.

Thank you for your time!

[shankao (shankao)]

Can this bug be a duplicate of #516412?

[Alkis Georgopoulos (alkisg)]

I'm not sure if my initial problem was a duplicate of #516412, but what I'm experiencing now, after the reinstallation, surely is.
Removing plymouth solved my problem.
Thanks!

[Ravindra (ravindra-sane)]

Same here... removing plymouth solves the problem

[Ravindra (ravindra-sane)]

sorry.. am new to launchpad.. commented on the duplicate bug..