[i855] Xorg errors and warnings for intel 855GM

Hi,
I've the same problem with my old Lifebook C1110D using the same card (Kubuntu 8.10 KDE 4.1).

Continuos errors registered:
intel(0): I2C device "LVDSDDC_C:ddc2" removed.
intel(0): tried to update DSPARB with both planes enabled!

My xorg.conf (very basic!!):
Section "Device"
 Identifier "Configured Video Device"
EndSection

Section "Monitor"
 Identifier "Configured Monitor"
EndSection

Section "Screen"
 Identifier "Default Screen"
 Monitor "Configured Monitor"
 Device "Configured Video Device"
EndSection

-- NITHING ELSE!!
Bye

[This is an automated message]

Hi ben-factsalive,

Please attach the output of `lspci -vvnn` too.

attached is output of lspci --vvnn

My Thinkpad X40 also suffers from this issue. It seems to actually be causing problems; every so often my screen will just go blank, and there is no way to fix it without a reboot. Things in the background still work fine - for example, if I'm watching a movie when it happens, the movie sound continues to play.

I also observe the same issue on my Thinkpad X40. The Intel driver version is 2.5.1 with mesa3d 7.2 and xorg 7.4. This is not on an Ubuntu system, which I think would indicate that the issue is not distribution specific, but rather indicates a bug in the driver.

Seem to have a similar issue on a Compaq M2031AP

The "screen suddenly goes blank" issue and the underruns are probably related, since the pipe will eventually just stop sending data if it gets too many underruns. This looks very similar to the issue in upstream https://bugs.freedesktop.org/show_bug.cgi?id=19304, there's a patch available for testing in https://bugs.freedesktop.org/attachment.cgi?id=24375.

Is this still an issue on Jaunty? We're putting a lot of effort into the -intel driver for the upcoming release, and we'd like to send your bug upstream if possible. But first, we need to collect more information. Please report whether the card works in Jaunty, and if not, give the new 2.7.0 driver a shot. It can be found here: https://edge.launchpad.net/~ubuntu-x-swat/+archive/x-updates/

Thanks!

Many thanks Andrew,
I've resolved my problems installing as new Jaunty! (without any other driver)
No problems also about a flickering noise opening firefox at first time: the new Jaunty seems very good and stable also for my very old Fuji Lifebook C 1020.
Bye, Dausto.

> Date: Sat, 9 May 2009 06:18:58 +0000
> From: <email address hidden>
> To: <email address hidden>
> Subject: [Bug 304981] Re: [i855] Xorg errors and warnings for intel 855GM
>
> Is this still an issue on Jaunty? We're putting a lot of effort into the
> -intel driver for the upcoming release, and we'd like to send your bug
> upstream if possible. But first, we need to collect more information.
> Please report whether the card works in Jaunty, and if not, give the new
> 2.7.0 driver a shot. It can be found here:
> https://edge.launchpad.net/~ubuntu-x-swat/+archive/x-updates/
>
> Thanks!
>
> ** Changed in: xserver-xorg-video-intel (Ubuntu)
> Status: Confirmed => Incomplete
>
> ** Tags added: high-cpu
>
> --
> [i855] Xorg errors and warnings for intel 855GM
> https://bugs.launchpad.net/bugs/304981
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in “xserver-xorg-video-intel” source package in Ubuntu: Incomplete
>
> Bug description:
> Binary package hint: xserver-xorg-video-intel
>
> lsb_release -rd
> Description: Ubuntu 8.10
> Release: 8.10
>
> lspci |grep VGA
> 00:02.0 VGA compatible controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)
>
> xserver-xorg-video-intel: 2:2.4.1
>
> xorg.conf:
>
> Section "Device"
> Identifier "Configured Video Device"
> EndSection
>
> Section "Monitor"
> Identifier "Configured Monitor"
> EndSection
>
> Section "Screen"
> Identifier "Default Screen"
> Monitor "Configured Monitor"
> Device "Configured Video Device"
> EndSection
>
>
> Errors:
>
> (EE) intel(0): underrun on pipe B!
> (EE) No input driver/identifier specified (ignoring)
> (EE) config/hal: NewInputDeviceRequest failed
> (EE) intel(0): tried to update DSPARB with both planes enabled!
> (EE) intel(0): tried to update DSPARB with both planes enabled!
> (EE) intel(0): tried to update DSPARB with both planes enabled!
> (EE) intel(0): tried to update DSPARB with both planes enabled!
> (EE) intel(0): underrun on pipe B!
> (EE) intel(0): tried to update DSPARB with both planes enabled!
> (EE) intel(0): underrun on pipe B!
> (EE) intel(0): underrun on pipe B!
> (EE) intel(0): underrun on pipe B!
> (EE) intel(0): underrun on pipe B!
> (EE) intel(0): tried to update DSPARB with both planes enabled!
> (EE) intel(0): tried to update DSPARB with both planes enabled!
>
> Warnings:
>
> (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
> (WW) intel(0): Bad V_BIOS checksum
> (WW) intel(0): Register 0x61200 (PP_STATUS) changed from 0xc0000008 to 0xd0000009
> (WW) intel(0): PP_STATUS before: on, ready, sequencing idle
> (WW) intel(0): PP_STATUS after: on, ready, sequencing on
> (WW) intel(0): Register 0x71024 (PIPEBSTAT) changed from 0x80000202 to 0x00000202
> (WW) intel(0): PIPEBSTAT before: status: FIFO_UNDERRUN VSYNC_INT_STATUS...

Glad to hear that, Dausto!

Can we get the fix confirmed by the original reporter as well? That would be ackdesha. Or if others using the 855gm card can confirm the fix we'll go ahead and close the bug. Thanks everyone for the help making Ubuntu even better.

Attached Xorg log after upgrade to Jaunty on 20090511. Seems to resolve original error messages I noticed.

Thanks for letting us know the issue is resolved.