Dell, ubuntu 10.4, Phillips 21"
Hi I am having trouble with a ubuntu 10.4 install, the problem is sometimes it detects the display, and changes to its native res (something like 2048x1560) however other times it doesn't and then default to 1024x768, this wouldn't be a problem if it just stuck with one all the time, but it seams to take liberties about when it chooses with res to go with, and as this is a pc for my parents, it is somewhat annoying, any ideas? Cheers Andrew (PS, its a fairly boring intel on board graphics chipset)
On Fri, May 7, 2010 at 2:34 PM, Andrew Crosby <electrogeek(a)gmail.com> wrote:
Hi
I am having trouble with a ubuntu 10.4 install, the problem is sometimes it detects the display, and changes to its native res (something like 2048x1560) however other times it doesn't and then default to 1024x768, this
1680x1050?
wouldn't be a problem if it just stuck with one all the time, but it seams to take liberties about when it chooses with res to go with, and as this is a pc for my parents, it is somewhat annoying, any ideas?
How are you cabled into the monitor from the PC? Any KVM switches in the way? DVI or VGA cables? DVI can be a "better" choice, as the monitor information is sent down the cables to the graphics board. (Hence why a KVM switch upsets the balance. VGA cables suffer even more, as the information can be sent through the cable, but it seems pot luck as to whether the monitor manufacturer and video card manufacturer decided to support that feature)
(PS, its a fairly boring intel on board graphics chipset)
How is the video RAM specified? Is it dynamically shared with Main memory. It can be beneficial to "fix" the amount of video ram used in the Xorg.conf (or equivalent) Failing all that, have you looked at /var/log/Xorg.0.log to see what error messages are coming out? Cheers, Warren.
Thanks for your reply, its just vga (its a crt monitor) and seams to detect correctly sometimes (i think this is where the problem may be). read the log file, it seams to probe and fail a bunch of settings (probably incorrectly) it also thinks it has 1mb of dedicated memory, which seam a tad odd to be fair.... but it would appear to be fixed. ideas where to look? would you like to see part of the log (its a tad larger then i would want to poke in an email) Cheers Andrew On Fri, May 7, 2010 at 2:40 PM, Wazzä <wazza(a)clear.net.nz> wrote:
Hi
I am having trouble with a ubuntu 10.4 install, the problem is sometimes it detects the display, and changes to its native res (something like 2048x1560) however other times it doesn't and then default to 1024x768,
On Fri, May 7, 2010 at 2:34 PM, Andrew Crosby <electrogeek(a)gmail.com> wrote: this
1680x1050?
wouldn't be a problem if it just stuck with one all the time, but it seams to take liberties about when it chooses with res to go with, and as this is a pc for my parents, it is somewhat annoying, any ideas?
How are you cabled into the monitor from the PC? Any KVM switches in the way? DVI or VGA cables?
DVI can be a "better" choice, as the monitor information is sent down the cables to the graphics board. (Hence why a KVM switch upsets the balance. VGA cables suffer even more, as the information can be sent through the cable, but it seems pot luck as to whether the monitor manufacturer and video card manufacturer decided to support that feature)
(PS, its a fairly boring intel on board graphics chipset)
How is the video RAM specified? Is it dynamically shared with Main memory. It can be beneficial to "fix" the amount of video ram used in the Xorg.conf (or equivalent)
Failing all that, have you looked at /var/log/Xorg.0.log to see what error messages are coming out?
Cheers, Warren. _______________________________________________ wlug mailing list | wlug(a)list.waikato.ac.nz Unsubscribe: http://list.waikato.ac.nz/mailman/listinfo/wlug
On 8 May 2010 00:51, Andrew Crosby <electrogeek(a)gmail.com> wrote:
Thanks for your reply, its just vga (its a crt monitor) and seams to detect correctly sometimes (i think this is where the problem may be). read the log file, it seams to probe and fail a bunch of settings (probably incorrectly) it also thinks it has 1mb of dedicated memory, which seam a tad odd to be fair.... but it would appear to be fixed. ideas where to look? would you like to see part of the log (its a tad larger then i would want to poke in an email)
It's a bit embarrassing, forgetting about CRT monitors! Can you post the log file up online somewhere and I'll take a look, however I would tend to be looking at the video memory allocated - 1MB is not a lot if you want nice large resolutions. Is the card onboard or an expansion card? If it's onboard I've had good success with hard coding the memory amount required directly into the Xorg.conf (I've not used Ubuntu for a while, so am not sure if Ubuntu has a habit of overwriting that file.) Cheers!
participants (3)
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Andrew Crosby -
Glenn Ramsey -
Wazzä