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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Z97: Setting VGA to 1920x1200@60Hz causes "Configure crtc 0 failed" error"
href="https://bugs.freedesktop.org/show_bug.cgi?id=85346">85346</a>
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<th>Summary</th>
<td>Z97: Setting VGA to 1920x1200@60Hz causes "Configure crtc 0 failed" error
</td>
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<th>Product</th>
<td>xorg
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Driver/intel
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<th>Assignee</th>
<td>chris@chris-wilson.co.uk
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<th>Reporter</th>
<td>colin.e.uk@gmail.com
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
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<pre>Created <span class=""><a href="attachment.cgi?id=108259" name="attach_108259" title="TGZ containing dmesg, xorg.conf (modified) and Xorg.0.log">attachment 108259</a> <a href="attachment.cgi?id=108259&action=edit" title="TGZ containing dmesg, xorg.conf (modified) and Xorg.0.log">[details]</a></span>
TGZ containing dmesg, xorg.conf (modified) and Xorg.0.log
System environment:
-- chipset: Intel Z97
-- system architecture: 64-bit
-- xf86-video-intel: ?
-- xserver: xorg-server 2:1.16.1-1
-- mesa: ?
-- libdrm: 2.4.58-2
-- kernel:3.16-2-amd64
-- Linux distribution: SMP Debian 3.16.3-2 (2014-09-20) x86_64 GNU/Linux
-- Machine or mobo model: MSI Z97M-G43
-- Display connector: VGA
-- Monitor: Dell 2405FPW (24" 1920x1200)
Reproducing steps:
System is not picking up correct monitor resolutions via EDID. The only choices
offered are: 1024x768, 800x600, 848x480, 640x480 (all at 60Hz)
get-edid reports: "The EDID data should not be trusted as the VBE call failed"
1) Generate a new modeline with gtf
$ gtf 1920 1200 60
# 1920x1200 @ 60.00 Hz (GTF) hsync: 74.52 kHz; pclk: 193.16 MHz
Modeline "1920x1200_60.00" 193.16 1920 2048 2256 2592 1200 1201 1204 1242
-HSync +Vsync
2) Generate new Xorg.conf
Go to a new virtual terminal (as root).
$ service lightdm stop
$ Xorg -configure /etc/X11/xorg.conf.current
$ service lightdm start
$ cp /etc/X11//etc/X11/xorg.conf.current xorg.conf
3) Edit Xorg.conf to add new modeline (copy attached)
4) Restart Xorg again (as in step 2)
5) Attempt to set new mode
System sees newly defined mode-
$ xrandr --current
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 8192 x 8192
VGA1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x
0mm
1920x1200_60 60.00
1024x768 60.00*
800x600 60.32 56.25
848x480 60.00
640x480 59.94
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
HDMI3 disconnected (normal left inverted right x axis y axis)
Attempt to use new mode-
$ xrandr --output VGA1 --mode "1920x1200_60"
xrandr: Configure crtc 0 failed
Additional info:
Motherboard (MSI Z97M-G43) specifically states that the board supports up to
1920x1200@60Hz on the VGA port.
dmesg includes the following error-
[768761.630664] WARNING: CPU: 0 PID: 14759 at
/build/linux-P15SNz/linux-3.16.3/drivers/gpu/drm/i915/intel_display.c:9696
__intel_set_mode+0x131f/0x1560 [i915]()
(not sure if this is relevant)</pre>
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