Need a Pipe-A quirk for 1028:0139

[frankie]

Binary package hint: xserver-xorg-video-intel

laptop model: Dell Latitude D400
adding "ForceEnablePipeA" solved the problem
problem related to bug# 138256:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/138256

output of `lspci -vvnn | grep -A1 "VGA compat"`:

00:02.0 VGA compatible controller [0300]: Intel Corporation 82852/855GM Integrated Graphics Device [8086:3582] (rev 02) (prog-if 00 [VGA controller])
 Subsystem: Dell Latitude D400 [1028:0139]

[SRU]
Impact: Affects users of Dell D400 systems, causing crashes when vt switching. This is a well known bug that is fixed on a per-pciid basis using quirks, and are very safe for backport candidates.

Addressed: A quirk was prepared and sent upstream for review. It was accepted with one correction and deployed in the -intel 2.3.0 release; current git tree shows the quirk still present.

Patch: Attached below.

Test Case: On a Dell Latitude D400, attempt to do vt switches, and this should produce an Xserver crash.

Regression Potential: None. Quirks have been proven to be very safe in backports, and since they only target a very specific chip even if they are incorrect (which has only happened once so far), they only affect users of that exact chip.

[Bryce Harrington (bryce)]

I sent this quirk upstream and it was accepted and released for -intel 2.3.0 which we'll get in intrepid once we merge.

[Bryce Harrington (bryce)]

This seems quite safe to SRU. Here's the debdiff for hardy-proposed.

[Bryce Harrington (bryce)]

The debdiff as actually uploaded; just has some changelog cleanups.

[Martin Pitt (pitti)]

Accepted into -proposed, please test and give feedback here

[frankie (launchpad-greenradio)]

i noticed that you released the fix when i ran update-manager today. thank you!
does this mean, in case i ever need to do a re-install, 8.04.1 will have the fix out of the box?

[Martin Pitt (pitti)]

Thanks for testing. Indeed, 8.04.1 will ship with this updated package.

[Martin Pitt (pitti)]

Bryce, please apply the fixes from this SRU to Intrepid.

[Bryce Harrington (bryce)]

This fix was provided in 2.3.1 which I uploaded to Intrepid last week.

[Martin Pitt (pitti)]

This was copied to hardy-updates a while ago.