Bug 835789
| Summary: | Fedora 17 on Dell E6420 laptop does not detect external dvi ports on docking station | ||||||
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| Product: | [Fedora] Fedora | Reporter: | Tero Hiekkalinna <tero.hiekkalinna> | ||||
| Component: | xorg-x11-drv-nouveau | Assignee: | Ben Skeggs <bskeggs> | ||||
| Status: | CLOSED NOTABUG | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | high | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 17 | CC: | airlied, ajax, azmeuk, bskeggs | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2012-06-27 07:07:04 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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This is not a bug, but the unfortunate expected behaviour of a great deal of Optimus systems currently. Your manufacturer has *not* wired up the external outputs to the Intel GPU in your laptop, only the NVIDIA GPU can drive them. From the looks of your kernel log, Nouveau has managed to detect a display at some point (but it won't be used because X is using the intel card), and the NVIDIA BIOS tables indicate the NVIDIA GPU can actually drive the laptop panel too. You may be in luck if you check the system bios setup for a way to disable Optimus mode, and use just the NVIDIA GPU. If it doesn't, you're out of luck until some new xserver work lands that will allow proper support for multi-GPU systems. I just disabled Optimus from the BIOS and Dual DVI works great! Thank you so much for your help! Hi. I have the same issue with a Latitude E6520, and the same video card. Do you use the nouveau driver, or proprietary one ? |
Created attachment 594694 [details] /var/log/messages & /var/log/Xorg.0.log & /var/log/Xorg.0.log Description of problem: Fedora 17 on Dell E6420 laptop (Quadro NVS 4200M video card) does not detect external dvi ports on docking station. Only VGA port works. Version-Release number of selected component (if applicable): Epoch : 1 Version : 0.0.16 Release : 35.20120306gitf5d1cd2.fc17 How reproducible: Install fresh copy of Fedora 17 x86_64 into Dell E6420 laptop Steps to Reproduce: 1. Install fresh copy of Fedora 17 x86_64 into Dell E6420 laptop 2. update system with yum (update date 26/6/2012) & shutdown 3. Put laptop to docking station (EURO2 Advanced) 3. Start Fedora Actual results: DVI ports (two of them) does not work on docking station (Dell and Samgsung LCD screen are connected to the ports), only VGA port in docking station works. Expected results: DVI ports should work and xrandr should list them. Additional info: xrandr lists: LVDS2 connected 1600x900+0+0 (normal left inverted right x axis y axis) 310mm x 174mm 1600x900 60.1*+ 40.3 1024x768 60.0 800x600 60.3 56.2 640x480 59.9 VGA2 connected 1920x1200+0+0 (normal left inverted right x axis y axis) 518mm x 324mm 1920x1200 60.0*+ 1600x1200 60.0 1680x1050 60.0 1280x1024 75.0 60.0 1440x900 75.0 59.9 1280x960 60.0 1280x800 59.8 1152x864 75.0 1024x768 75.1 70.1 60.0 832x624 74.6 800x600 72.2 75.0 60.3 56.2 640x480 72.8 75.0 66.7 60.0 720x400 70.1 lspci -v output and VGA-sections: 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell Device 0493 Flags: bus master, fast devsel, latency 0, IRQ 44 Memory at e5400000 (64-bit, non-prefetchable) [size=4M] Memory at c0000000 (64-bit, prefetchable) [size=256M] I/O ports at 5000 [size=64] Expansion ROM at <unassigned> [disabled] Capabilities: <access denied> Kernel driver in use: i915 01:00.0 VGA compatible controller: nVidia Corporation GF108 [Quadro NVS 4200M] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Dell Device 1493 Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at e4000000 (32-bit, non-prefetchable) [size=16M] Memory at d0000000 (64-bit, prefetchable) [size=256M] Memory at e0000000 (64-bit, prefetchable) [size=32M] I/O ports at 4000 [size=128] Expansion ROM at e5000000 [disabled] [size=512K] Capabilities: <access denied> Kernel driver in use: nouveau