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eee
Tux's lil' helper
Joined: 29 May 2003
Posts: 115
Location: MD
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 Posted: Fri Jun 13, 2003 1:00 pm Post subject: [patch] Blanking laptop screen with Radeon 9000 |
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Thanks to http://michaelo.free.fr/contrib/radeon/poweroff.php3, I was finally able to get my radeon 9000 laptop (dell 600m) screen to blank. That means that, using the acpi code located at http://beta.phys.uh.edu/%7Eafritz/d800/gentoo-d800.html, the laptop actually goes into a useful sleep mode when the lid is closed!
To get this to work, I had to go through the (admittedly non-trivial) following steps:
| Code: | # ebuild /usr/portage/x11-base/xfree/xfree-4.3.0-r3.ebuild unpack
# cd /var/tmp/portage/xfree-4.3.0-r3/work/xc/programs/Xserver/hw/xfree86/drivers/ati
# patch radeon_driver.c < radeon_backlight.patch
# ebuild /usr/portage/x11-base/xfree/xfree-4.3.0-r3.ebuild compile |
I could have continued with the ebuild install & ebuild qmerge (per https://forums.gentoo.org/viewtopic.php?t=5378), but, in the absence of any other system changes, I just needed to replace the already installed radeon_drv.o:
| Code: | # cd /usr/X11R6/lib/modules/drivers/
# mv radeon_drv.o radeon_drv.o.orig
# cp /var/tmp/portage/xfree-4.3.0-r3/work/xc/programs/Xserver/hw/xfree86/drivers/ati/radeon_drv.o . |
After (re)starting X, screen blanking worked as advertised.
The patch, built by grabbing the source from the xfree86 bug system (http://bugs.xfree86.org//cgi-bin/bugzilla/show_bug.cgi?id=26) is as follows:
| Code: | --- radeon_driver.c.orig 2003-06-13 06:08:04.000000000 -0400
+++ radeon_driver.c 2003-06-13 06:08:03.000000000 -0400
@@ -6539,31 +6539,17 @@
if (info->accelOn) info->accel->Sync(pScrn);
- /* The entire DPMS code seems overly complicated to me, and perhaps
- * could be rewritten to use DISP_PWR_MAN_DPMS instead of manually twiddlin
g
- * the CRTCs. This perhaps would enable DPMS to work properly on more hardw
are
- * without special casing? - Mike A. Harris <mharris@redhat.com>
- */
if (info->FBDev) {
fbdevHWDPMSSet(pScrn, PowerManagementMode, flags);
- } else if (info->DisplayType == MT_DFP) {
- switch (PowerManagementMode) {
- case DPMSModeOn:
- OUTREG(RADEON_FP_GEN_CNTL,
- INREG(RADEON_FP_GEN_CNTL) | (RADEON_FP_TMDS_EN | RADEON_FP_FP
ON));
- break;
- case DPMSModeStandby:
- case DPMSModeSuspend:
- case DPMSModeOff:
- OUTREG(RADEON_FP_GEN_CNTL,
- INREG(RADEON_FP_GEN_CNTL) & ~(RADEON_FP_TMDS_EN | RADEON_FP_F
PON));
- break;
- }
} else {
- int mask1 = (RADEON_CRTC_DISPLAY_DIS | RADEON_CRTC_HSYNC_DIS |
- RADEON_CRTC_VSYNC_DIS);
- int mask2 = (RADEON_CRTC2_DISP_DIS | RADEON_CRTC2_VSYNC_DIS |
- RADEON_CRTC2_HSYNC_DIS);
+ int mask1 = (RADEON_CRTC_DISPLAY_DIS |
+ RADEON_CRTC_HSYNC_DIS |
+ RADEON_CRTC_VSYNC_DIS);
+ int mask2 = (RADEON_CRTC2_DISP_DIS |
+ RADEON_CRTC2_VSYNC_DIS |
+ RADEON_CRTC2_HSYNC_DIS);
+
+ /* TODO: additional handling for LCD ? */
switch (PowerManagementMode) {
case DPMSModeOn:
@@ -6573,6 +6559,14 @@
else {
if (info->Clone)
OUTREGP(RADEON_CRTC2_GEN_CNTL, 0, ~mask2);
+ if (info->DisplayType == MT_LCD) {
+ usleep(RADEONPTR(pScrn)->PanelPwrDly * 1000);
+ OUTREGP (RADEON_LVDS_GEN_CNTL, (RADEON_LVDS_ON | RADEON_LVDS
_BLON),
+ ~(RADEON_LVDS_ON | RADEON_LVDS_BLON));
+ } else if (info->DisplayType == MT_DFP) {
+ OUTREGP (RADEON_FP_GEN_CNTL, RADEON_FP_FPON | RADEON_FP_TMDS
_EN,
+ ~(RADEON_FP_FPON | RADEON_FP_TMDS_EN));
+ }
OUTREGP(RADEON_CRTC_EXT_CNTL, 0, ~mask1);
}
break;
@@ -6619,6 +6613,12 @@
if (info->Clone)
OUTREGP(RADEON_CRTC2_GEN_CNTL, mask2, ~mask2);
OUTREGP(RADEON_CRTC_EXT_CNTL, mask1, ~mask1);
+ if (info->DisplayType == MT_LCD) {
+ usleep(RADEONPTR(pScrn)->PanelPwrDly * 1000);
+ OUTREGP (RADEON_LVDS_GEN_CNTL, 0, ~(RADEON_LVDS_ON | RADEON_
LVDS_BLON));
+ } else if (info->DisplayType == MT_DFP) {
+ OUTREGP (RADEON_FP_GEN_CNTL, 0, ~(RADEON_FP_FPON | RADEON_FP
_TMDS_EN));
+ }
}
break;
}
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metalac
Apprentice
Joined: 21 Aug 2002
Posts: 191
Location: Seattle, USA
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| Posted: Sat Jun 14, 2003 12:50 am Post subject: |
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go to www.linux-laptop.net and see if anyone over there had that laptop working properly.
_________________
>>>>> Ignorance is bliss <<<<< |
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