LinuxQuestions.org
View the Most Wanted LQ Wiki articles.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware
User Name
Password
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

Notices

Reply
 
LinkBack Search this Thread
Old 12-10-2012, 08:50 AM   #1
krisbee
Member
 
Registered: Jan 2006
Posts: 60

Rep: Reputation: 15
ATI Radeon 7000 - 15, 16, 24 color bit depth issues...


Hello,

I have an older computer that is my main computer/server and I am using an ATI Radeon 7000 AGP video card on it... it is fine for my needs, however, if I run Skype and both of us use our webcams, the picture gets scrambled, like an old cable channel.

I have discovered through countless xwindow reboots that 15 bit color doesn't have this issue, only 24bit. When I try to use 16 bit color, the display goes darker and the colors are weird, making the desktop pretty much unusable. The monitor is an LCD generic 4:3 monitor.

15 bit color is too chunky and does terrible things to video (which I use this computer to watch mpgs for editing and stuff sometimes); I think 16bit color may be good enough, but I can't get that to work... so basically I have to edit my xorg.conf and reboot xwindows if I plan to webcam on skype.

The radeon driver works best (tried ati) and it is the only driver where the 3d acceleration works (I have tried this with that on and off)...

Vesa works, but video is way too slow using that on my computer...

Any suggestions, am I missing something?

Thanks in advance,
Kris
 
Old 12-11-2012, 07:26 AM   #2
TobiSGD
Moderator
 
Registered: Dec 2009
Location: Hanover, Germany
Distribution: Slackware
Posts: 14,868
Blog Entries: 2

Rep: Reputation: 3803Reputation: 3803Reputation: 3803Reputation: 3803Reputation: 3803Reputation: 3803Reputation: 3803Reputation: 3803Reputation: 3803Reputation: 3803Reputation: 3803
Which distribution in which version are you using?
 
Old 12-11-2012, 09:32 AM   #3
krisbee
Member
 
Registered: Jan 2006
Posts: 60

Original Poster
Rep: Reputation: 15
I am using Mandriva 2010.2 at the moment. Can't remember which version of xorg or which kernel (2.6 something)... unfortunately at work...
 
Old 12-16-2012, 04:53 PM   #4
business_kid
Guru
 
Registered: Jan 2006
Location: Ireland
Distribution: Slackware & Android
Posts: 5,953

Rep: Reputation: 496Reputation: 496Reputation: 496Reputation: 496Reputation: 496
ATI Radeon 7000 . . mine blew 10 years ago. They were made 1997-2000.

They came with 1MB of ram, IIRC. You can't do 1024x768 on 24 bit colour because you haven't enough ram.
 
Old 12-16-2012, 05:11 PM   #5
krisbee
Member
 
Registered: Jan 2006
Posts: 60

Original Poster
Rep: Reputation: 15
I'm doing 1280X1024 in 24 bit without issue... only skype causes an issue... but normally video causes no issue. It is 16 bit that causes the problem... in looking back on the xorg site, apparently this is a known bug and the advice is just use 24 bit! HA! So, it looks like I am stuck at either 15bit or 24bit... and since only skype causes the issue, I will either just live with it or reboot in 15 bit for skype sessions... oh well, that's the way the cookie crumbles on old hardware.
 
Old 12-16-2012, 05:24 PM   #6
TobiSGD
Moderator
 
Registered: Dec 2009
Location: Hanover, Germany
Distribution: Slackware
Posts: 14,868
Blog Entries: 2

Rep: Reputation: 3803Reputation: 3803Reputation: 3803Reputation: 3803Reputation: 3803Reputation: 3803Reputation: 3803Reputation: 3803Reputation: 3803Reputation: 3803Reputation: 3803
Quote:
Originally Posted by business_kid View Post
ATI Radeon 7000 . . mine blew 10 years ago. They were made 1997-2000.

They came with 1MB of ram, IIRC. You can't do 1024x768 on 24 bit colour because you haven't enough ram.
Just for completeness, the Radeon 7000 (aka Radeon VE) usually came with 32MB RAM.
 
Old 12-17-2012, 03:53 AM   #7
business_kid
Guru
 
Registered: Jan 2006
Location: Ireland
Distribution: Slackware & Android
Posts: 5,953

Rep: Reputation: 496Reputation: 496Reputation: 496Reputation: 496Reputation: 496
Quote:
Originally Posted by TobiSGD View Post
Just for completeness, the Radeon 7000 (aka Radeon VE) usually came with 32MB RAM.
Not over here! some of the early ones were let out with next to no ram. It's the usual story, of course - ATI made the GPUs and various sellers made cards. Mine had 1MB and it had sockets for another 1MB so you could pop the chips in. As the OP can hit 1280x1024, obviously his has enough.
 
