<div>Hi,</div><div><br></div><div>I have just setup a quite exotic system on my Arch Linux box at my office. I am running three screens on my Dell XPS 15 laptop. Two Samsung SyncMaster 2443 and one 24" Xerox. The Xerox is running directly on a DisplayPort output from my graphicscard (I use a DisplayPort -> DVI). The two Samsung are each running on a Plugable UGA-2K-A (USB to DVI adapter).</div>
<div><br></div><div>My problem is that when I turn on my box in the morning only the two Samsung screens turn on. The Xerox is all black but is detected by the system because I can drag windows to that screen. I just can't see them.</div>
<div><br></div><div>I found a fix for it but it is quite cumbersum. All the screens are running at 1920x1200. If I change the resolution on the Xerox to 1024x768 and then restart xorg then the screen works. If I then change it back to 1920x1200 and restart xorg again the screen still works. I therefore know that the xorg config files are correct but something is missing when the machine first starts.</div>
<div><br></div><div>I have attached my xorg config file (10-monitor.conf), the first log file I get from xorg when one screen is not working (Xorg.0.log.NoMain) and the log file when all screens are working (Xorg.0.log.ThreeMonitors).</div>
<div>I have also included the system data I think is relevant. </div><div><br></div><div><div>DAEMONS=(syslog-ng dbus networkmanager netfs cups avahi-daemon !pcspkr laptop-mode bluetooth crond)</div></div><div><br></div><div>
<div>[christian@faraday ~]$ lspci</div><div>00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 18)</div><div>00:01.0 PCI bridge: Intel Corporation Core Processor PCI Express x16 Root Port (rev 18)</div>
<div>00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 18)</div><div>00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06)</div>
<div>00:1a.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)</div><div>00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06)</div>
<div>00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 06)</div><div>00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 06)</div><div>
00:1c.3 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 4 (rev 06)</div><div>00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 06)</div><div>00:1c.5 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 6 (rev 06)</div>
<div>00:1d.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06)</div><div>00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a6)</div><div>00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 06)</div>
<div>00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 6 port SATA AHCI Controller (rev 06)</div><div>00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06)</div><div>
00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 06)</div><div>02:00.0 VGA compatible controller: nVidia Corporation Device 0df1 (rev a1)</div><div>02:00.1 Audio device: nVidia Corporation GF108 High Definition Audio Controller (rev a1)</div>
<div>04:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000</div><div>05:00.0 USB Controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 03)</div><div>09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)</div>
<div>ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 05)</div><div>ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 05)</div>
<div>ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 05)</div><div>ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 05)</div><div>ff:02.2 Host bridge: Intel Corporation Core Processor Reserved (rev 05)</div>
<div>ff:02.3 Host bridge: Intel Corporation Core Processor Reserved (rev 05)</div></div><div><br></div><div><div>[christian@faraday ~]$ dmesg | grep intel</div><div>intel_idle: MWAIT substates: 0x1120</div><div>intel_idle: v0.4 model 0x25</div>
<div>intel_idle: lapic_timer_reliable_states 0xffffffff</div><div>ACPI: acpi_idle yielding to intel_idle</div><div>intel ips 0000:00:1f.6: CPU TDP doesn't match expected value (found 25, expected 29)</div><div>intel ips 0000:00:1f.6: PCI INT C -> GSI 18 (level, low) -> IRQ 18</div>
<div>intel ips 0000:00:1f.6: failed to get i915 symbols, graphics turbo disabled</div><div>intel ips 0000:00:1f.6: IPS driver initialized, MCP temp limit 90</div><div>agpgart-intel 0000:00:00.0: Intel HD Graphics Chipset</div>
<div>agpgart-intel 0000:00:00.0: detected gtt size: 524288K total, 262144K mappable</div><div>agpgart-intel 0000:00:00.0: detected 65536K stolen memory, trimming to 32768K</div><div>agpgart-intel 0000:00:00.0: AGP aperture is 256M @ 0xd0000000</div>
<div>[drm:intel_dsm_platform_mux_info] *ERROR* MUX INFO call failed</div><div>[drm:intel_dsm_platform_mux_info] *ERROR* MUX INFO call failed</div><div>fb0: inteldrmfb frame buffer device</div><div>hda_intel: Disable MSI for Nvidia chipset</div>
<div>intel ips 0000:00:1f.6: i915 driver attached, reenabling gpu turbo</div></div><div><br></div><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><div>I think there perhaps is a problem with the way things are started during boot but can't really find the problem. Perhaps it has somethink to do with the Intel Driver. My system is updated today (11/03/2011) with the stable Arch Linux repo. I hope one of you guys has a suggestion about what to try.</div>
</div><div><br></div><div>Best Regards,</div><div>Christian Brædstrup</div>