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Bug#780363: linux: Display chunks with xorg intel driver with Accel & when using swap space



Source: linux
Version: 3.16.7-ckt7-1
Severity: normal

Dear Maintainer,

On the debian-x list I've been suggested to report this bug toward the linux
kernel.

I have some display chunks as soon as I use some of my swap space. I noticed it
first with a VirtualBox VM as it generally needs space from my swap partition.
But it also appears when compiling programs as soon as it requires the swap
partition.

I'm on an up-to-date jessie (kernel 3.16.7-ckt7-1 x86_64) and my Xorg uses
intel driver.
The issue appears with default config (no xorg.conf, ie. driver intel, with DRI
& Accel).
But I found this workaround : using either of these options in xorg.conf hides
the issue
    Option        "NoAccel"     "on"
    Option        "AccelMethod" "off"

Using driver fbdev is another workaround

The other AccesMethods "UXA, SNA, blt" and DRI=off won't workaround the issue.

BTW: Compiling & installing the last version of xserver-xorg-video-intel from
experimental (2:2.99.917-1~exp1) doesn't fix the issue.

KR



-- System Information:
Debian Release: 8.0
  APT prefers testing
  APT policy: (991, 'testing'), (90, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.16.0-4-amd64 (SMP w/2 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Attachment: display_chunks.png
Description: PNG image


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