Talk:Problem with display remaining black after resume

T43 with Intel Graphics Media Accelerator

My T43 (1871-FYG) with Intel 915GM is also affected by the problem and the 'ATI' sollution with acpi_sleep=s3_bios works. Please consider updating the page (I don't dare to do it myself).

From my experience, this does not work with TP R50e.

If you want to be able to resume, you need :

• To start from a VT
• No option acpi_sleep
• to save the PCI state like:

cat /proc/bus/pci/00/02.0 > /var/cache/video.config

• Once you get back, restore it:

cat /var/cache/video.config > /proc/bus/pci/00/02.0

However, the X screen is not clean after the restore, so this is not very useable...

The comment on R50e

There is a comment at the end of the page on R50e, saying that you should switch to console first, and look at a page to learn how to do this.

However. it seems to me that the given script already does it. Should the comment be removed?

---

The scripts are different. However, if you can approve that the solution provided on this page resolves the problem, please remove the footnote.

Wyrfel 14:46, 17 Oct 2005 (CEST)

---

On my R50e, the script on this page works fine, while the one linked in the footnote quickly wakes up from sleep.

Thisnukes4u 19:39, 1 Jan 2006 (CET)

Problems with R51 and Intel Graphics

The problems described on the page occur intermittently with an Intel Graphics card on an R51. Here is what happens:

1. One some occassions everything seems to work fine.

2. On other occassions the screen looks OK but the some plane seems to have vanished. New text on the screen overwrites instead of replaces prior text. The "standard" pattern disappears from the X background.

3. On yet other occassions the X server dies and comes out "blank" in the mode (2) above.

4. The above problems appear only with the "i810" driver. The "vesa" driver works fine. Moreover, if the machine is "suspend-to-disk"ed then the problem disappears on resumption once the X server is killed and re-started.

But for 1 and 4 above I would have given up and either avoided suspend to ram altogether or used vesa mode---as it stands the problem is tantalising.

Kapil kapil at imsc dot res dot in

X40 with an Intel 855GM Integrated Graphics Device

I used the acpi_sleep=s3_bios boot parameter and the following ACPI script:

#!/bin/sh
set -e

vt=`fgconsole`
chvt 12
echo mem >/sys/power/state
vbetool post
chvt $vt

The acpi_sleep=s3_bios boot parameter alone did not fix things, and neither did saving and restoring the information from /proc/bus/pci/00/02.0.