I apologise for the length; I've tried to cover as much as I (vaguely)
understand. I hope I haven't left anything out.
I've just purchased an LCD panel, Dell S2209W, and am trying to get the
resolution sorted out. The device is rated for 1920x1080.
In System/Admin/Display, the hardware is set to
SIS 661/741/760 PCI/AGP or 662/761Gx PCIE VGA
In configure the Monitor Type:
Generic CRT 1024x768
I changed this to "Generic LCD 1920x1080", logged out and back in as
advised, and the display was now very blurry as well as stretched
horizontally. When I went back into Display settings, I see that it's
back at CRT 1024x768, which is odd considering the drastic change.
System/Preferences/Display showed "Monitor Unknown". Also (and I may be
showing serious ignorance here) do I need to set the refresh rate for an
LCD? I'm thinking no.
I backed up xorg.conf and added "1920x1080" to the modes section,
restarted X.
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1920x1080" "1024x768" "800x600" "720x400" "640x480"
EndSubSection
EndSection
The resolution looks good, however I'm seeing a lot of flicker. I came
across a site [1] that mentioned a limitation of the onboard SiS760 chip
that can lead to flicker. Maybe this is the problem but, given how
simple changing the resolution was, I'd like to see if there other
solutions. That site has a lot of information about my chipset and linux
but, frankly, my head is spinning. I have no idea if I *need* to install
a new driver and don't want to go this route blindly.
I then opened System/Admin/Display again and this time, the resolution
is set to 1152x864 (the highest it goes) and monitor type is still CRT
1024x768. So, now I don't know what to believe. I switched it back to
"Generic LCD 1920x1080" and, after logging back in, the resolution has
dropped again! Prefs/display shows 1280x854 @ 59Hz while Admin/display
shows 1152x864.
And, as if this wasn't enough to confuse me, my xorg.conf has no modes
line anymore!
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
I'm also pretty confused as to why there are 2 separate display config
panels in the first place.
Though this machine is not used for anything remotely
graphics-intensive, I understand that I may have to install a proper
video card to drive this panel. If that's the case--and it'll sort out
these issues--I'm fine with that.
FWIW, I've been seeing an intermittent issue[2] (since upgrading to F10)
where the display would be stretched vertically. I never did figure out
how to resolve this permanently and wonder if it's the graphics driver.
[1] http://www.winischhofer.eu/linuxsisvga.shtml
[2] http://osdir.com/ml/fedora-list/2009-02/msg02280.html
$ lspci | grep VGA
01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS]
661/741/760 PCI/AGP or 662/761Gx PCIE VGA Display Adapter
--
fedora-list mailing list
fedora-list@xxxxxxxxxx
To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
