| Summary: | External monitor not being driven correctly | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Product: | xorg | Reporter: | Orion Poplawski <orion> | ||||||
| Component: | Driver/Radeon | Assignee: | xf86-video-ati maintainers <xorg-driver-ati> | ||||||
| Status: | RESOLVED NOTABUG | QA Contact: | Xorg Project Team <xorg-team> | ||||||
| Severity: | normal | ||||||||
| Priority: | medium | ||||||||
| Version: | git | ||||||||
| Hardware: | x86 (IA32) | ||||||||
| OS: | Linux (All) | ||||||||
| Whiteboard: | |||||||||
| i915 platform: | i915 features: | ||||||||
| Attachments: |
|
||||||||
Created attachment 11332 [details] [review] X log This is the X log from latest git driver. Created attachment 11333 [details]
x log
This is the X log from the 6.6 version that works.
can you attach the output of xrandr? Well, it's currently disabled in the xorg.conf. $ xrandr Xlib: extension "RANDR" missing on display ":0.0". RandR extension missing (In reply to comment #4) > Well, it's currently disabled in the xorg.conf. > any reason why? It looks like the edid from your monitor specifies 1024x768 as it's preferred mode. you can use xrandr to change to the larger mode: xrandr --output VGA-0 --mode 1600x1200 if you enable the extension. (In reply to comment #5) > (In reply to comment #4) > > Well, it's currently disabled in the xorg.conf. > > > > any reason why? It looks like the edid from your monitor specifies 1024x768 as http://www.ittvis.com/services/techtip.asp?ttid=4228 > it's preferred mode. you can use xrandr to change to the larger mode: > xrandr --output VGA-0 --mode 1600x1200 > if you enable the extension. > Where do you see 1024x768 listed as the preferred mode? And I shouldn't need to force changes with xrandr - this worked previously with the same config on the old driver. (In reply to comment #6) > (In reply to comment #5) > > (In reply to comment #4) > > > Well, it's currently disabled in the xorg.conf. > > > > > > > any reason why? It looks like the edid from your monitor specifies 1024x768 as > > > http://www.ittvis.com/services/techtip.asp?ttid=4228 Is that required for your setup? It looks like it might be nvidia specific. > > Where do you see 1024x768 listed as the preferred mode? And I shouldn't need > to force changes with xrandr - this worked previously with the same config on > the old driver. > The old driver ignored what the monitor's preferred mode choice and just took the largest supported mode. You can either manually change it with xrandr or add a monitor section and link it to the VGA-0 output and override with your own preferred mode. I'm closing this "NOTABUG", though I suspect the shift away from maximum resolution to "preferred" resolution will catch a number of people off guard. |
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.
With the transition from 6.6 to 6.7 (including lastest git) the external monitor connected to my laptop while in dock is not driven correctly. I end up with 1024x768 instead of 1600x1200. xorg.conf: Section "ServerLayout" Identifier "Default Layout" Screen 0 "Screen0" 0 0 InputDevice "Keyboard0" "CoreKeyboard" EndSection Section "InputDevice" Identifier "Keyboard0" Driver "kbd" Option "XkbModel" "pc105" Option "XkbLayout" "us" EndSection Section "Device" Identifier "Videocard0" Driver "radeon" EndSection Section "Screen" Identifier "Screen0" Device "Videocard0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection Section "Extensions" Option "XEVIE" "Enable" EndSection Section "ServerFlags" Option "RandR" "false" Option "Xinerama" "false" EndSection