3 Replies Latest reply on May 4, 2015 8:52 AM by allan_intel

    Dual monitor problem with HD4000 on centos 6.5

    zhufeng

      I got  a ASUS laptop model B400A, with intel ivy bridge i5 3317u processor and hd4000 graphics.

       

      Recently I installed centos 6.5 64bit and dual monitor fail to use.

       

      A externl LCD monitor was connected via HDMI port to the laptop, when I boot centos without external monitor, everything just fine, and after I log in to the OS and then connect the HDMI port , everythig just worked perfectly.

       

      But, if I boot the os with HDMI port connected, the log in screen didn't show up , laptop internal screen is black and only wallpaper show up on the external moniter, so I can't login to OS . It seems that internal screen didn't configured properly, but I don't know how to configure it .

       

       

      [root@localhost ~]# lsb_release -a

      LSB Version:    :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch

      Distributor ID: CentOS

      Description:    CentOS release 6.6 (Final)

      Release:        6.6

      Codename:       Final

       

      [root@localhost ~]# uname -a

      Linux localhost.localdomain 2.6.32-504.16.2.el6.x86_64 #1 SMP Wed Apr 22 06:48:29 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

       

      [root@localhost ~]# lspci

      00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)

      00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)

      00:04.0 Signal processing controller: Intel Corporation 3rd Gen Core Processor Thermal Subsystem (rev 09)

      00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)

      00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)

      00:19.0 Ethernet controller: Intel Corporation 82579V Gigabit Network Connection (rev 04)

      00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)

      00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)

      00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)

      00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)

      00:1c.4 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 5 (rev c4)

      00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)

      00:1f.0 ISA bridge: Intel Corporation HM77 Express Chipset LPC Controller (rev 04)

      00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)

      00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)

      00:1f.6 Signal processing controller: Intel Corporation 7 Series/C210 Series Chipset Family Thermal Management Controller (rev 04)

      02:00.0 Network controller: Intel Corporation Centrino Advanced-N 6235 (rev 24)

      03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader (rev 01)

       

       

       

      Anybody can help?