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Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

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Old 10-05-2012, 10:48 PM   #1
TroN-0074
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ATI Mobility Radeon 7500 with 32MB


O.k so I have been using my Thinkpad T42 with video card ATI Mobility Radeon 7500 with 32MB.
The resolution in OpenSuSe, SlackWare, and FreeBSD is workable but not the best. When swapping hard drive with Xp in it the resolution is like 100 time better.
I am wondering if there is a better driver for it under Linux that will let me have a better picture.

The driver I have at the moment is the one installed in the system during installation but if there is something else available I would like to give it a try.

Thank you.
 
Old 10-05-2012, 11:53 PM   #2
TobiSGD
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The resolution is limited by the native resolution of your display and most likely it is not the resolution what you actually mean.
Your videocard is only supported by the free drivers, so you can't use a different driver. It would help if you can describe what exactly is bothering you about the image quality, maybe supported by a screenshot.
 
Old 10-06-2012, 10:39 AM   #3
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That Radeon 7500 is very old. I had the 7000 and it died of old age about 2002, by which stage the 7500 was mainly extinct iirc.

You need the radeon driver for X(xf86-video-ati). Resolutions to try are 800x600, and 1024x768. I don't think laptop screens went higher back then. An interlaced mode might work on 1024x768. Framebuffer should work for text consoles. Vesa should also do something.

I'd also expect the top horizontal frequency to be low. (50khz - 60khz). Don't drop that laptop. It's getting more valuable as time goes on ;-). Back then I had some card that I never got to run X (Avance Logic?) because the dot clocks were set at points (80Mhz, 85Mhz) and X would throw out any mode which wasn't spot on a usable dot clock :-/.

"mode "800x600" requires 85.2Mhz dotclock, nearest 85.0Mhz - mode deleted." or some such :-/.

I would set multiuser (console) run level in /etc/inittab and run

startx > some_file 2>&1 to catch all errors
 
Old 10-06-2012, 02:54 PM   #4
TroN-0074
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Thank you for the reply, it shows on the screen settings that 1024x768 is selected so I guess that is the best this little thing can do.

Thank you for all the info.
 
  


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