Arch Linux

Some more information about my machine:
my laptop is a lenovo thinkpad T420i

lspci information:
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b4)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4)
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b4)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 04)
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
0d:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 08)

In version 2.21.14-1 "sna" accelaration was made default in Arch, try changing it to "uxa" to see if it works.

Had some shutdown problem, and using this /etc/X11/xorg.conf.d/20-intel.conf file fixed my problem :

Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "AccelMethod" "uxa"
EndSection

This upstream report seems relevant - I have similar graphics corruption using chrome with some webpages and the workaround suggested above helps me avoid the problem - but the bug in the intel video package needs to be fixed since I believe that uxa will become obsoleted at some point.

The upstream report is at:
https://bugs.freedesktop.org/show_bug.cgi?id=66990

Change the Acceleration Method to be uxa works for me! Thanks.

That work to for me whit the same probles for the lightdm-gtk2-greeter
I think that 'sna' is not enought stable as Arch think when they enable it (or not well tested)

It is for sure not stable, that is why upstream hasn't made sna the default.
And the maintainers here don't want to say why they made this change. Why is this?

I have this issue too: https://twitter.com/kaihendry/status/367850111113523200

It's a bit of nuisance atm. I can live with it, if it means we are going to arrive in a better place for it.

According to the upstream report this is fixed in git master. Please wait for 3.0 driver release or use a late git snapshot. Or revert back to UXA.