Old 12-17-2012, 08:57 AM   #8
cascade9
Senior Member
 
Registered: Mar 2011
Location: Brisneyland
Distribution: Debian, aptosid
Posts: 3,657

Rep: Reputation: 881Reputation: 881Reputation: 881Reputation: 881Reputation: 881Reputation: 881Reputation: 881
I think you've got several different ATI series confused business_kid.

With Radeon 7000 (and higher) I've never seen or heard of one having less than 16MB RAM, or having RAM expansion slots. 7XXX cards were made from 2000-2002 (though is possible OEMs were still using them after 2002/2003).

ATI Rage was 1995-2000. 2MB-32MB versions. Cant recall seeing RAM expansion slots on them, though its possible they exist.

ATI Mach was 1991-1995. I know I've seen Mach64 CTs with 1MB + 2 x RAM expansion slots for 2MB total.

Still, its a good point. the maximum butdepth can be RAM limited, even with 16MB/32MB/64MB cards. What resolution are you trying to run krisbee?
 
Old 12-17-2012, 01:33 PM   #9
business_kid
Guru
 
Registered: Jan 2006
Location: Ireland
Distribution: Slackware & Android
Posts: 5,953

Rep: Reputation: 496Reputation: 496Reputation: 496Reputation: 496Reputation: 496
This isn't helping the OP so I won't pursue it.4
I got a box in the 1990s with an ATI 7k fitted, which wouldn't do 1024x768x24. It had an AMD 'i586-pp75 cpu in a 486 board and had only one mb of ram. 1mb, not 2mb. Someone did it. It didn't last long anyhow. I presume you never saw any of them there but we were at the mercy of importers and got absolute crap as pcs during that period unless we paid top dollar.
 
Old 12-21-2012, 07:06 AM   #10
cascade9
Senior Member
 
Registered: Mar 2011
Location: Brisneyland
Distribution: Debian, aptosid
Posts: 3,657

Rep: Reputation: 881Reputation: 881Reputation: 881Reputation: 881Reputation: 881Reputation: 881Reputation: 881
Bought in the 90s, with a 1995-1997 (at the latest) CPU? That would be a Mach. Unless you had the worlds only time traveling ATI 7000 series card.
 
Old 12-21-2012, 02:39 PM   #11
business_kid
Guru
 
Registered: Jan 2006
Location: Ireland
Distribution: Slackware & Android
Posts: 5,953

Rep: Reputation: 496Reputation: 496Reputation: 496Reputation: 496Reputation: 496
The amd i586 was a cheapo option to get rid of 486 boards someone had left over after all the 486 cpus were gone. You ran it clocked as a dx-80 in one place, and a dx-100 in another and it did 160mhz instead of the designed 133mhz. and I didn't say 1995-1997, I said 1990-2000.

Ireland was (and to some extent is still) a backwater in retail computers. Remember all the things I couldn't get?

Last edited by business_kid; 12-21-2012 at 02:41 PM.
 
Old 12-22-2012, 03:15 AM   #12
cascade9
Senior Member
 
Registered: Mar 2011
Location: Brisneyland
Distribution: Debian, aptosid
Posts: 3,657

Rep: Reputation: 881Reputation: 881Reputation: 881Reputation: 881Reputation: 881Reputation: 881Reputation: 881
I said '1995-1997' because in my experience that is when the AMD 5x86 CPU were avaible.

Even if you did get the system in 1999-2000 it still wouldnt have a 7000 series GPU with 1MB. That setup never existed. Even if it had, a 1995 era CPU with a brand new 7000 series GPU doesnt make any sense.
 
Old 12-22-2012, 01:19 PM   #13
NyteOwl
Member
 
Registered: Aug 2008
Location: Nova Scotia, Canada
Distribution: Slackware, OpenBSD, others periodically
Posts: 512

Rep: Reputation: 138Reputation: 138
RE the original post: I had a similar problem somem time ago using the onboard Trident graphics on an older motherboard. 24-bit was fine but 16 was not so the issue isn't confined to ATI.

FWIW I have two 7xxx cards here. Both are 1999-2002 vintage. One is 32Mb and the other is 64MB. Both are PCI. Nor provision for ram expansion.

Companies make different models for sale in different markets so variations aren't that surprising.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Can I Use 8 Bit Color Depth? taurusx5 Linux - Software 3 09-17-2008 02:21 AM
32 bit color depth chii-chan Linux - General 4 03-19-2004 08:15 AM
can slackware do 32 bit color depth alkad_mzu Slackware 6 11-16-2003 09:13 AM
Radeon 7000 RV100 QY unable to change color depth tarheel92x Linux - Hardware 3 10-15-2003 08:01 AM
How do I how do you increase color depth from 24 to 32 bit (redhat 8.0) alkad_mzu Linux - Newbie 2 07-20-2003 08:00 PM


All times are GMT -5. The time now is 11:00 AM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration