Ubuntu
xserver-xorg-video-intel package

blurry-dancing fonts on 855GM with intel 2.6.x

Bug #349113 reported by diegoe on 2009-03-26

This bug report is a duplicate of: Bug #316588: [i855] Strange rendering of some letters with driver version >2.4.x. Edit Remove

Affects		Status	Importance	Assigned to	Milestone
	xserver-xorg-video-intel (Ubuntu)	New	Undecided	Unassigned
	Jaunty	New	Undecided	Unassigned

Bug Description

see attached screenshot. Problem is present in intel driver since 2.5.x, dissapeared on recent gits (at least right now in 78a60e1b and for some weeks already).

Revision history for this message

diegoe (diegoe-deactivatedaccount-deactivatedaccount) wrote on 2009-03-26:

bolding.png Edit (23.3 KiB, image/png)

Revision history for this message

diegoe (diegoe-deactivatedaccount-deactivatedaccount) wrote on 2009-03-27:

0001-Remove-logical-context-setup.patch Edit (2.4 KiB, text/x-diff)

I git bisected to this commit:

From 45f45c73469f1bd46a1b6fb206f2e9e5e4fd66b3 Mon Sep 17 00:00:00 2001
From: Eric Anholt <email address hidden>
Date: Mon, 29 Dec 2008 11:26:11 -0800
Subject: [PATCH] Remove logical context setup.

This should be a noop. If it wasn't a noop, it means that on pre-g33 chipsets
we were spamming some data into a page of system memory because we used a
virtual instead of a physical address. It was also supposed to not work when
we submit it from a batchbuffer, as we have been doing for some time now.
This code has existed since about the beginning of the driver's existence,
with no justification.

Checking out to the previous commit (3544bbe22d8cf2640289e1e4febe755a47f26631) produces a blurry fonts build.
From 45f45c73469f1bd46a1b6fb206f2e9e5e4fd66b3 ahead, the driver works correctly.

I'm attaching the patches as produced by git.

Revision history for this message

diegoe (diegoe-deactivatedaccount-deactivatedaccount) wrote on 2009-03-27: