[opensuse] DPI setting for ATI fglrx driver (Opensuse 11.3)
Hi, I have a monitor with native 109 DPI. However the fglrx driver always uses 96 DPI. The result is that the fonts look to small. How can I get fglrx to use the correct DPI. I've added the Option "DisplaySize" to my xorg.conf: DisplaySize 597 336 In the /var/log/Xorg.0.log file I see that the driver sees the correct size: [ 4455.379] (II) fglrx(0): clock: 241.5 MHz Image Size: 597 x 336 mm but some lines later I see: [ 4455.426] (II) fglrx(0): DPI set to (96, 96) The desktop is then started with 96 DPI. There is no "-dpi 96" argument to the X server. How can I convince fglrx to use the correct DPI setting? Alternatively, how can I get KDM4 to add the option "-dpi 109" when it starts the local X server? Christoph -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On 2011/01/01 01:18 (GMT+0100) Christoph Bartoschek composed:
I have a monitor with native 109 DPI. However the fglrx driver always uses 96 DPI. The result is that the fonts look to small.
How can I get fglrx to use the correct DPI. I've added the Option "DisplaySize" to my xorg.conf:
DisplaySize 597 336
In the /var/log/Xorg.0.log file I see that the driver sees the correct size:
[ 4455.379] (II) fglrx(0): clock: 241.5 MHz Image Size: 597 x 336 mm
but some lines later I see:
[ 4455.426] (II) fglrx(0): DPI set to (96, 96)
The desktop is then started with 96 DPI. There is no "-dpi 96" argument to the X server.
How can I convince fglrx to use the correct DPI setting?
If https://bugzilla.novell.com/show_bug.cgi?id=661536 (which first appeared in 11.3) and https://bugs.freedesktop.org/show_bug.cgi?id=32430 aren't enough help post back & we'll figure out what else you need. -- "The wise are known for their understanding, and pleasant words are persuasive." Proverbs 16:21 (New Living Translation) Team OS/2 ** Reg. Linux User #211409 Felix Miata *** http://fm.no-ip.com/ -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
If https://bugzilla.novell.com/show_bug.cgi?id=661536 (which first appeared in 11.3) and https://bugs.freedesktop.org/show_bug.cgi?id=32430 aren't enough help post back & we'll figure out what else you need.
Hi, I've looked at the links but I cannot check because the solution is in Factory and I still use 11.3. However in the meantime I've found that this is a bug in X.org: https://bugs.freedesktop.org/show_bug.cgi?id=23705 They started to ignore the physical DPI of the monitor and use 96 DPI by default now. In my opinion this is an epic fail because they removed a praised feature to emulate bogus behaviour of older windows boxes. As they do not provide a config option for the old behaviour my question is now: How can I convince kdm4 to start the X server with the option "-dpi 109"? I tried to add it to /etc/X11/xdm/Xservers and to /usr/share/kde4/config/kdm/kdmrc but this had no effect. The mentioned bug report says that one can change the DPI with xrandr but in my opinion this is too late. The server should directly start with the correct setting. Christoph -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On 2011/01/01 12:48 (GMT+0100) Christoph Bartoschek composed:
If https://bugzilla.novell.com/show_bug.cgi?id=661536 (which first appeared in 11.3) and https://bugs.freedesktop.org/show_bug.cgi?id=32430 aren't enough help post back& we'll figure out what else you need.
I've looked at the links but I cannot check because the solution is in Factory and I still use 11.3.
FWIW, Factory is scheduled for 7 milestones prior to 11.4RC, and #6 is due soon. You might consider switching to that (or even current/5+), which has KDE 4.6 and a much improved kernel and X. 11.3 has a minimally evolved KMS kernel, and thus minimally evolved dependent subsystem (e.g. X) support for KMS paradigm changes.
However in the meantime I've found that this is a bug in X.org:
Note that bug makes no mention of ATI or fglrx, and started out as an apparent Intel driver bug.
They started to ignore the physical DPI of the monitor and use 96 DPI by default now. In my opinion this is an epic fail because they removed a praised feature to emulate bogus behaviour of older windows boxes.
It's been my experience that if using an open source driver that general default behavior does not apply to openSUSE, which will usually obey valid EDID (if it exists) to produce accurate DPI.
As they do not provide a config option for the old behaviour
You apparently didn't read the first comment in bug 32430 very well. It indicates one _can_ configure X via configfile _almost_ as before, e.g. to use whatever DisplaySize (and thus DPI) one wants: "placing screen and display parameters that used to work in xorg.conf into /etc/X11/xorg.conf.d/ files produces expected results". In 11.3, with open source drivers at least, you simply must set DisplaySize via xorg.conf.d/ rather than xorg.conf. If you use your display's actual size, you'll get an accurate DPI. You can also fudge that size to your liking by lying it bigger or smaller, which because of the way common scalable fonts behave can often produce more pleasing fonts if you choose a DPI that is a multiple of 12. In your case of a 109 DPI display that would be 108 (slightly smaller fonts) or 120 (larger fonts). http://fm.no-ip.com/Share/DisplaySize contains many sizes that, give or take rounding behavior that varies according to drivers, will produce 12 multiples. -- "How much better to get wisdom than gold, to choose understanding rather than silver." Proverbs 16:16 NKJV Team OS/2 ** Reg. Linux User #211409 Felix Miata *** http://fm.no-ip.com/ -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Am 01.01.2011 16:09, schrieb Felix Miata:
However in the meantime I've found that this is a bug in X.org:
Note that bug makes no mention of ATI or fglrx, and started out as an apparent Intel driver bug.
