I have a similar problem since 2014. https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1271704
Toshiba Satellite S75-A7334, i7-4700MQ. *-display descrição: VGA compatible controller produto: 4th Gen Core Processor Integrated Graphics Controller fabricante: Intel Corporation ID físico: 2 informações do barramento: pci@0000:00:02.0 versão: 06 largura: 64 bits clock: 33MHz capacidades: msi pm vga_controller bus_master cap_list rom configuração: driver=i915 latency=0 recursos: irq:45 memória:b2000000-b23fffff memória:a0000000-afffffff porta de E/S:6000(tamanho=64) Ubuntu 15.10. Linux 3.13.0-37-generic #64-Ubuntu intel-linux-graphics-installer_1.2.1-0intel2_amd64.deb filename: /lib/modules/3.13.0-37-generic/kernel/drivers/gpu/drm/i915/i915.ko license: GPL and additional rights description: Intel Graphics author: Tungsten Graphics, Inc. license: GPL and additional rights srcversion: 594AF6054E9069A37423B0F vermagic: 3.13.0-37-generic SMP mod_unload modversions signer: Magrathea: Glacier signing key sig_key: 2C:B1:13:3B:35:F9:5A:9E:24:DE:AB:EE:B1:2B:A4:49:BC:BA:BB:C9 Almost of time the screen turns grey colors and stops flickering. Then, I have to try change screen resolution many times until colors are back, and the flickering. I have tried several screen resolutions and frequencies, including the configuration that works fine with graphic Gallium 0.4 on llvmpipe (LLVM 3.6, 256 bits), that I got when I boot in recovery mode, choose failsafeX and I stop the process with CTRL+C just after the X error. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1522922 Title: Screen flickering in Intel i915 driver To manage notifications about this bug go to: https://bugs.launchpad.net/nouveau/+bug/1522922/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp