Re: F30: latest kernel no external monitor

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On 8/21/19 3:08 PM, Gianluca Cecchi wrote:
> On Tue, Aug 20, 2019 at 11:55 AM Gianluca Cecchi <gianluca.cecchi@xxxxxxxxx
> <mailto:gianluca.cecchi@xxxxxxxxx>> wrote:
>
>
>     Thanks for your answer, but what you write is clear and is for system wide
>     messaging/logging.
>     I don't want to bloat with all logs, but only the ones related to Xwayland so that
>     it can be easier to narrow the reason why the external monitor connection is not
>     detected with the latest kernel...
>     BTW: also in journal when thing work ok I seem not to find any particular
>     information about display settings change when I connect external monitor, so I
>     don't know what to compare with....
>
>     Gianluca
>
> Some more info.
> Also after today updates and new kernel 5.2.9-200.fc30 the problem persists
> Some info about hw involved:
> laptop Asus ZenBook Flip (model UX370UAR)
> monitor is DELL U2412M (not tried yet with other monitors)
> usb-c adapter is the default provided with notebook and has power, hdmi and usb
> adapter is recognized this way when connected to usb-c of notebook (no cable connected
> to hdmi yet):
>
> Aug 21 08:43:44 localhost.localdomain kernel: usb 1-1: new high-speed USB device number
> 4 using xhci_hcd
> Aug 21 08:43:44 localhost.localdomain kernel: usb 1-1: New USB device found,
> idVendor=2109, idProduct=2210, bcdDevice= 6.80
> Aug 21 08:43:44 localhost.localdomain kernel: usb 1-1: New USB device strings: Mfr=1,
> Product=2, SerialNumber=0
> Aug 21 08:43:44 localhost.localdomain kernel: usb 1-1: Product: USB2.0 Hub            
> Aug 21 08:43:44 localhost.localdomain kernel: usb 1-1: Manufacturer: VIA Labs, Inc.        
> Aug 21 08:43:44 localhost.localdomain kernel: hub 1-1:1.0: USB hub found
> Aug 21 08:43:44 localhost.localdomain kernel: hub 1-1:1.0: 4 ports detected
> Aug 21 08:43:44 localhost.localdomain kernel: usb 2-1: new SuperSpeed Gen 1 USB device
> number 3 using xhci_hcd
> Aug 21 08:43:44 localhost.localdomain kernel: usb 2-1: New USB device found,
> idVendor=2109, idProduct=0210, bcdDevice= 6.85
> Aug 21 08:43:44 localhost.localdomain kernel: usb 2-1: New USB device strings: Mfr=1,
> Product=2, SerialNumber=0
> Aug 21 08:43:44 localhost.localdomain kernel: usb 2-1: Product: USB3.0 Hub            
> Aug 21 08:43:44 localhost.localdomain kernel: usb 2-1: Manufacturer: VIA Labs, Inc.        
> Aug 21 08:43:44 localhost.localdomain kernel: hub 2-1:1.0: USB hub found
> Aug 21 08:43:44 localhost.localdomain kernel: hub 2-1:1.0: 1 port detected
> Aug 21 08:43:46 localhost.localdomain kernel: usb 1-1.2: new high-speed USB device
> number 5 using xhci_hcd
> Aug 21 08:43:47 localhost.localdomain kernel: usb 1-1.2: New USB device found,
> idVendor=2109, idProduct=0101, bcdDevice= 3.04
> Aug 21 08:43:47 localhost.localdomain kernel: usb 1-1.2: New USB device strings: Mfr=1,
> Product=2, SerialNumber=3
> Aug 21 08:43:47 localhost.localdomain kernel: usb 1-1.2: Product: USB 2.0 BILLBOARD    
>        
> Aug 21 08:43:47 localhost.localdomain kernel: usb 1-1.2: Manufacturer: VIA Technologies
> Inc.        
> Aug 21 08:43:47 localhost.localdomain kernel: usb 1-1.2: SerialNumber: 0000000000000001
>
> When I connect hdmi cable (monitor is powered on and waiting on connection) this happens:
> - kernels 5.2.8-200 and 5.2.9-200
> no new line in journal
> monitor goes into power save mode (something similar when wrong mode is tried or monitor
> not correctly detected...)
>
> - kernel 5.1.20-300.fc30.x86_64
> monitor is detected and previous known configuration applied, see here:
> https://drive.google.com/file/d/1aSzSPMgsdSuz6g3gm7-YTO80edZFb2Bn/view?usp=sharing
> In journal these lines added:
>
> Aug 21 08:57:49 localhost.localdomain kernel: Registered IR keymap rc-cec
> Aug 21 08:57:49 localhost.localdomain kernel: rc rc0: DP-1 as
> /devices/pci0000:00/0000:00:02.0/rc/rc0
> Aug 21 08:57:49 localhost.localdomain kernel: input: DP-1 as
> /devices/pci0000:00/0000:00:02.0/rc/rc0/input34
> Aug 21 08:57:49 localhost.localdomain systemd-logind[838]: Watching system buttons on
> /dev/input/event23 (DP-1)
>
> Thanks in advance and eventually I'm going to open bugzilla for this
>
>

Just an idea.

Is there a difference in the output of "lsmod" when run on the 5.2 v.s. 5.1 kernel?


-- 
If simple questions can be answered with a simple google query then why are there so many
of them?
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