From mboxrd@z Thu Jan 1 00:00:00 1970 Message-Id: <199909151707.MAA16408@lists.linuxppc.org> Date: Wed, 15 Sep 1999 13:05:10 -0400 (EDT) From: Kevin_Hendricks Reply-To: Kevin_Hendricks Subject: Re: controlfb.c bug in VRAM bank2 check if bank1 To: mlan@cpu.lu, ldl@chpc.utah.edu Cc: linuxppc-dev@lists.linuxppc.org MIME-Version: 1.0 Content-Type: TEXT/plain; charset=us-ascii Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Hi, Just to add fuel to the fire (although I am not sure if this is related or not) My B+W G3 rev2 with 16MB of vram has never ever detected the correct amount. In fact, if I run Xconfigurator, it tells me I have less then 1MB of vram and therefore won't let me use any of the higher resolutions that should work. The interesting thing is that if I change my bpp via the MacOS, Xconfigurator reports completely different amounts of vram available and not in any logical way that I can see. Any fixes along these lines would be greatly appreciated (this is with Paul's 2.2.10 stable kernel available from his website). Just thought someone in the know should be told :-) Kevin >> Hmm... official 2.2.12 does detect my 4 MB... and this is a 7600, so the same >> motherboard as the 7500... >> >> Michel . . . > >Odd. I thought I tried stock 2.2.12 and it didn't detect the 4MB VRAM in my >PowerMac 7500. Now I'm not so sure. A quick diff of the kernel controlfb.c sources >between 2.2.6 and 2.2.12 reveal no difference though in the VRAM bank check code >though so it also seems to me that if people had this problem in 2.2.6 then 2.2.12 >should also be unable to detect the full 4MB VRAM. If you're saying that the >hardware should be identical then could some other software be responsible such as >the OF software be perhaps different and causing this different behavior? I'd >really like some confirmation now that others with 7500 don't get all >4MB VRAM detected even using stock 2.2.12. I've read postings from others that >they didn't get 4MB VRAM detected but I don't think that was with 2.2.12 at that >time. > -- Kevin B. Hendricks Associate Professor of Operations and Information Technology Richard Ivey School of Business, University of Western Ontario London, Ontario N6A-3K7 CANADA khendricks@ivey.uwo.ca, (519) 661-3874, fax: 519-661-3959 ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/