Slackware 13 with a Belkin KVM switch

atri · 11-02-2009, 02:18 PM

Hey all,

I've just upgraded to Slackware 13, so I'm still getting used to this whole "no-xorg.conf" setup. I've also just added a Belkin F1D102U USB KVM switch. All works well, except:

* On the Slack 13 box, the video is "flickery" - that's the only word I can use to describe it. I'm using a flat panel (LCD) an it looks to me like the timing is off. The other system (yes, it's Windows) works just fine. Windows reports that it's driving the monitor at 60Hz whereas Linux reports 50, although Linux works with no flicker without the switch at 50.

* Every time I switch, my keyboard layout is reset to EN-US! This seems to be because the switch essentially "unplugs" the keyboard and mouse from the inactive box and "plugs" them into the active one. Is there any way to tell X (or XFCE) to use EN-UK? I've already set this as the default in the XFCE settings manager.

If anyone has any ideas, I'd appreciate it!

Cheers,

Atri

brianL · 11-02-2009, 04:30 PM

I haven't got a KVM switch, so I don't know whether this will work, but when I ran xorgsetup (as root, at runlevel 3) it generated an xorg.conf after asking things like keyboard layout, etc.

atri · 11-02-2009, 05:25 PM

Yeah, I tried that - must have taken a wrong option - X didn't start. Will try some more tomorrow. Things are further complicated cos I'm using the nVidia binary driver - and I think it must have written an xorg.conf at some point.

Anyways, sleep solves many problems :-)

Atri

brianL · 11-03-2009, 03:59 AM

Yes, the nVidia driver writes its own xorg.conf (if you want it to), and moves the old one to xorg.conf.backup.

atri · 11-03-2009, 08:00 AM

OK, using xorgsetup (and adding the VertRefresh line) my xorg.conf is now:

Code:

Section "ServerLayout"
	Identifier     "X.org Configured"
	Screen      0  "Screen0" 0 0
	InputDevice    "Mouse0" "CorePointer"
	InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
	ModulePath   "/usr/lib/xorg/modules"
	FontPath     "/usr/share/fonts/local"
	FontPath     "/usr/share/fonts/TTF"
	FontPath     "/usr/share/fonts/OTF"
	FontPath     "/usr/share/fonts/Type1"
	FontPath     "/usr/share/fonts/misc"
	FontPath     "/usr/share/fonts/CID"
	FontPath     "/usr/share/fonts/75dpi/:unscaled"
	FontPath     "/usr/share/fonts/100dpi/:unscaled"
	FontPath     "/usr/share/fonts/75dpi"
	FontPath     "/usr/share/fonts/100dpi"
	FontPath     "/usr/share/fonts/cyrillic"
EndSection

Section "Module"
	Load  "glx"
	Load  "extmod"
	Load  "dri2"
	Load  "dbe"
	Load  "dri"
EndSection

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "kbd"
	Option       "XkbModel"  "pc104"
	Option       "XkbLayout"  "gb(extd)"
EndSection

Section "InputDevice"
	Identifier  "Mouse0"
	Driver      "mouse"
	Option	    "Protocol" "auto"
	Option	    "Device" "/dev/input/mice"
	Option	    "ZAxisMapping" "4 5 6 7"
EndSection

Section "Monitor"
	Identifier   "Monitor0"
	VertRefresh  60
	VendorName   "Monitor Vendor"
	ModelName    "Monitor Model"
EndSection

Section "Device"
	Identifier  "Card0"
	Driver      "nvidia"
	VendorName  "Unknown Vendor"
	BoardName   "Unknown Board"
	BusID       "PCI:1:0:0"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Card0"
	Monitor    "Monitor0"
	DefaultDepth 24
	SubSection "Display"
		Viewport   0 0
		Depth     1
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     4
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     8
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     15
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     16
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     24
	EndSubSection
EndSection

However, still no joy - the screen still reports 50Hz and the keyboard layout is still lost.

My X log fills up with entries like the following at every switch:

Code:

(II) config/hal: Adding input device Logitech USB Receiver
(**) Logitech USB Receiver: always reports core events
(**) Logitech USB Receiver: Device: "/dev/input/event6"
(II) Logitech USB Receiver: Found 20 mouse buttons
(II) Logitech USB Receiver: Found x and y relative axes
(II) Logitech USB Receiver: Found scroll wheel(s)
(II) Logitech USB Receiver: Found keys
(II) Logitech USB Receiver: Configuring as mouse
(II) Logitech USB Receiver: Configuring as keyboard
(**) Logitech USB Receiver: YAxisMapping: buttons 4 and 5
(**) Logitech USB Receiver: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
(II) XINPUT: Adding extended input device "Logitech USB Receiver" (type: KEYBOARD)
(**) Option "xkb_rules" "evdev"
(**) Option "xkb_model" "evdev"
(**) Option "xkb_layout" "us"
(**) Option "xkb_options" "terminate:ctrl_alt_bksp"
(**) Logitech USB Receiver: (accel) keeping acceleration scheme 1
(**) Logitech USB Receiver: (accel) filter chain progression: 2.00
(**) Logitech USB Receiver: (accel) filter stage 0: 20.00 ms
(**) Logitech USB Receiver: (accel) set acceleration profile 0
(II) Logitech USB Receiver: initialized for relative axes.

So the question is, how do I get it to not load the "us" layout? It's set to uk in the conf (see above) but that's being ignored for subsequent "plugs".

I'm going to try starting only my slack box - the monitor settings work fine when no KVM is used and I'm wondering if Windoze is setting some kind of mode or other. Maybe I'll also tell windows to use 50Hz...

Cheers,

Atri

atri · 11-03-2009, 08:28 AM

Just a quick update. The screen flicker subsides after 30 mins or so (unless ofc I switch back to 'doze). Windows (naturally) knows nothing about using 50Hz with my monitor (even with no KVM).

So I'm still lost.

Cheers,

Atri

jl1076 · 11-13-2009, 08:35 AM

hi all,

similar issue. slaceware 13.0 with Raritan KVM, X pointer JUMPS to the right horizontally (2-3 times from center to right edge of the screen) using Microsoft mouse scroll wheel.

X pointer works perfectly WITHOUT Raritan KVM.

same hardware, older slacewakre 12.2, 12.0, 10.1, 9.1 and before did not have this problem. only happens on 13.0

jl