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Tasklist

FS#40949 - [xf86-video-intel] upgrade to 2.99.912-1 breaks font rendering on dual screen setup

Attached to Project: Arch Linux
Opened by W Len (wlen) - Monday, 23 June 2014, 12:37 GMT
Last edited by Laurent Carlier (lordheavy) - Tuesday, 05 August 2014, 10:51 GMT
Task Type Bug Report
Category Packages: Extra
Status Closed
Assigned To Jan de Groot (JGC)
Andreas Radke (AndyRTR)
Laurent Carlier (lordheavy)
Architecture x86_64
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 3
Private No

Details

Description:

After the upgrade of xf86-video-intel from 2.99.911-2 -> 2.99.912-1, I'm getting font rendering glitches on my dual screen setup. See attachments for the glitches; pieces of text disappear in certain applications (Claws-mail, LibreOffice, Gvim), sometimes re-appearing when scrolling. The problem only manifests itself after switching to a dual-screen setup using xrandr. I use:

xrandr --output VGA1 --auto --output LVDS1 --right-of VGA1

The problem appears on both screens. Switching to a single-screen setup using xrandr fixes the problem. Downgrading to 2.99.911-2 also solves the problem.

See also: https://bbs.archlinux.org/viewtopic.php?id=183152

This task depends upon

Closed by  Laurent Carlier (lordheavy)
Tuesday, 05 August 2014, 10:51 GMT
Reason for closing:  Fixed
Additional comments about closing:  xf86-video-intel-2.99.914-3
Comment by vincent (humhumhum) - Friday, 27 June 2014, 08:30 GMT
Same problem here, the icon titles are not displayed until I select the icon. And as soon as I change the size of the font (with settings/Desktop/icons/use_custom_font_size) they disappear again. Confirmation that the bug is linked to a dual screen display, and the previous intel driver doesn't have it.
the display controller is : Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)

Btw, the problem does NOT exist with my samsung laptop (NP900x4c) with :
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
Comment by vincent (humhumhum) - Wednesday, 16 July 2014, 07:15 GMT
problem still exists with xf86-video-intel-2.99.912-2-x86_64.pkg.tar.xz
Comment by Barius Drubeck (barius) - Thursday, 31 July 2014, 00:35 GMT
Have been breaking my head on this for a couple of months now, problem still exists with 2.99.914-1 on my HP nx6110 with Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller (rev 03).

Font rendering works fine on either display LVDS1 or VGA1 with the other off, or if they both display the same screen area. As soon as I put one display --output VGA1 --right-of LVDS1 the fonts become invisible.

Some fonts are affected, others not. It appears to be all scalable fonts or possibly only all ttf fonts that become invisible. Indeed libreoffice becomes unusable exactly like the first attachment of original report. Same problem in xterm with xterm*faceName: resource.
Comment by Laurent Carlier (lordheavy) - Friday, 01 August 2014, 12:43 GMT
Please check with xf86-video-intel-2.99.914-3
Comment by W Len (wlen) - Tuesday, 05 August 2014, 10:43 GMT
Seems fixed in xf86-video-intel-2.99.914-3

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