FYI... I've filed this as "Bug 958415" https://bugzilla.redhat.com/show_bug.cgi?id=958415 ________________________________________ From: Miner, Jonathan W (US SSA) Sent: Monday, April 29, 2013 14:39 To: Community support for Fedora users Subject: RE: Problem with external VGA ________________________________________ From: John Pilkington [J.Pilk@xxxxxxxxx] Sent: Monday, April 29, 2013 08:16 To: users@xxxxxxxxxxxxxxxxxxxxxxx Subject: Re: Problem with external VGA On 29/04/13 12:48, Miner, Jonathan W (US SSA) wrote: > I've got a Dell Precision M4600 laptop, running Fedora 17. Sometime > after kernel 3.7.9-104, the external VGA output no longer works. > > If I boot with 3.7.9-104,with my projector attached, it is recognized. > If I boot with 3.8.4-102, external VGA devices are not recognized. > > lspci: > 01:00.0 VGA compatible controller: nVidia Corporation GF108 [Quadro > 1000M] (rev a1) > > (I've tried running the driver from nVidia, but that has screen > rendering problems, with blocks of random data instead of my normal > background pic) > > - Jon > > /var/log/Xorg.0.log ought to show what's happening. Or 0 ... to 9. 'the driver from nvidia'? Which one? but perhaps you want to run nouveau? ------ The Xorg logs from the 3.7.9-104 kernel clearly show that the VGA is detected: [ 48.288] (II) NOUVEAU(0): Printing probed modes for output VGA-1 [ 48.288] (II) NOUVEAU(0): Output VGA-1 connected The Xorg logs from the 3.8.3-103 (and newer 3.8.4-102) kernels, show the driver believes the VGA is not connected: [ 46.357] (II) NOUVEAU(0): Output VGA-1 disconnected Starting to look like the driver was changed between 3.7 and 3.8 kernels? - Jon -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org