I first thought this is a fglrx problem. Then I thought it is a general X.org bug because of the above bug report. Now I think again that it is a fglrx problem because the radeon driver seems to not show the same behaviour. Unfortunately the radeon drvier does not work at all. I see only in the logfile that it wants to set the DPI to 108. But I get no picture from it.
As they do not provide a config option for the old behaviour
You apparently didn't read the first comment in bug 32430 very well. It indicates one _can_ configure X via configfile _almost_ as before, e.g. to use whatever DisplaySize (and thus DPI) one wants: "placing screen and display parameters that used to work in xorg.conf into /etc/X11/xorg.conf.d/ files produces expected results".
In 11.3, with open source drivers at least, you simply must set DisplaySize via xorg.conf.d/ rather than xorg.conf. If you use your display's actual size, you'll get an accurate DPI. You can also fudge that size to your liking by lying it bigger or smaller, which because of the way common scalable fonts behave can often produce more pleasing fonts if you choose a DPI that is a multiple of 12. In your case of a 109 DPI display that would be 108 (slightly smaller fonts) or 120 (larger fonts). http://fm.no-ip.com/Share/DisplaySize contains many sizes that, give or take rounding behavior that varies according to drivers, will produce 12 multiples.
I've added the option "DisplaySize 597 336" to the /etc/X11/xorg.conf and also in /etc/X11/xorg.conf.d/50-monitor.conf. I see no difference with the fglrx driver. Even after deleting /etc/X11/xorg.conf However the fglrx driver responds to the -dpi option. Is there a way to get it added to the startup of the X server if one uses kdm4? -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On 2011/01/01 17:05 (GMT+0100) Christoph Bartoschek composed:
I first thought this is a fglrx problem. Then I thought it is a general X.org bug because of the above bug report. Now I think again that it is a fglrx problem because the radeon driver seems to not show the same behaviour. Unfortunately the radeon drvier does not work at all. I see only in the logfile that it wants to set the DPI to 108. But I get no picture from it.
What video chip does lspci report you have? Maybe yours requires radeonhd rather than radeon if not using fglrx? Does any behavior change or not if you use nomodeset or radeon.modeset=0 on cmdline or not?
I've added the option "DisplaySize 597 336" to the /etc/X11/xorg.conf and also in /etc/X11/xorg.conf.d/50-monitor.conf. I see no difference with the fglrx driver. Even after deleting /etc/X11/xorg.conf
:-(
However the fglrx driver responds to the -dpi option. Is there a way to get it added to the startup of the X server if one uses kdm4?
http://lists.opensuse.org/opensuse/2011-01/msg00006.html should have answered this. -- "How much better to get wisdom than gold, to choose understanding rather than silver." Proverbs 16:16 NKJV Team OS/2 ** Reg. Linux User #211409 Felix Miata *** http://fm.no-ip.com/ -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On 2011/01/01 12:48 (GMT+0100) Christoph Bartoschek composed:
How can I convince kdm4 to start the X server with the option "-dpi 109"?
I tried to add it to /etc/X11/xdm/Xservers and to /usr/share/kde4/config/kdm/kdmrc but this had no effect.
The mentioned bug report says that one can change the DPI with xrandr but in my opinion this is too late. The server should directly start with the correct setting.
xrandr is early enough if done via xinitrc following the lines beginning "Add your own lines here..." -- "How much better to get wisdom than gold, to choose understanding rather than silver." Proverbs 16:16 NKJV Team OS/2 ** Reg. Linux User #211409 Felix Miata *** http://fm.no-ip.com/ -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
Am 01.01.2011 16:21, schrieb Felix Miata:
On 2011/01/01 12:48 (GMT+0100) Christoph Bartoschek composed:
How can I convince kdm4 to start the X server with the option "-dpi 109"?
I tried to add it to /etc/X11/xdm/Xservers and to /usr/share/kde4/config/kdm/kdmrc but this had no effect.
The mentioned bug report says that one can change the DPI with xrandr but in my opinion this is too late. The server should directly start with the correct setting.
xrandr is early enough if done via xinitrc following the lines beginning "Add your own lines here..."
I've added the line to the file /etc/X11/xinit/xinitrc. This works for the desktop. However the problem is that kdm itself starts with 96 DPI. All messages from kdm are therefore with the old setting and smaller fonts. Christoph -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
On 2011/01/03 11:09 (GMT+0100) Christoph Bartoschek composed:
Felix Miata composed:
xrandr is early enough if done via xinitrc following the lines beginning "Add your own lines here..."
I've added the line to the file /etc/X11/xinit/xinitrc. This works for the desktop. However the problem is that kdm itself starts with 96 DPI. All messages from kdm are therefore with the old setting and smaller fonts.
I'd forgotten about that problem because I spend so little time looking at any KDM login screen. Until a solution for that is found, I suggest sticking to getting correct DPI via xorg.conf*, which KDM will respect, or changing the 10pt font size entries to something larger directly in kdmrc or indirectly in kdmrc via systemsettings or kcmshell4 kdm. -- "How much better to get wisdom than gold, to choose understanding rather than silver." Proverbs 16:16 NKJV Team OS/2 ** Reg. Linux User #211409 Felix Miata *** http://fm.no-ip.com/ -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org
participants (2)
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Christoph Bartoschek -
Felix Miata