Red Hat Bugzilla – Bug 215397
firstboot-1.4.23-1 doesn't work with Dell 1905FP (Analog) LCD
Last modified: 2018-04-11 14:49:05 EDT
The default monitor used by firstboot-1.4.23-1 for vesa driver has
(II) VESA(0): <default monitor>: Using default hsync range of 31.50-37.90 kHz
(II) VESA(0): <default monitor>: Using default vrefresh range of 50.00-70.00 Hz
It leads to "Cannot display this video mode" on LCD monitor. BTW, I have an
ATI Radeon X1600 PCI-E card.
Problem may be related to ATI Radeon X1600 PCI-E card, adding
to "Display" EndSubSection in /etc/X11/xorg.conf fixes the problem.
Shouldn't we be using the radeon driver here instead of vesa?
Radeon driver doesn't support ATI Radeon X1600:
01:00.0 VGA compatible controller: ATI Technologies Inc RV530 [Radeon X1600]
The best fix for this would be fixing up the ATI driver so it does support this
card. firstboot isn't doing anything special with X setup anymore since we are
trying to get auto-configuration in shape.
This should be working with the vesa driver in FC7 (1.3.0-5).