Red Hat Bugzilla – Bug 486612
External monitor doesn't work on ATI mobility radeon U1 (IGP 320M)
Last modified: 2018-04-11 09:10:20 EDT
Description of problem:
Installed Fedora 10 on a Compaq Presario 2100 and updated to last packages.
The video card is functioning correctly on the integrated LCD monitor, but the external VGA output doesn't work.
The integrated video is an ATI Radeon Mobility U1 (IGP320M)
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Connect an external CRT or LCD monitor
The notebook "feels" the external monitor connected (the screen resolution utility shows both the integrated LCD and the external monitor), but the screens shows "no input signal"
The external monitor should work
Tried 3 different LCD monitors and a CRT monitor but obtained the same result.
Errata: the version of xorg-x11-drv-ati is 6.10.0-2
Thanks for the bug report. We have reviewed the information you have provided above, and there is some additional information we require that will be helpful in our diagnosis of this issue.
Please attach your X server config file (/etc/X11/xorg.conf, if available) and X server log file (/var/log/Xorg.*.log) to the bug report as individual uncompressed file attachments using the bugzilla file attachment link below.
We will review this issue again once you've had a chance to attach this information.
Thanks in advance.
Created attachment 333330 [details]
Here's the X log.
There's no config file in /etc/X11
01:05.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility U1 (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Pavilion ze4400 builtin Video
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B+ DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 10
Region 0: Memory at e0000000 (32-bit, prefetchable) [size=256M]
Region 1: I/O ports at 9000 [size=256]
Region 2: Memory at d0100000 (32-bit, non-prefetchable) [size=64K]
[virtual] Expansion ROM at d0120000 [disabled] [size=128K]
Capabilities:  AGP version 2.0
Status: RQ=48 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW- AGP3- Rate=x1,x2,x4
Command: RQ=16 ArqSz=0 Cal=0 SBA+ AGP+ GART64- 64bit- FW- Rate=x4
Capabilities:  Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel modules: radeon, radeonfb
Any resolution to this?
I have a similar problem on F11
Exactly as describe in bug after the login to Gnome.
Prior to login I can see everything the laptop displays on the external monitor, once I login it goes black.
After fiddling with the different setting in Display Settings for the external monitor it suddenly starts working in Mirrored Mode. I believe what gets it working is the Left mode which I cancel then set to mirrored mode.
The lay out prior to mirrored mode is laptop on the Right external on the Left.
I have the xorg.config file
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