640x480 only available resolution on Intel 82845G
I have a Dell Optiplex SX260 with a 1702FP display (Intel 82845G integrated video) and installed Ubuntu 6.06 final. The only resolution I can get is 640x480, even though xorg.conf appears to be set up correctly, with appropriate modes, etc. (output from ddcprobe and xresprobe listed below), and the agpgart module appears to be properly loaded.
I am almost certain that the problem is that the driver seems to be unable to find any system memory, and is consequently constrained to run in less than 1MB of VRAM. I tried setting VideoRam in the driver section to something like 32000, but then the server refused to start. (The system has 1GB of RAM, so a shortage of system memory is not the problem.)
This really appears to be a driver bug; I'm just shocked that no one else has run into this yet; there must be a gazillion systems out there with 82845G video.
administrator@
id: DELL 1702FP
res: 1024x768 800x600 720x400 640x480
freq: 30-80 56-76
disptype: crt
depth: 16
administrator@
vbe: VESA 3.0 detected.
oem: Intel(r)
vendor: Intel Corporation
product: Intel(r)
memory: 832kb
mode: 1280x1024x256
mode: 1280x1024x64k
mode: 1280x1024x16m
mode: 1024x768x256
mode: 1024x768x64k
mode: 1024x768x16m
mode: 640x480x16m
mode: 800x600x64k
mode: 800x600x16m
mode: 132x25 (text)
mode: 132x43 (text)
mode: 132x50 (text)
mode: 132x60 (text)
mode: 640x480x256
mode: 800x600x256
mode: 640x480x64k
edid:
edid: 1 3
id: 3007
eisa: DEL3007
serial: 41353151
manufacture: 50 2001
input: sync on green, analog signal.
screensize: 34 27
gamma: 2.400000
dpms: RGB, active off, suspend, standby
timing: 720x400@70 Hz (VGA 640x400, IBM)
timing: 640x480@60 Hz (VGA)
timing: 640x480@75 Hz (VESA)
timing: 800x600@60 Hz (VESA)
timing: 800x600@72 Hz (VESA)
timing: 800x600@75 Hz (VESA)
timing: 1024x768@87 Hz Interlaced (8514A)
timing: 1024x768@75 Hz (VESA)
dtiming: 1280x1024@70
monitorserial: 8G1521CAA51Q
monitorname: DELL 1702FP
monitorrange: 30-80, 56-76
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- Solved by:
- Patrick Goetz
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