Re: Resolution problems with i810 driver, Intel 915GM 855resolution

2005-04-15 Thread Christian Zietz
Michael Jastram schrieb: Next, Writing is enabled by setting bits 0, 1, 4 and 5, as documented in section 4.8.17 (page 70). In fact, this enables two, not just one PAM register for R/W. But which ones? I don't understand where 0xcfe comes from! CONFIG_DATA starts at 0xcfc (4.6.2., page

Re: Resolution problems with i810 driver, Intel 915GM 855resolution

2005-04-14 Thread Michael Jastram
Hi Mark, I used to play around with 855resolution, trying to get 1280x720 for HDTV on my i865. I took the time to look at the 855resolution code, and you're right, it's not that complicated. IIRC there was a routine that enabled write mode in the BIOS, then another routine to make it

Re: Resolution problems with i810 driver, Intel 915GM 855resolution

2005-04-14 Thread Christian Zietz
Michael Jastram schrieb: That would be really cool - because I have no idea where the magic numbers come from, and which ones would be appropriate for the 915GM. I looked at the outl/outb documentation, but obviously the values are hardware specific. Can you, or anybody on the list, give me

Re: Resolution problems with i810 driver, Intel 915GM 855resolution

2005-04-14 Thread Michael Jastram
Christian, The registers to change are documented in the datasheet of the specific chipset by Intel. You'll have to look for the PAM registers (at least that's what they're called for i8xx-chipsets). That was really helpful. I was surprised to find the datasheets readily available for

Resolution problems with i810 driver, Intel 915GM 855resolution

2005-04-13 Thread Michael Jastram
Hello, I am banging my head against the wall to get X to take advantage of the native resolution of my laptop, 1400x1050. It's an IBM ThinkPad R52 with an Intel 915GM video card. After reading up on the problem, I learned about Alain Poirier's 855resolution tool, which seems to be the last

Re: Resolution problems with i810 driver, Intel 915GM 855resolution

2005-04-13 Thread Mark Lehrer
On Wed, Apr 13, 2005 at 03:46:13PM -0400, Michael Jastram wrote: I am banging my head against the wall to get X to take advantage of the native resolution of my laptop, 1400x1050. It's an IBM ThinkPad R52 with an Intel 915GM video card. After reading up on the problem, I learned about Alain